CC-DIN7984-DS-M4 revA Size datasheet - M4
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DIN 7984 M4 low head socket cap screw
Size datasheet: this size's values with their levels, its lengths, conventions and sources.
Thread M4 x 0.7, ISO metric coarse, right hand Lengths 10 generated, | = 6-40 Files 20 STEP AP214 (simplified + threaded) Simplified - M4x20, front view, 2.5:1 Threaded - M4x20, front view, 2.5:1 Sym. Dimensi Value Level P Thread pitch 0.7 L1 - 3 dk Head diameter 6.89 L1 - 3 6.78-7 k Head height 2.73 L1 - 3 2.66-2.8 s Socket across flats 2.56 L1- 3 2.52-2.6 e Socket across corners > 2.87 L1- 3 t Socket depth 2.3 L1-4 2.18-2.42 Vv Head top chamfer < 0.4% lo -1 r Underhead fillet radius 0.275* lo -1 0.2-0.35 ds Shank diameter 3.91 L1 - 3 3.82-4 da Transition diameter < 4.7 La - 2 dw Bearing face diameter > 6.2* lo-1 b Thread length 14 ref L1-4 di Basic minor diameter (end face) 3.2422 L1-2 tap Tap drill (method d - P) 3.3 La +2
a End chamfer angle, deg < 50
Modeled value: nominal, else the midpoint of min-max. s / =: only that limit is given, modeled at the limit. * amber: one source (LO). c: a source value was corrected. Level - independent sources.
DIN 7984:2022 - ISO 4753:2011 (ends) - ISO 68-1/ ISO 261 (thread) Page 1/2 Low head socket cap screw - M4 - both detail levels - Dimensions in mm - CC-BY 4.0, lronPixel Labs LLC spec 82d0e3f1e4052a4ec559d0F9Fd7b4cF7b5772671
Modeled from cited sources; not certified. Found an error? Use the feedback section on the part page.
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CC-DIN7984-DS-M4 revA Size datasheet - M4
'?) CommunityCAD
Lengths | Thread Is Ig Part key 6 tothe head - - din7984-m4x6 8 tothe head - - din7984-m4x8 10 tothe head - - din7984-m4x10 12 tothe head - - din7984-m4x12 16 tothe head - - din7984-m4x16 20 tothe head - - din7984-m4x20 25 partial 27.5 < 11 din7984-m4x25 30 partial 212.5 $16 din7984-m4x30 35. partial > 17.5 < 21 din7984-m4x35 40 partial 2 22.5 $ 26 din7984-m4x40 Is = plain shank (min), Ig = bearing face to the first full thread (max). To the head: full thread up to the printed Ig max from the bearing face. Is and Ig are one source (fasteners.eu), or past its table Ig = | - b, Is = Ig - 5P (owner decision #823); both LO. Listed by one source only, not generated: |= 14,18.
Conventions
« End: ISO 4753 chamfered end (CH), end face at d1, chamfer at the angle limit.
« Socket: regular hexagon at the modeled s, sharp corners, one corner on +X, flat floor at t.
« Head: plain cylinder at dk, 45° top chamfer at v max, underside edge rounded above dw min; the same on both levels. « Thread (threaded level): ISO 68-1 basic profile; full thread to Ig, quarter-turn fade toward the head.
« Values given only as a limit are modeled at that limit. Features the standard does not dimension are house conventions.
Sources
Source Publisher Retrieved sha256
amesweb-tap-drill AMESweb 2026-10-23 e6501cc1414a
pule-tap-drill CommunityCAD 2026-10-23 625b582c306e
pule-basic-minor CommunityCAD 2026-10-23 00329692204
iso4753-2011-sample ISO (preview published by iTeh n/a 7526d25f9381 (kept outside the repo) Standards)
fasten-it-din7984 fasten.it 2026-10-25 6d7c2d071779
fasteners-eu-din7984 fasteners.eu 2026-10-25 Oca229b3badf
fasteners-eu-din7984-lengths fasteners.eu 2026-10-25 Oca229b3badf
pule-din7984-1g CommunityCAD 2026-10-27 12fded2béaca
globalfastener-din7984 globalfastener.com (Internet Archive 2026-10-25 lebfc356fcb2 copy, captured 2026-05-21)
aspen-din7984 Aspen Fasteners 2026-10-25 a89117360Fd6
aspen-din7984-pages Aspen Fasteners 2026-10-26 2c952dad2f07
The whole series (verification map, corrections, drawings): CC-DIN7984-DS.
DIN 7984:2022 - ISO 4753:2011 (ends) - ISO 68-1/ ISO 261 (thread) Page 2/2 Low head socket cap screw - M4 - both detail levels - Dimensions in mm - CC-BY 4.0, lronPixel Labs LLC spec 82d0e3f1e4052a4ec559d0F9Fd7b4cF7b5772671
Modeled from cited sources; not certified. Found an error? Use the feedback section on the part page.