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M8 Socket Head Countersunk Screws ISO 10642 (DIN 7991) in Bright Zinc Plated (BZP) Class 10 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. Generally manufactured with a full thread, though occasionally some stock may include a partially threaded shank. The head diameter is slightly larger than that of the equivalent DIN 965 Phillips or Pozi driven screw.
Socket Head Countersunk Screws ISO 10642 (DIN 7991) in BZP-10.9 image
technical drawing of Socket Head Countersunk Screws ISO 10642 (DIN 7991)
Technical Summary
d nominal diameter M8
thread pitch thread pitch 1.25
dk max. maximum head diameter 16.43
dk min. minimum head diameter 15.24
k max. maximum head height 4.960
k min. minimum head height 4.366
s max. maximum drive size 5.140
s min. drive min. 5.020
b minimum thread length 28
t max. maximum recess depth 3.20
t min. minimum recess depth 2.90
e width across corners 5.723
Standard ISO 10642 (DIN 7991)
all dimensions in millimetres (mm)
html graphic ISO 10642 Standard HTML
pdf graphic ISO 10642 Standard PDF
< View All Sizes
Description Sale Qtys Qty Price Breakdown Despatch Estimate
M8 x 12mm Socket Head Countersunk Screw in Bright Zinc Plate 10.9
WF19892
£0.00
M8 x 16mm Socket Head Countersunk Screw in Bright Zinc Plate 10.9
WF19893
£0.00
M8 x 20mm Socket Head Countersunk Screw in Bright Zinc Plate 10.9
WF19894
£0.00
M8 x 25mm Socket Head Countersunk Screw in Bright Zinc Plate 10.9
WF19895
£0.00
M8 x 30mm Socket Head Countersunk Screw in Bright Zinc Plate 10.9
WF19896
£0.00
M8 x 35mm Socket Head Countersunk Screw in Bright Zinc Plate 10.9
WF19897
£0.00
M8 x 40mm Socket Head Countersunk Screw in Bright Zinc Plate 10.9
WF19898
£0.00
M8 x 45mm Socket Head Countersunk Screw in Bright Zinc Plate 10.9
WF19899
£0.00
M8 x 50mm Socket Head Countersunk Screw in Bright Zinc Plate 10.9
WF19900
£0.00
M8 x 60mm Socket Head Countersunk Screw in Bright Zinc Plate 10.9
WF19901
£0.00
M8 x 70mm Socket Head Countersunk Screw in Bright Zinc Plate 10.9
WF34530
£0.00
M8 x 80mm Socket Head Countersunk Screw in Bright Zinc Plate 10.9
WF19902
£0.00
M8 x 100mm Socket Head Countersunk Screw in Bright Zinc Plate 10.9
WF20290
£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.
technical drawing of Socket Head Countersunk Screws ISO 10642 (DIN 7991)
Technical Summary
d nominal diameter M8
thread pitch thread pitch 1.25
dk max. maximum head diameter 16.43
dk min. minimum head diameter 15.24
k max. maximum head height 4.960
k min. minimum head height 4.366
s max. maximum drive size 5.140
s min. drive min. 5.020
b minimum thread length 28
t max. maximum recess depth 3.20
t min. minimum recess depth 2.90
e width across corners 5.723
Standard ISO 10642 (DIN 7991)
all dimensions in millimetres (mm)
html graphic ISO 10642 Standard HTML
pdf graphic ISO 10642 Standard PDF
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