Hex flange nuts, DIN 6923: M3–M20 across flats, flange diameter, height, flange thickness + M5–M16 envelope files — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/flange-nuts-din-6923/ (sheet CC BY 4.0) Basis: Westfield Fasteners' DIN 6923 table (M5 to M20) and Kanebridge's sheet (M3 to M12); the two agree on s, m and the flange diameter wherever both give a value; six envelope files Catalog version: 2026-10-20 Overall (mm): length 34.5, width 34.5, height 16.0 - DIN 6923 is the hexagon nut with a plain (non-serrated) flange. Westfield columns (mm): p pitch; c flange thickness (min); da bearing inner diameter (min / max); dc flange diameter (max); dw outer bearing diameter (min); e across corners (min); m nut height (max / min); s width across flats (max / min). Sizes in brackets are reference only: the page says M3 and M4 are not made to DIN 6923 and gives no bearing diameters or heights for them. - Kanebridge's sheet (F across flats max / min, H overall height max / min, B flange diameter max) agrees with Westfield on s, m and the flange diameter for M5 to M12 (e.g. M8: 13, 8.0 / 7.6, 17.9; M12: 18, 12.0 / 11.6, 26.0). Kanebridge prints M3 and M4 values (5.5 / 4.0 / 8.0 and 7.0 / 4.65 / 10.0) that agree with Westfield's reference-only figures for the across-flats size and (M4) height, but its M3 flange diameter is 8.0 against 7.8 and the page does not state units. - Files are Xem-drawn envelopes of sizes M5, M6, M8, M10, M12 and M16: a hexagon of width across flats s max, a circular flange of dc max by c min at the base, overall height m max, plain bore at the nominal thread diameter. The flange-to-body transition, chamfers and the serrated-flange variant are not modelled. Flange thickness c is a minimum, so a real flange may be thicker. - ISO 4161 and the serrated flange (DIN 6923 with serration) are not tabulated here. McMaster-Carr sells DIN 6923 flange nuts with per-part STEP; the category is linked, not copied. source thread p (mm) c min da min / max dc max dw min e min m (height) max / min s (across flats) max / min Westfield (reference only) (M3) 0.5 — — 7.8 — 6.33 3.8 5.5 Westfield (reference only) (M4) 0.7 — — 10 — 7.66 4.65 7 Westfield M5 0.8 1 5 / 5.75 11.8 9.8 8.79 5 / 4.7 8 / 7.78 Westfield M6 1 1.1 6 / 6.75 14.2 12.2 11.05 6 / 5.7 10 / 9.78 Westfield M8 1.25 1.2 8 / 8.75 17.9 15.8 14.38 8 / 7.6 13 / 12.73 Westfield M10 1.5 1.5 10 / 10.8 21.8 19.6 16.64 10 / 9.6 15 / 14.73 Westfield M12 1.75 1.8 12 / 13 26 23.8 20.03 12 / 11.6 18 / 17.73 Westfield M14 2 2.1 14 / 15.1 29.9 27.6 23.36 14 / 13.3 21 / 20.67 Westfield M16 2 2.4 16 / 17.3 34.5 31.9 26.75 16 / 15.3 24 / 23.67 Westfield M20 2.5 3 20 / 21.6 42.8 39.9 32.95 20 / 18.9 30 / 29.67 Kanebridge M3 0.5 — — 8 — — 4 / 3.4 5.5 / 5.3 Kanebridge M4 0.7 — — 10 — — 4.65 / 4.2 7 / 6.78 Kanebridge M5 0.8 — — 11.8 — — 5 / 4.7 8 / 7.78 Kanebridge M6 1 — — 14.2 — — 6 / 5.7 10 / 9.78 Kanebridge M8 1.25 — — 17.9 — — 8 / 7.6 13 / 12.73 Kanebridge M10 1.5 — — 21.8 — — 10 / 9.6 15 / 14.73 Kanebridge M12 1.75 — — 26 — — 12 / 11.6 18 / 17.73 Files elsewhere (not hosted by Xem Studio; license as stated by the publisher): - Westfield Fasteners: DIN 6923 hexagon flange nuts: c, da, dc, dw, e, m, s, r, M5 to M20 ((M3) and (M4) reference only) — web — Publisher's page; dimensions are facts — https://www.westfieldfasteners.co.uk/Standards/Nut-HexFlgPln-M.html - Kanebridge (fastenersresource.com): DIN 6923 hex flange nuts M3 to M12: pitch, F across flats, H overall height, B flange diameter — web — Maker data sheet; numbers only — https://fastenersresource.com/sites/default/files/products/kanebridge/techsheets/MetDin6923.pdf - McMaster-Carr: DIN 6923 flange nuts (free STEP/IGES per part, for your own design use; no redistribution) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution [verify license at link] — https://www.mcmaster.com/din-6923-nuts Free files (CC BY 4.0, Xem Studio; STEP + STL, 6 parts): https://xemstudio.com/files/hardware/flange-nuts-din-6923/index.json API: https://xemstudio.com/api/geometry?object=flange-nuts-din-6923