'?) CommunityCAD
CC-1S07380-DS-M8 rev A Size datasheet - M8
ISO 7380-1 M8 hexagon socket button head
screw
Size datasheet: this size's values with their levels, its lengths, conventions and sources.
Simplified - M8x16, front view, 2.5:1 Threaded -
Sym. Dimension
P Thread pitch
dk Head diameter
k Head height
dL Flat top diameter
rf Dome radius
s Socket across flats
e Socket across corners
t Socket depth
w Wall under socket
rs Underhead fillet, part thread rt Underhead fillet, full thread ds Shank diameter
da Transition diameter
dw Bearing face diameter
b Thread length
d1 Basic minor diameter (end face) tap Tap drill (method d - P)
a End chamfer angle, deg
M8x16, front view, 2.5:1
Thread M8 x 1.25, ISO metric coarse, right hand
Lengths 13 generated, | = 12-80
Files 26 STEP AP214 (simplified + threaded)
Value 1.25
13.785 13.57-14.00
4.25 4.10-4.40
7.7 ref
7.70 7.45-7.95
5.080 5.020-5.140
2 5.723 2 2.60 2 1.05
Iv
0.40
Iv
0.70
7.89 7.78-8
£ 9.2 2 13.07 28 ref
6.6468 6.75 l1 +2
< 50 2-1
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.
ISO 7380-1:2011 - ISO 4753:2011 (ends) - ISO 68-1/ ISO 261 (thread)
Button head socket screw - M8 - both detail levels - Dimensions in mm - CC-BY 4.0, IronPixel Labs LLC
Modeled from cited sources; not certified. Found an error? Use the feedback section on the part page.
Page 1/2 spec 82d0e3f1e4052a4ec559d0F9Fd7b4cF7b5772671
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CC-1S07380-DS-M8 rev A Size datasheet - M8
'?) CommunityCAD
Lengths | Thread Is Ig Part key 12 tothe head - - iso7380-m8x12 16 tothe head - - is07380-m8x16 20 tothe head - - iso7380-m8x20 25 tothe head - - iso7380-m8x25 30 tothe head - - iso07380-m8x30 35 tothe head = - iso7380-m8x35 40 partial 2 5.75 <$ 12 is07380-m8x40 45 partial 2 10.75 <$ 17 iso7380-m8x45 50 partial > 15.75 < 22 iso7380-m8x50 55 partial 2 20.75 < 27 iso7380-m8x55 60 partial 2 25.75 < 32 iso7380-m8x60 70 partial 2 35.75 < 42 iso7380-m8x70 80 partial 2 45.75 < 52 iso7380-m8x80
Is = plain shank (min), Ig = bearing face to the first full thread (max). To the head: full thread up to 3P from the bearing face. Listed by one source only, not generated: | = 10, 14, 18, 22, 65, 90, 100.
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.
e Head: flat top dL at k, dome rf centred on the axis down to dk, rim at dk; no knurl.
« Thread (threaded level): ISO 68-1 basic profile; full thread to Ig, quarter-turn fade toward the head. Threaded to the head: a core at d1 with rt. « 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-iso7380-1 fasten.it 2026-10-25 Ob30bee8c94e
fasteners-eu-iso7380-1 fasteners.eu 2026-10-25 786a69c06968
amesweb-iso7380-1 AMESweb 2026-10-25 4f662340a35a
amesweb-iso7380-1-Lengths AMESweb 2026-10-25 67d0b9F58c9a
iso7380-1-2011-sample ISO (preview published by iTeh n/a 9ca554d7cb13 (kept outside the repo) Standards)
iso7380-1-2011-sample-lengths ISO (preview published by iTeh n/a 9ca554d7cb13 (kept outside the repo) Standards)
The whole series (verification map, corrections, drawings): CC-ISO7380-Ds.
ISO 7380-1:2011 - ISO 4753:2011 (ends) - ISO 68-1/ ISO 261 (thread) Page 2/2 Button head socket screw - M8 - both detail levels - Dimensions in mm - CC-BY 4.0, IronPixel Labs LLC spec 82d0e3f1e4052a4ec559d0F9Fd7b4cF7b5772671
Modeled from cited sources; not certified. Found an error? Use the feedback section on the part page.