cad-agent.References · Fasteners, bought hardware and assembly in the catalogue · Markdown · JSON
References · Mechanical design
Fasteners, bought hardware and assembly
80 records: 69 read sources that cad-agent's rules and checks may cite, and 11 records catalogued from the Reference Map, not yet read. Screws, inserts and other bought parts, and getting them in and out.
Catalogued records are search snippets: their numbers are the authors' claims and their licences are as the map states them, unread. Cite one only after reading the source and promoting it (how).
Coverage
What cad-agent checked for these topics when the map was made, and the gap it found. The issue it drafted for each gap was never posted.
ImplementedHeat-set insert hole, depth, pull-out, torque-out
Gap: Hole size not varied by material or nozzle; no M2.5/M6/M10 rows; no lying-axis capacity data; EPFL-style chamfer advice not modelled.
PartlyScrew boss wall/spacing; self-tapping holes in plastic
Gap: Only DELTA PT sizes; no boss spacing or rib-gusset rule in code; no hole size by resin/filament; boss rules in profile are not run by dfm.check.
Drafted issue, never posted: “Add boss-to-boss spacing and per-material self-tap pilot sizes”
ImplementedPEM/self-clinching edge distance and hole size
Gap: Cited subset of parts; PEM blind types B/BS and standoff families not covered; SendCutSend 0.23-0.31 in catalog edge distance not mapped; rivets in mechanical/rivets.py.
Records
80 records
| Record | Kind | Evidence | Confidence | Licence | Process | Role |
|---|---|---|---|---|---|---|
| Adding Inserts to 3D Printed Parts: Hardware Tips (GrabCAD Print)PADT (Stratasys reseller) · 2019 PADT on inserts in Stratasys FDM parts (2019): size the hole from the insert's data sheet, slightly under; Stratasys Insight sets four to six contours round each insert hole, and GrabCAD Print makes insert holes itself. Read: 2026-11-04: opened the article (2019-08-06); read it whole: holes from the insert's data sheet, slightly undersized; Stratasys Insight's four to six contours round each insert hole; GrabCAD Print's insert holes. encoded Several contours round each insert hole for pull-out and torque-out (Stratasys Insight: four to six) | Guide | encoded | high 0.9 | proprietarynot read | 3D printingInserts and fasteners | not assessed |
| Are Our Heat-Set Insert Datasheets Wrong?CNC Kitchen · 2026 Tensile-tester pull-out tests of heat-set inserts at several hole diameters; compares printed to drilled holes. Read: 2026-10-31: opened the article (2026-03-28); read the pull-out test of about 50 M3 inserts in PLA over hole diameters 3.6–4.6 mm: printed holes about 0.25 mm under CAD, 4.0 mm nominal, 4.2 mm in CAD as the sweet spot at about 90 % of the h… encoded Size the hole so the insert just pre-seats with slight resistance; oversize holes lose pull-out fast (drilled M3: the big drop between 4.1 and 4.2 mm) conflicting Printed holes came out about 0.25 mm under CAD (CORE One L, PolySonic PLA); add 0.2-0.3 mm in CAD for small inserts; every printer and material shrinks holes differently | Guide | encoded | high 0.9 | proprietarynot read | 3D printingInserts and fasteners | not assessed |
| How to Design the Proper Hole for Heat/Ultrasonic Inserts (SPIROL white paper)SPIROL SPIROL's white paper on holes for heat and ultrasonic inserts: straight and tapered holes, depth the insert's length plus two pitches, counterbores, a larger hole in filled plastics (+0.08 mm at 15 % filler, +0.15 mm at 35 %) and a boss 2-3 times the insert's diameter. Read: 2026-11-04: opened the white paper page; read it whole: straight and tapered holes (taper at most 1 degree included, tapered 8 degrees), depth L + 2 pitches, counterbores, the filler increase, the boss 2-3 x the insert and the mating part'… corroborated Boss diameter 2 to 3 x the insert's, the multiplier falling as the insert grows encoded Grow the recommended hole 0.08 mm (0.003 in) at 15 % glass or mineral filler or more, 0.15 mm (0.006 in) at 35 % or more, interpolated between corroborated Larger holes decrease performance; smaller ones stress and crack the plastic and are hard to install | Guide | encodedAuthors' claim: numbers stated, not measured | high 0.9 | proprietarynot read | Inserts and fastenersMoulding and casting | not assessed |
| PolyholesHydraRaptor (blog) · 2011 Why printed holes come out small (mesh facets, arc shrinkage, corner cutting) and the polyhole rule that draws them as few-sided polygons that print to size. Read: 2026-11-04: opened the post (2011-02-05); read it whole: the faceting, segment-pausing, arc-shrinkage and corner-cutting causes of small holes, the test plates and the polyhole rule. encoded A mesh's polygon shrinks a hole by cos(pi / n): 10 vertices leave 5 %, 22 leave 1 % encoded A hole of d mm drawn with max(round(2 d), 3) vertices on a circle of d / cos(pi / n) prints to size on two of his machines (0.4 and 0.5 mm nozzles) unconfirmed The RepRap arc-compensation formula under-predicts the shrink; corner cutting adds to it | Article or blog post | encoded | high 0.9 | licence unclearnot read | 3D printing | not assessed |
| Arc CompensationRepRap project (RepRap wiki) · 2015 The area balance that says how far a perimeter's path must move out for a small printed hole to come out to size; a floor on the shrink, not all of it. Read: 2026-11-04: opened the wiki page (last edited 2015-07-19); read the derivation r = (t + sqrt(t^2 + 4 R^2)) / 2 and its table for a 0.5 mm track. encoded A track t wide round a hole of radius R needs its centre line at r = (t + sqrt(t^2 + 4 R^2)) / 2; for t = 0.5 mm, R = 2 mm gives 2.27 mm | Guide | encoded | medium 0.7 | not read | 3D printing | not assessed |
| Threaded Inserts for 3D Prints - Cheap VS ExpensiveCNC Kitchen · 2019 Pull-out and torque-out tests of M3 heat-set inserts in printed holes of several diameters; knurl pattern and hole size drive results. Read: 2026-11-01: the article (2019-12-07) opened; read for cadagent.mechanical.inserts (#230), its pull-out tests. encoded ruthex M3 pulled out at 181 kg on average in a 4.0 mm hole, eBay inserts 157 kg in 4.1 mm, cheap moulded ones 39 kg in 4.5 mm; every insert held 3-4 N m until the bolt head sheared (100 % infill) conflicting Printed holes came out 0.1 mm small on an Original Prusa in Prusament (strips of 4-5 mm holes in 0.1 mm steps, gauged with drill bits); STL triangulation and shrinkage are among the causes | Guide | encoded | medium 0.7 | proprietarynot read | 3D printingInserts and fasteners | not assessed |
| Tips & Tricks for Heat-Set Inserts used in 3D printingCNC Kitchen · 2021 Practical heat-set insert advice for printed parts: blind hole depth and chamfer. Read: 2026-10-31: opened the article (published 2021-10-01, since updated); read the iron temperature (10–20 °C above printing temperature), the 90 % melt-in, and the hole rules (blind hole about 1 mm deeper than the insert, straight not tapered… encoded A blind hole about 1 mm deeper than the insert is long; through holes no longer than the insert; straight, not tapered conflicting Normally no chamfer at the hole's edge conflicting Iron 10-20 degC above the printing temperature (PLA about 225, PETG 245, ABS 265 degC) | Guide | encoded | medium 0.7 | proprietarynot read | 3D printingInserts and fasteners | not assessed |
| Tips and Tricks: Heat-Set InsertsLulzBot · 2017 LulzBot on heat-set inserts (2017): install with a soldering iron at the printing temperature; make the wall round the insert a whole number of extrusion widths, two or more perimeters, and chamfer the hole for the melt. Read: 2026-11-04: opened the page (2017-04-17); read it whole: installation with a soldering iron at the printing temperature and the design tips. encoded Set the wall round the insert to a whole multiple of the extrusion width so it prints as solid perimeters; two or more perimeters conflicting A chamfered edge on the hole leaves room for the melt | Guide | encoded | medium 0.7 | proprietarynot read | 3D printingInserts and fasteners | not assessed |
| 3D Printing Threads and Adding Threaded Inserts to 3D Printed PartsFormlabs Formlabs on threads and inserts in resin (SLA) parts: heat-set inserts go in with CA glue or epoxy, the boss at the insert's widest diameter; brittle resins may crack with self-tapping screws. Read: 2026-11-04: opened the article; read the inserts, threads and self-tapping sections. unconfirmed Brittle, low-elongation resins (Formlabs' Rigid) may crack with self-tapping screws corroborated Heat-set inserts go into thermoset (SLA) parts with CA glue or epoxy, the boss at the insert's widest diameter | Guide | verified at source | medium 0.7 | proprietarynot read | 3D printingInserts and fasteners | not assessed |
| E-Z LOK Brochure 2026E-Z LOK E-Z LOK's 2026 brochure: press-in, ultrasonic and heat-stake inserts for plastics and threaded inserts for metal, each table with its hole size; hole sizes vary with material and tools, so test the application. Read: 2026-11-04: opened the PDF; read the contents and the insert tables (press-in, ultrasonic and heat-stake, threaded inserts for metal), each with its hole size and the footnote on it. corroborated Hole size requirements vary with material and tools: test the application | Guide | verified at sourceAuthors' claim: numbers stated, not measured | medium 0.7 | proprietarynot read | Inserts and fasteners | not assessed |
| How to use threaded inserts (EPFL makerspace wiki)EPFL Make EPFL makerspace wiki on heat-set inserts: use the maker's hole diameter, depth (at least 1 mm deeper than the insert) and wall, a 0.3-0.5 mm chamfer to guide the insert, and a drill if PETG has shrunk the hole. Read: 2026-11-04: opened the wiki page (modified 2026-09-04); read it whole. The snippet's 'hole about 0.4 mm under the insert's OD' is not on it: it says to use the maker's hole. corroborated Use the maker's hole diameter, depth and wall, with at least 1 mm more depth conflicting A 0.3-0.5 mm chamfer guides the insert unconfirmed PETG can shrink slightly after printing: open the hole with a drill rather than force the insert | Guide | verified at source | medium 0.7 | proprietarynot read | 3D printingInserts and fasteners | not assessed |
| Plastic Boss Design on Molded PartsProtolabs Boss design advice: tie bosses to walls with ribs rather than thick solid sections; rib-to-wall ratio 40-60%. Read: 2026-10-31: opened the page; read the boss wall (40–60 % of the wall it rises from) and boss draft (0.5–3° by height). corroborated A boss's wall 40 to 60 percent of the wall it rises from; ribs or gussets rather than a thicker wall | Guide | verified at source | medium 0.7 | proprietarynot read | Moulding and castingInserts and fasteners | not assessed |
| Screw boss design injection moldingRapidDirect · 2023 RapidDirect's screw-boss rules for moulded parts: a boss wall about 60 % of the nominal wall (against sink), height under 3 times its outside diameter, and bosses at least 2 walls apart. Read: 2026-11-04: opened the article (2023-05-19, updated 2025-03-10); read the boss rules: wall about 60 % of the nominal wall, height under 3 x the outside diameter, bosses at least 2 x the wall apart. The snippet's 80 % pilot and 200 % boss a… corroborated Boss wall about 60 % of the nominal wall (sink); boss height under 3 x its outside diameter; bosses at least 2 x the nominal wall apart | Guide | verified at sourceAuthors' claim: numbers stated, not measured | medium 0.7 | proprietarynot read | Moulding and castingInserts and fasteners | not assessed |
| 3D Printed Fasteners: Part 1 - InsertsEmbedded Computing · 2020 A retelling of CNC Kitchen's 2020 M3 test: a direct screw, a heat-set insert and a Helicoil all pulled out at about 120 kg; the heat-set insert was best in torque-out, at 3 N m. Read: 2026-11-04: opened the article (2020-08-28; the link now redirects); read it whole. Its strength numbers retell CNC Kitchen's 2020 test. corroborated M3 pull-out about 120 kg for a direct screw, a heat-set insert and a Helicoil alike; the heat-set insert best in torque-out, at 3 N m | Guide | readAuthors' claim: numbers stated, not measured | medium 0.7 | proprietarynot read | 3D printingInserts and fasteners | not assessed |
| A Guide to PEM Hardware Inserts in Sheet MetalSendCutSend · 2024 Blog guide to PEM hardware inserts in sheet metal; title only seen in results. Read: 2026-11-01: opened the post (2024-09-26, no byline). Read the sheet families (aluminium except 2024, mild steel, G90, 304, 316), the side to install a nut on, and the worked example: 1/4-20 nut in 0.063 in 5052, centre to edge 0.340, centr… | Guide | read | low 0.4 | proprietarynot read | Sheet metal and laserInserts and fasteners | not assessed |
| Best Practices for Using Blind RivetsMachine Design Machine Design on blind rivets: follow the rivet maker's hole size closely, for strength, pull-up and hole fill. Read: 2026-11-04: opened the article (updated 2023-04-12, first 2016-02-03); read its hole-size advice: follow the rivet maker's hole closely for strength, pull-up and hole fill. | Guide | read | low 0.4 | proprietarynot read | Inserts and fasteners | not assessed |
| Brass insert installation: comparing heat vs ultrasonic vs press fit (Plastics Technology)Plastics Technology Compares heat, ultrasonic and press-fit installation of brass inserts in moulded plastic: heat takes the widest range of resins, ultrasonic is fastest, press-fit weakest and riskiest in filled resins. Read: 2026-11-04: opened the article (by the founder of a heat-staking maker); read it whole: heat, ultrasonic and press-fit installation, the material notes and the boss and hole figure. conflicting Hole sized to the insert's lead diameter, with a lead-in chamfer; glass and mineral fillers do not melt and raise the cracking risk | Guide | read | low 0.4 | proprietarynot read | Inserts and fastenersMoulding and casting | not assessed |
| Compression Limiter Design GuideSPIROL Compression limiters in bolted plastic joints: the limiter slightly shorter than the host, the bolt at 25-75 % of its proof load, 3-5 % compression a safe limit; size tables. Read: 2026-11-04: opened the PDF (UK edition, 10/25); read the design rules: the limiter slightly shorter than the host, bolt load 25-75 % of proof, 3-5 % compression a safe limit and 5-7 % safe for most plastics, and the size tables. unconfirmed Bolt load 25 to 75 % of proof (at most 75 %); 3-5 % compression a safe limit, 5-7 % safe for most plastics | Guide | read | low 0.4 | proprietarynot read | Inserts and fastenersMoulding and casting | not assessed |
| Design Guide Bonding PlasticsHenkel Loctite Henkel's Loctite Design Guide for Bonding Plastics (Volume 5, 11/2008): how to use it, and adhesive shear-strength tables, one chapter per plastic. Read: 2026-11-04: opened the PDF (Volume 5, 11/2008); read its contents and how to use the guide and its adhesive shear-strength tables, one chapter per plastic. | Guide | read | low 0.4 | proprietarynot read | Inserts and fasteners | not assessed |
| Designing Sheet Metal Parts With Tab and SlotsSendCutSend · 2023 Tab and slot design for self-fixturing sheet metal; related post warns thin material flexes and powder coat tightens fits. Read: 2026-10-31: opened the page (published 2023-01-16, no byline). Read the slot width and height formulas, the powder-coat allowance and the tab-length rule. | Guide | read | low 0.4 | proprietarynot read | Sheet metal and laserInserts and fasteners | not assessed |
| Fastenatingslehmann1 (GitHub) An MIT-licensed tension-only bolted joint calculator: separation, yield and fatigue factors of safety and joint diagrams, with Cornwell's stiffness fits. Read: 2026-11-04: opened the repository; read the README: a tension-only bolted joint calculator (separation, yield and fatigue factors of safety, joint diagrams) with Cornwell's stiffness fits. Licence file not read. | Guide | read | low 0.4 | proprietarynot read | Inserts and fasteners | not assessed |
| FreeCAD Fasteners WorkbenchFreeCAD community (github.com/shaise) FreeCAD workbench adding and attaching various fasteners to parts. Read: 2026-11-01: gh api (GPL-2.0, version 0.5.67, last commit 2026-09-10). Read FsData/PEMFasteners.csv and the generators: metric PEM press nuts M2–M12 (shank codes 00–2), SO and BSO standoffs M3–M5 and FH studs M2.5–M8, geometry only, with no… | Guide | read | low 0.4 | GPL-2.0-or-laternot read | Inserts and fasteners | not assessed |
| Guidelines for Threaded Holes in CNC MachiningProtolabs Protolabs' CNC thread tables: UNC and UNF from #2-56 to 1/2-13 and metric coarse and fine from M2 to M12, each with its thread depth. Read: 2026-11-04: opened the page (it redirects to the en-gb services page); read the thread tables: UNC and UNF from #2-56 to 1/2-13, metric coarse and fine from M2 to M12, with their depths. unconfirmed Threads offered UNC/UNF #2 to 1/2 in and metric M2 to M12 | Guide | readAuthors' claim: numbers stated, not measured | low 0.4 | proprietarynot read | CNC machiningInserts and fasteners | not assessed |
| Hardware Installation Design GuidelinesPCBWay PCBWay on installing hardware in sheet metal: hole centre at least 1.5 hole diameters from an edge, and from a bend tangent at least R + t plus a margin (2t + R + 3 mm). Read: 2026-11-04: opened the article; read the edge (C >= 1.5 Dh) and bend clearance rules. conflicting Hole centre to bend tangent at least R + t + a margin, or 2t + R + 3 mm | Guide | read | low 0.4 | proprietarynot read | Sheet metal and laserInserts and fasteners | not assessed |
| Helicoil install guide (Albany County Fasteners)Albany County Fasteners Helical coil insert installation by insert type: drill, tap with an STI tap (not a standard one), install, break the tang, and seat the coil 1/4 to 1/2 turn below the surface. Read: 2026-11-04: opened the PDF; read the install steps per insert type (drill, STI tap, install, break the tang) and the seating depth. unconfirmed Seat the coil 1/4 to 1/2 turn below the surface; an STI tap, not a standard tap | Guide | read | low 0.4 | proprietarynot read | Inserts and fastenersCNC machining | not assessed |
| How to Save Time with Locating Features for WeldmentsSendCutSend Tabs and slots that locate laser-cut weldment parts without fixtures: each slot as wide as the plate thickness, the tab short of the far face where it must not show. Read: 2026-11-04: opened the article; read it whole: a five-part 3/8 in steel weldment located by tabs and slots, each slot as wide as the plate. | Guide | read | low 0.4 | proprietarynot read | Sheet metal and laserInserts and fasteners | not assessed |
| Jawstec: Why Heat-Set Insert Specifications Need ScrutinyJawstec Retells CNC Kitchen's insert tests: oversized holes lose pull-out, undersized ones are hard to install and may crack; size the hole for your insert and material and test it. No numbers. Read: 2026-11-04: opened the article (2026-09-04; the old ?p= link now redirects to its slug); read it whole. It retells CNC Kitchen's tests and gives no numbers of its own. | Guide | read | low 0.4 | proprietarynot read | Inserts and fastenersGeneral DFM | not assessed |
| K-Factor: Finding Torque Values for Bolted JointsHex Technology Hex Technology on the nut-factor method: T = K D F / 12 (ft-lb, in, lb), with K found by test (lower for PTFE-coated bolts), and the ASME PCC-1 (2019) Target Torque Index. Read: 2026-11-04: opened the article; read the nut-factor method, T = K D F / 12 (ft-lb, in, lb), how K is found by test, PTFE coatings and the ASME PCC-1 (2019) Target Torque Index it shows. unconfirmed T = K D F / 12 (T in ft-lb, D in in, F in lb); K is found by test, and PTFE-coated bolts take a lower K | Guide | read | low 0.4 | proprietarynot read | Inserts and fasteners | not assessed |
| Self-clinching nuts bulletin CL (PEM, hosted copy)PennEngineering PEM (hosted copy) PEM's self-clinching nut bulletin: nut types, the sheet hardness each takes (CLA aluminium nuts: HRB 50 / HB 82 or less) and the mounting-hole tables (+.003/-.000 in). Read: 2026-11-04: opened the bulletin PDF on the third-party host the record links; read the nut types, the sheet hardness limits and the hole tables. Not compared with pemnet.com's copy (it answers scripts with a bot check). unconfirmed CLA aluminium nuts for steel or aluminium sheet HRB 50 / HB 82 or less; hole +.003/-.000 in | Guide | readAuthors' claim: numbers stated, not measured | low 0.4 | proprietarynot read | Sheet metal and laserInserts and fasteners | not assessed |
| Tabs and Slots for Sheet Metal Part DesignFictiv · 2025 Tab and slot joint self-locates, no jigs; pairs with welding, rivets or bolts for retention. Read: 2026-10-31: opened the page (byline David Willson, 2025-11-20). Read tab width and length, slot clearance by process, corner radii, edge distance, tab spacing, distance from the bend tangent and kerf width. | Guide | read | low 0.4 | proprietarynot read | Sheet metal and laserInserts and fasteners | not assessed |
| Threaded Inserts with Heat Staking and Ultrasonic WeldingProtolabs Protolabs on putting threaded inserts into moulded parts by heat staking or ultrasonic insertion, and what it needs from the designer; no numbers. Read: 2026-11-04: opened the page; read it whole: heat staking and ultrasonic insertion into moulded parts, the inputs Protolabs needs. No numbers. | Guide | read | low 0.4 | proprietarynot read | Moulding and castingInserts and fasteners | not assessed |
| Welded Sheet Metal Parts Design GuidelinesPCBWay PCBWay on welded sheet-metal parts: weld types, bend before welding, tabs 3-5 times the thickness with 0.1-0.15 mm clearance per side (0.05-0.1 mm per side for powder coat). Read: 2026-11-04: opened the article; read the weld types, the bending-first rule and the tab-and-slot and coating allowances. unconfirmed Tab width 3 to 5 x the sheet thickness, 0.1-0.15 mm clearance per side; 0.05-0.1 mm per side for powder coat | Guide | read | low 0.4 | proprietarynot read | Sheet metal and laserInserts and fasteners | not assessed |
| AISIS100.jl, AISI S100 cold-formed steel design in Juliaruntosolve (github.com/runtosolve) · 2026 Read: 2026-11-01: gh api (MIT, pushed 2026-10-15). It has welds, bolt bearing (J3.3.1) and shear rupture, with a test per equation; no screw (J4) or blind rivet (J5) connections. | Read source | read | unknown | not recorded | none stated | not assessed |
| Aluminum Design Manual 2020Aluminum Association · 2020 Read: 2026-11-01: opened the product page: released February 2020, 9 sections, covering structural design including mechanical connections. Contents not read. | Read source | read | unknown | not recorded | none stated | not assessed |
| Axial Strength and Mating Screw Recommended Tightening Torque for PEM Brand Self-clinching Nuts (Unified)PennEngineering (PEM) · 2021 Read: 2026-11-01: opened the sheet (© 2021, file dated 10_28_21). Read the S, CLS and SP rows: the least axial strength with a 180 ksi screw and the tightening torque by screw grade, assuming K = 0.20. The metric sheet was not found. | Read source | read | unknown | not recorded | none stated | not assessed |
| bd_warehousegithub.com/gumyr Read: 2026-10-31: gh api (Apache-2.0, pushed 2026-10-31). The LICENSE has no copyright line; the author is the owner's GitHub profile name. | Read source | read | unknown | not recorded | none stated | not assessed |
| Blueprints (blue-prints), structural engineering calculations in PythonBlueprints-org (github.com/Blueprints-org) · 2026 Read: 2026-11-01: gh api and PyPI (MIT, blue-prints 0.8.0, with tests). It implements EN 1993-1-8 Table 3.4: bolt and rivet shear, bearing with edge distance and pitch, tension and punching; not the thin-sheet blind rivets of EN 1993-1-3, nor al… | Read source | read | unknown | not recorded | none stated | not assessed |
| CL Self-Clinching Nuts (Bulletin CL)PennEngineering (PEM) · 2026 Read: 2026-11-01: opened the PDF (© 2026, back page dated 10/13/26), text and the table pages rendered. Read CL-4 and CL-5 (S, SS, CLS, CLSS, SP dimensions by shank code: minimum sheet, hole +0.08 mm / +0.003 in, edge distance), CL-9 (materials,… | Read source | read | unknown | not recorded | none stated | not assessed |
| Countersink Design Best PracticesSendCutSend · 2022 Read: 2026-10-31: opened the page (2022-12-05, no byline). Read the example edge distance (0.781 in on 5052) and the bend rule (half the die width from the bend centre). | Read source | read | unknown | not recorded | none stated | not assessed |
| DELTA PT: a superior thread-former for plastics (brochure version 250422)Bulten AB (made under licence from EJOT) · 2025 Read: 2026-11-01: the 8-page PDF opened (version 250422). cadagent.mechanical.bosses takes the DELTA PT dimensions (p. 4) and boss recommendations (p. 7). | Read source | read | unknown | not recorded | none stated | not assessed |
| Engineering Polymers: Joining Techniques - A Design GuideCovestro LLC Read: 2026-11-01: the 38-page PDF opened. It prints no date; its file metadata says 2015-10-30, the date cadagent.formulas cites it by. | Read source | read | unknown | not recorded | none stated | not assessed |
| European Technical Assessment ETA-13/0255 (GESIPA blind rivets)Deutsches Institut für Bautechnik (DIBt), for GESIPA Blindniettechnik GmbH · 2022 Read: 2026-11-01: opened the PDF (issued 2022-07-22). Read Annex 1 (design resistance Rd = α·Rk/γM, γM = 1.25) and annexes 3–5, 7, 8, 14–16 and 25–28 (characteristic shear, tension and joint values per rivet and sheet thickness, including PolyGr… | Read source | read | unknown | not recorded | none stated | not assessed |
| F PEMSERT Self-Clinching Flush Nuts (Bulletin F)PennEngineering (PEM) · 2026 Read: 2026-11-01: opened the PDF (© 2026, back page dated 10/19/26). Read F-3 (sheet from 1.5 mm / 0.060 in; shank codes by thickness, hole and edge distance), F-4 (materials) and F-6 (push-out and torque). The metric F4 table prints inch thread… | Read source | read | unknown | not recorded | none stated | not assessed |
| Fastener Design Manual (NASA Reference Publication 1228)NASA Lewis Research Center · 1990 Read: 2026-11-01: the NTRS record opened. cadagent.mechanical.printed_joints cites pp. 6-8 (locking methods: locknuts, jam nuts, nylon patches, spring lock washers). | Read source | read | unknown | not recorded | none stated | not assessed |
| FH Self-Clinching Studs and Pins (Bulletin FH)PennEngineering (PEM) · 2026 Read: 2026-11-01: opened the PDF (© 2026, back page dated 10/19/26). Read FH-5 (FH, FHS, FHA dimensions: minimum sheet, hole, head, edge distance), FH-17 (materials and sheet hardness), FH-29 (FH and FHS push-out, torque-out, pull-through and nu… | Read source | read | unknown | not recorded | none stated | not assessed |
| How do you assemble 3D-printed parts? Practical tips on threads & screws for 3D printingProtolabs Network (formerly Hubs) Read: 2026-10-31: opened the page; read the wall-around-a-thread rule, inserts, embedded nuts (0.2 mm offset), self-tapping pilot holes (75–80 % engagement), tapping, and printed threads (avoid below M5 in FDM). | Read source | read | unknown | not recorded | none stated | not assessed |
| ISO 10642 Fasteners - Hexagon socket countersunk head screws with reduced loadabilityISO · 2026 Read: 2026-10-31: opened the store pages. The current edition is ISO 10642:2026 (valid from 2026-03-04); the 2019 edition is withdrawn and the 2004 edition before it. Content not read. | Read source | read | unknown | not recorded | none stated | not assessed |
| ISO 15977 to ISO 15984: Open end blind rivets with break pull mandrel and protruding or countersunk headISO (ISO/TC 2) · 2002 Read: 2026-11-01: iso.org blocks scripts, so the eight standards were read on ISO/TC 2's committee pages: all published 2002-11 and confirmed 2023. 15977 AlA/St protruding head 2.4–6.4 mm; 15978 AlA/St countersunk; 15979 St/St protruding; 15980 … | Read source | read | unknown | not recorded | none stated | not assessed |
| ISO 273:1979 Fasteners - Clearance holes for bolts and screwsISO · 1979 Read: 2026-10-31: opened the store page; read the title and scope (fine, medium and coarse series for 1-150 mm threads). Content not read. | Read source | read | unknown | not recorded | none stated | not assessed |
| ISO 68-1:1998 ISO general purpose screw threads - Basic profile - Part 1: Metric screw threadsISO · 1998 Read: 2026-11-01: read the Estonian standards body's listing: this edition was withdrawn on 2023-10-05 and replaced by ISO 68-1:2023 (Basic and design profiles). cadagent.formulas still cites 1998; content not read. | Read source | read | unknown | not recorded | none stated | not assessed |
| ISO 898-1:2013 Mechanical properties of fasteners made of carbon steel and alloy steel - Part 1: Bolts, screws and studs with specified property classesISO · 2013 Read: 2026-11-01: read the Estonian standards body's listing: valid since 2013-01-14. Content not read. | Read source | read | unknown | not recorded | none stated | not assessed |
| LOCTITE 243 Technical Data SheetHenkel · 2025 Read: 2026-11-01: the PDF opened (5 pages). cadagent.mechanical.printed_joints cites its April 2025 edition's General Information: not normally recommended on plastics, particularly thermoplastics, for stress cracking. | Read source | read | unknown | not recorded | none stated | not assessed |
| Marson Rivets, Rivet Nuts and Installation Tools (AFS6010 0518)Arconic Fastening Systems (Marson; now Howmet) · 2018 Read: 2026-11-01: opened the DigiKey-hosted PDF (© 2018). Read the design information p. 4 (rated strength times count meets the load, compatible body material, grip covers the stack, oversize holes lose strength, button head twice the body), th… | Read source | read | unknown | not recorded | none stated | not assessed |
| Metallic Materials Properties Development and Standardization (MMPDS)Battelle · 2026 Read: 2026-11-01: opened mmpds.org, which says MMPDS-2026 is released. MIL-HDBK-5J (2003) was cancelled in favour of MMPDS-01 (everyspec listing). Contents not read. | Read source | read | unknown | not recorded | none stated | not assessed |
| MIL-STD-889C: Dissimilar MetalsUS Department of Defense (NAVAIR) · 2016 Read: 2026-11-01: opened the PDF (22 August 2016; superseded by 889D in 2021). Read 5.1.3 (the small fastener the same metal or more noble), 5.1.6, 5.2a (stainless screws in aluminium acceptable with sealed faying edges, not the reverse), Table … | Read source | read | unknown | not recorded | none stated | not assessed |
| NASA-STD-5020B: Requirements for Threaded Fastening Systems in Spaceflight HardwareNASA · 2021 Read: 2026-11-01: opened the NASA standards page: document date 2021-08-06, revalidated 2026-01-05, PDF linked. The PDF was not read. | Read source | read | unknown | not recorded | none stated | not assessed |
| New Criteria for Self-Loosening of Fasteners Under VibrationSAE Transactions 78, SAE technical paper 690055 · 1969 Read: 2026-11-01: the DOI, title, author and year checked against Crossref. | Read source | read | unknown | not recorded | none stated | not assessed |
| PEM self-clinching nuts types S, SS, CLS, CLSS, SP: catalogue pages CLS-M3-1 and SP-M3-1PennEngineering (PEM) Read: 2026-10-31: opened the CLS-M3-1 and SP-M3-1 pages. Read minimum sheet thickness 1.00 mm, hole in sheet 4.22 +0.08 mm, minimum hole centreline to edge 4.8 mm, and the sheet hardness limits (CLS, 300-series stainless: HRB 70 / HB 125 or less… | Read source | read | unknown | not recorded | none stated | not assessed |
| POP Avdel Breakstem Riveting Systems (NA P3200 02 2015)Stanley Engineered Fastening (POP, Avdel) · 2015 Read: 2026-11-01: opened the 128-page PDF from Stanley Engineered Fastening's resource library. Read p. 5 (same material as the parent to reduce corrosion; hole per data sheet), Avex pp. 77–78, Monobolt p. 93 and Interlock pp. 100–103 (grip, hol… | Read source | read | unknown | not recorded | none stated | not assessed |
| POP Blind Riveting Systems (catalogue P3100 Rev. D)Emhart Teknologies (Stanley Engineered Fastening) · 2012 Read: 2026-11-01: opened the 68-page PDF (© 2012, Rev. D 6/12; the URL redirects to Stanley's CDN). Read the design guidelines pp. 10–12 (edge distance at least twice the diameter for full strength, open end down to 0.020 in aluminium, closed en… | Read source | read | unknown | not recorded | none stated | not assessed |
| ranf_thread_fast, threaded fastener and bolted joint analysisgithub.com/tpw809 · 2026 Read: 2026-11-01: gh api (MIT, pushed 2026-10-10, not on PyPI). Read the README and the example reproducing NASA TM-2012-217454. It covers bolt preload, separation and strength, not sheet bearing or rivets. | Read source | read | unknown | not recorded | none stated | not assessed |
| Self-tapping screws for thermoplastics (COV00073610)Covestro Deutschland AG · 2016 Read: 2026-11-01: the 4-page PDF opened; it is COV00073610, edition 2016-04, as cadagent.formulas cites it. | Read source | read | unknown | not recorded | none stated | not assessed |
| SFF-8201 2.5" Form Factor Drive Dimensions, Rev 3.4SNIA SFF Technology Affiliate · 2018 Read: 2026-10-31: opened the PDF (Rev 3.4, 2018-01-19). Read the change history (side holes mandatory and bottom holes optional for 7 mm drives), the M3 thread, the side-hole positions (A50 14.00, A51 90.60 mm) and the maximum fastener penetrati… | Read source | read | unknown | not recorded | none stated | not assessed |
| SFF-8301 3.5" Form Factor Drive Dimensions, Rev 1.9SNIA SFF Technology Affiliate · 2018 Read: 2026-10-31: opened the PDF (Rev 1.9, 2018-01-19); read the fastener penetration limits (2.39 and 3.56 mm). | Read source | read | unknown | not recorded | none stated | not assessed |
| Shigley's Mechanical Engineering Design, 10th edition ISBN 978-0-07-339820-4McGraw-Hill Education · 2015 Read: 2026-11-01: the title and ISBN checked against the Open Library record (it gives the printing year 2014; the book's copyright year is 2015, as cadagent.formulas cites it). The sections are cited where they are used: cadagent.formulas, and … | Read source | read | unknown | not recorded | none stated | not assessed |
| Shigley's Mechanical Engineering Design, 8th edition ISBN 978-0-07-312193-2McGraw-Hill · 2008 Read: 2026-11-01: only the edition and ISBN were checked (Open Library); the book was not opened. cadagent.mechanical.inserts (key rothbart) takes its screw-in-brass-nut friction from this edition's table after H. A. Rothbart, Mechanical Design … | Read source | read | unknown | not recorded | none stated | not assessed |
| SO Self-Clinching Standoffs (Bulletin SO)PennEngineering (PEM) · 2026 Read: 2026-11-01: opened the PDF (© 2026, back page dated 6/12/26). Read SO-3 and SO-4 (SO and BSO dimensions: minimum sheet, hole, edge distance), SO-9 (materials and sheet hardness) and SO-12 (push-out, torque-out, pull-through and the most sc… | Read source | read | unknown | not recorded | none stated | not assessed |
| The Design Engineer's Fastener GuidePennEngineering (PEM) · 2022 Read: 2026-11-01: downloaded the 20-page PDF (the download-centre page asks for a form; the direct link does not) and skimmed it. A general overview of fastening methods; no rule is taken from it. | Read source | read | unknown | not recorded | none stated | not assessed |
| The Self Clinching Fastener HandbookPennEngineering (PEM) · 2025 Read: 2026-11-01: opened the 20-page PDF (© 2025, created 2025-11-14) through pdftotext. Read HB-4 (the sheet softer than the fastener, about 20 points of Rockwell B), HB-5 (general push-out and torque-out for -1 shank nuts; push-out about 5–10 … | Read source | read | unknown | not recorded | none stated | not assessed |
| 3M Scotch-Weld Structural Adhesive Selection Guide3M Structural adhesive selection with joint design guidance: favor shear, tension, compression over peel and cleavage. Note: Snippet via summary unconfirmed Optimum bond line about 125-500 micrometres | Guide | snippet only | low 0.4 | proprietarynot read | Inserts and fasteners | not assessed |
| EJOT DELTA PT flyerEJOT Thread-forming screw for plastics with boss diagram: pilot hole, counterbore and hole depth relative to screw diameter. Note: Thermoplastic boss data; verify for PA6-CF corroborated Hole 0.8 x d1 (up to 0.88 x d1); counterbore 1.05 x d1; hole depth 2 x d1 | Guide | snippet onlyAuthors' claim: numbers stated, not measured | low 0.4 | proprietarynot read | Inserts and fastenersMoulding and casting | not assessed |
| Fastening Technology: self-tapping screws for plasticBossard Why plastic needs special thread profiles; low-torque forming screw; boss material thickness advice. Note: Snippet only unconfirmed Material around hole 1.8-2.5 mm thick | Guide | snippet only | low 0.4 | proprietarynot read | Inserts and fasteners | not assessed |
| Guidelines for Hardware InsertionSendCutSend PEM hardware placement: minimum hole centre to edge or bend per SKU, hole-to-hole spacing, resized mount holes. Note: Values per SKU in catalog; check part. unconfirmed Catalog min hole centerline to edge or bend typically about 0.23 to 0.31 in | Guide | snippet only | low 0.4 | proprietarynot read | Sheet metal and laserInserts and fasteners | not assessed |
| Heat Inserts and 3D-printing - a guidePrintables (community author) Soldering-iron heat-set insert method for FDM: temperature, orientation, keeping iron perpendicular. Note: Community article conflicting Iron at 240 C; insert larger end up; iron perpendicular to hole | Guide | snippet only | low 0.4 | proprietarynot read | 3D printingInserts and fasteners | not assessed |
| How to Install Key-Locking InsertsMcMaster-Carr Key-locking insert install notes; tap size can differ from insert thread; comparable to Keensert. Note: Snippet had no figures | Guide | snippet only | low 0.4 | proprietarynot read | Inserts and fastenersCNC machining | not assessed |
| PEM blind fastener bulletin B (Mouser copy)PennEngineering PEM (hosted copy) B-series blind fastener data including push-out and torque-out values in 5052 aluminum and steel sheet. Note: Table values not visible in snippet | Guide | snippet onlyAuthors' claim: numbers stated, not measured | low 0.4 | proprietarynot read | Sheet metal and laserInserts and fasteners | not assessed |
| PEM self-clinching blind fasteners B/BS datasheetPennEngineering (PEM) Catalog datasheet gives hole centre to edge and sheet hardness limits for self-clinching blind fasteners. Note: Per-part datasheet, not a design guide. unconfirmed Min hole C/L to edge .19 in; sheet hardness HRB 70 or less (#4-40 stainless) | Guide | snippet onlyAuthors' claim: numbers stated, not measured | low 0.4 | proprietarynot read | Sheet metal and laserInserts and fasteners | not assessed |
| POP Rivet Design GuidelinesStanley Engineered Fastening POP rivet design guidelines listing size, material and spacing variables; no spacing numbers in snippet. Note: URL contains spaces and port as shown. | Guide | snippet only | low 0.4 | proprietarynot read | Inserts and fasteners | not assessed |
| POP Rivet Selection FactorsStanley Engineered Fastening Blind rivet selection: grip range, shear and tensile ratings, effect of oversize holes. Note: Snippet via summary unconfirmed Oversized hole lowers shear and tensile strength | Guide | snippet only | low 0.4 | proprietarynot read | Inserts and fastenersSheet metal and laser | not assessed |
| Threaded Holes (Xometry)Xometry Defines deep threaded hole and advises adding a boss for extra thread thickness. Note: Snippet only unconfirmed Deep threaded hole: thread depth over 1.5x thread diameter. | Guide | snippet only | low 0.4 | proprietarynot read | CNC machiningInserts and fasteners | not assessed |
Role is the survey's judgement of a record within its class (leader, reference, lessons, context): not a quality grade. A single source, a search snippet, or untested judgement is what “low” means.