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M20 x 45mm Unbrako Socket Head Cap Screw Full Thread in Black Oxide - ISO 4762 (DIN 912)

Also known as an allen screw or allen bolt, or simply a cap screw. Socket head cap screws are a modern machine threaded fastener, an alternative to the standard hexagon headed bolt. The geometry of the hex drive mechanism means that these internal contact surfaces are protected from external damage. A hex or allen key is therefore required to fit these fasteners. Conforming to ISO 4762 or DIN 912, UNBRAKO® socket head caps are manufactured to be stronger than other size for size high tensile versions. 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 Cap Screws ISO 4762 in BO-12.9 image
Unbrako logo
technical drawing of Unbrako Socket Head Cap Screws ISO 4762
Technical Summary
d nominal diameter M20
thread pitch thread pitch 2.50
dk max. maximum head diameter 30.0
k max. maximum head height 20.0
s drive size 17
b minimum thread length 52
t recess depth 10.0
Standard ISO 4762 (DIN 912)
all dimensions in millimetres (mm)
Unbrako Engineering Guide
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Description Sale Qtys Qty Price Breakdown Despatch Estimate
M20 x 45mm Unbrako Socket Head Cap Screw Full Thread in Black Oxide
WF48118 - 28 in stock
single screw for £6.22
or box of 5 for £20.01
or bulk of 25 for £82.58
£0.00  
M20 x 45mm Unbrako Socket Head Cap Screw Full Thread in Black Oxide   WF48118 - 28 in stock
single screw for £6.22
or box of 5 for £20.01
or bulk of 25 for £82.58
£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 Cap Screws ISO 4762
Technical Summary
d nominal diameter M20
thread pitch thread pitch 2.50
dk max. maximum head diameter 30.0
k max. maximum head height 20.0
s drive size 17
b minimum thread length 52
t recess depth 10.0
Standard ISO 4762 (DIN 912)
all dimensions in millimetres (mm)
Unbrako Engineering Guide
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