DIN 1587 hexagon domed cap nut (acorn nut), M4
Size drawing - M4 values on the views - enlarged 5:1
mw 2 2.32*
t=5.50 5.26-5.74
B = 22.5°* 15°-30°
@ = 120°*
Sym. Dimensi
Thread pitch
Hexagon height
e2= 7.66
View from above
Overall height
Dome diameter
Dome radius
Thread run-out
Tap drill (method
Width across flats
Width across corners
Wrenching height
8 7.64-8
$6.5
3.25 ref
5.50 5.26-5.74
Bore depth (full diameter)
< 1.4
Wall, bore to dome top
Bearing face diameter
Countersink diameter
Corner chamfer angle, deg
Countersink angle, deg
Basic minor diameter (crests)
D-P)
'? CommunityCAD
TITLE
Size drawing, M4
Source levels
Main value = the modeled value (nominal, else the middle of min-max).
Grey under a value = its min-max, where the source gives both.
s / 2 = the source gives only that limit, modeled at it. ref = reference.
L2 = the standard itself (or its complete free preview, or the maker's drawing).
L1 = two or more independent sources agree: the release gate.
LO = one source only: printed amber and marked *.
c = a source value was corrected; the datasheet says how.
House convention = a detail no source dimensions, drawn to a stated house rule. This size's values: L2 1-L116- LO 5. Notes
s: modeled at its nominal (= s max, the wrench size); s min has one free source (ADR 0072).
e is not modeled on its own: the regular hexagon gives e = 2s/V3 from the modeled s, = e min.
Chamfer circles: (dw min + s) / 2 at the bearing face, (dk + s) / 2 at the dome end.
w min: wall on the axis, checked; mw min: checked at mid-flat. x: threaded level only.
Bore end: 120° drill point at the tap drill where it leaves w min, else flat (DO2).
STANDARDS FOLLOWED DIN 1587:2000 - ISO 4759-1 (m min) - ISO 68-1/ ISO 261 (thread)
FAMILY / DETAIL Acorn nut - M4
SHEET REV
CC-DIN1587-SZ-M4 A
SCALE PROJECTION
5:1
UNITS
Dimensions in mm
SPEC VERSION 82d0e3f1e4052a4ecS59d0F9Fd7b4cF7b5772671
LICENSE CC-BY 4.0 IronPixel Labs LLC
PAGE
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Modeled from cited sources; not certified. Found an error? Use the feedback section on the part page.