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Unbrako Socket Head Countersunk Screw Part Thread M20 x 160mm in Black Oxide - ISO 10642 (DIN 7991)

A countersunk headed screw conforming with ISO 10642 or DIN 7991, requiring a hex key (otherwise known as an Allen key) to fit. The countersunk head is typically used in conjunction with a countersunk hole providing a flush, snag free fit. The head diameter is slightly larger than that of the equivalent DIN 965 Phillips or Pozi driven screw. UNBRAKO® branded and manufactured to be stronger than the other size for size high tensile versions. Includes a precision hex socket for maximum key engagement. Property class of 12.9.
Unbrako Socket Head Countersunk Screws ISO 10642 in BO image
technical drawing of Unbrako Socket Head Countersunk Screws ISO 10642
Technical Summary
d thread diameter M20
dk head diameter 36
k head height 8.5
s drive size 12.0
b minimum thread length 46
t recess depth 5.9
e width across corners 13.72
p thread pitch 2.50
Standard ISO 10642
Material Black oxide high tensile steel class 12+
all dimensions in millimetres (mm)
Unbrako Engineering Guide
Description Sale Qtys Qty Price Breakdown Despatch Estimate
Unbrako Socket Head Countersunk Screw Part Thread M20 x 160mm in Black Oxide £24.56
Unbrako Socket Head Countersunk Screw Part Thread M20 x 160mm in Black Oxide
£24.56
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technical drawing of Unbrako Socket Head Countersunk Screws ISO 10642
Technical Summary
d thread diameter M20
dk head diameter 36
k head height 8.5
s drive size 12.0
b minimum thread length 46
t recess depth 5.9
e width across corners 13.72
p thread pitch 2.50
Standard ISO 10642
Material Black oxide high tensile steel class 12+
all dimensions in millimetres (mm)
Unbrako Engineering Guide
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