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M4 Unbrako Socket Head Countersunk Screws ISO 10642 in Black Oxide Class 12+ High Tensile Steel

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. Please note that due to the nature of the surface finish on Unbrako products, some surface corrosion may be evident. This does not affect the performance of the product. Property class of 12.9.
Unbrako Socket Head Countersunk Screws ISO 10642 in BO image
Unbrako logo
technical drawing of Unbrako Socket Head Countersunk Screws ISO 10642
Technical Summary
d nominal diameter M4
thread pitch thread pitch 0.70
dk head diameter 8.0
k head height 2.30
s drive size 2.50
b minimum thread length 14
t recess depth 1.80
e width across corners 0.70
Standard ISO 10642 (DIN 7991)
Material Black Oxide Class 12+ High Tensile Steel
all dimensions in millimetres (mm)
Unbrako Engineering Guide
< View All Sizes
Description Sale Qtys Qty Price Breakdown Despatch Estimate
Unbrako Socket Head Csk Screw Full Thread M4 x 8mm in Black Oxide
WF48265
£0.00
Unbrako Socket Head Csk Screw Full Thread M4 x 10mm in Black Oxide
WF48266
£0.00
Unbrako Socket Head Csk Screw Full Thread M4 x 12mm in Black Oxide
WF48267
£0.00
Unbrako Socket Head Csk Screw Full Thread M4 x 15mm in Black Oxide
WF48268
£0.00
Unbrako Socket Head Csk Screw Full Thread M4 x 16mm in Black Oxide
WF48269
£0.00
Unbrako Socket Head Csk Screw Full Thread M4 x 18mm in Black Oxide
WF48270
£0.00
Unbrako Socket Head Csk Screw Full Thread M4 x 20mm in Black Oxide
WF48271
£0.00
Unbrako Socket Head Csk Screw Full Thread M4 x 25mm in Black Oxide
WF48272
£0.00
Unbrako Socket Head Csk Screw Full Thread M4 x 30mm in Black Oxide
WF48273
£0.00
Unbrako Socket Head Csk Screw Part Thread M4 x 35mm in Black Oxide
WF48274
£0.00
Unbrako Socket Head Csk Screw Part Thread M4 x 40mm in Black Oxide
WF48275
£0.00
Prices are subject to quantity discounts based on a sliding scale. Enter the desired quantity in the relevant box in the table above. This will automatically calculate a line price indicating the applicable rate for the quantities selected. All prices shown exclude VAT.
Unbrako logo
technical drawing of Unbrako Socket Head Countersunk Screws ISO 10642
Technical Summary
d nominal diameter M4
thread pitch thread pitch 0.70
dk head diameter 8.0
k head height 2.30
s drive size 2.50
b minimum thread length 14
t recess depth 1.80
e width across corners 0.70
Standard ISO 10642 (DIN 7991)
Material Black Oxide Class 12+ High Tensile Steel
all dimensions in millimetres (mm)
Unbrako Engineering Guide