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Hex weld nuts, DIN 929: M3–M16 pilot diameter, height, across flats, sheet thickness range

What are the dimensions of a DIN 929 hexagon weld nut, and what hole does an M8 weld nut need? · Standard part · basis: fasten.it's DIN 929 table (12/2013), cross-checked on m, s, e and the pilot diameter against GlobalFastener's DIN 929 table; numbers only

Also called: din 929 weld nut dimensions, m8 weld nut hole size, m6 hex weld nut size, m10 weld nut dimensions, din 929 m5 weld nut, hex weld nut m12 height, weld nut pilot hole m8 10.5, m4 weld nut, weld nut sheet thickness range

Exact dimensions. True size, with no tolerance added.

sizes
9 in table

Notes

  • Columns (mm) as fasten.it prints them: d thread, P pitch, d2 (tolerance d11, the projection / pilot diameter), m height (h14), s width across flats (h13), e across corners (min), d3 (H13, equal to d2 in every row, shown once), a sheet thickness range as a minimum to maximum. GlobalFastener's DIN 929 table agrees with fasten.it on m, s, e and d2 for every size M3 to M16 (e.g. M8: m 6.5, s 14, e 15.38, d2 10.5; M10: 8, 17, 18.74, 12.5). Its flattened layout was read with inferred column alignment, so only these four quantities were compared.
  • d2 is read as the diameter of the centring projection and d3 (equal to d2 in every row, with an H13 tolerance class) as the matching sheet-hole diameter; the page does not say so, so check a maker drawing. The projection heights (GlobalFastener h1 0.55 to 1.8, h2 0.25 to 1.0 max) and the weld projection geometry are not described well enough to draw. The standard covers coarse thread M3 to M16 and fine thread 8 to 16 mm, product grade A (fasten.it); GlobalFastener also lists a 7/16-20 UNF size, not tabulated here. Sizes in brackets, such as M14, are non-preferred (GlobalFastener).
  • No file: the weld projections and the underside shape are not published as numbers in the sources read. Rivet nuts (blind threaded inserts, no welding): rivet-nuts-flat-head. McMaster-Carr sells projection weld nuts with per-part STEP; the category is linked, not copied.

Hex weld nuts, DIN 929: M3–M16 pilot diameter, height, across flats… size chart

threadP (mm)d2 (pilot dia, d11)m (height, h14)s (across flats, h13)e mind3 (H13)a (sheet thickness)
M30.54.537.58.154.50.63–1.5
M40.763.599.8360.75–1.5
M50.8741010.9570.88–2
M61851112.0280.88–2.5
M81.2510.56.51415.3810.51–3
M101.512.581718.7412.51.25–4
M121.7514.8101920.9114.81.5–5
M14216.8112224.2716.82–6
M16218.8132426.5118.82–6

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

fasten.itDIN 929 hexagon weld nuts (12/2013): d2, m, s, e, d3, sheet thickness a, M3 to M16webReference page; numbers only
GlobalFastenerDIN 929 hexagon weld nuts: b, d1, d2, d3, e, h1, h2, m, s (max / min) M3 to M16 and 7/16-20 UNFwebReference page; column alignment inferred by the page
McMaster-CarrProjection weld nuts (free STEP/IGES per part, for your own design use; no redistribution)STEP, IGES, PDFMcMaster-Carr site terms: personal design use, no redistribution verify

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File coming

No downloadable true-size file yet: the published figures do not fix the whole shape, and Xem never guesses a number. A measured scan is planned; request it and it moves up.

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Plain text: sheet.txt · JSON: /api/geometry?object=weld-nuts-din-929

Schematic, not to scale.

Fits with

Hex nuts, M2–M8 (ISO 4032), isometric render of a generated part
Hex nuts, M2–M8 (ISO 4032)7 sizes★ 7 files
Hex nuts, M10 to M24 (ISO 4032 / DIN 934), isometric render of a generated part
Hex nuts, M10 to M24 (ISO 4032 / DIN 934)6 sizes★ 6 files
Rivet nuts (blind threaded inserts), flat head: hole size, grip range, body and flange dimensions, M3–M12 and #6-32 to 3/8-16, isometric render of a generated part
Rivet nuts (blind threaded inserts), flat head: hole size, grip range, body and flange dimensions, M3–M12 and #6-32 to 3/8-16131.7×32.1×3.0 mm★ 1 file
PEM self-clinching nuts (S, CLS, CLSS): hole size, minimum edge distance, nut diameter and height, M2–M12 and #2-56 to 3/8-24 + hole gauges, isometric render of a generated part
PEM self-clinching nuts (S, CLS, CLSS): hole size, minimum edge distance, nut diameter and height, M2–M12 and #2-56 to 3/8-24 + hole gauges98.2×25.0×3.0 mm★ 2 files
Hex flange nuts, DIN 6923: M3–M20 across flats, flange diameter, height, flange thickness + M5–M16 envelope files, isometric render of a generated part
Hex flange nuts, DIN 6923: M3–M20 across flats, flange diameter, height, flange thickness + M5–M16 envelope files34.5×34.5×16.0 mm★ 6 files

Questions

What hole size for an M8 DIN 929 weld nut?

d2 (read as the pilot) is 10.5 mm (d11); the nut is 6.5 mm high, 14 mm across flats, for sheet 1 to 3 mm (fasten.it).

What is the wrench size of an M10 weld nut?

s = 17 mm (e min 18.74), m = 8 mm.