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M3 Unbrako Socket Head Cap Screws ISO 4762 in Black Oxide High Tensile Steel Class 12.9

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 M3
thread pitch thread pitch 0.50
dk max. maximum head diameter 5.5
k max. maximum head height 3.0
s drive size 2.5
b minimum thread length 18
t recess depth 1.3
Standard ISO 4762 (DIN 912)
all dimensions in millimetres (mm)
Unbrako Engineering Guide
< View All Sizes
Description Sale Qtys Qty Price Breakdown Despatch Estimate
M3 x 5mm Unbrako Socket Head Cap Screw Full Thread in Black Oxide
WF47906 - 352 in stock
single screw for £1.34
or box of 100 for £20.29
or bulk of 500 for £87.50
£0.00  
M3 x 6mm Unbrako Socket Head Cap Screw Full Thread in Black Oxide
WF47907 - 992 in stock
sachet of 2 for £1.46
or box of 200 for £22.17
or bulk of 1000 for £95.32
£0.00  
M3 x 8mm Unbrako Socket Head Cap Screw Full Thread in Black Oxide
WF47908 - 724 in stock
sachet of 2 for £1.65
or box of 150 for £18.76
or bulk of 750 for £81.33
£0.00  
M3 x 10mm Unbrako Socket Head Cap Screw Full Thread in Black Oxide
WF47909 - 2171 in stock
sachet of 2 for £1.66
or box of 150 for £18.90
or bulk of 750 for £81.92
£0.00  
M3 x 12mm Unbrako Socket Head Cap Screw Full Thread in Black Oxide
WF47910 - 526 in stock
sachet of 2 for £1.81
or box of 150 for £20.71
or bulk of 750 for £89.36
£0.00  
M3 x 14mm Unbrako Socket Head Cap Screw Full Thread in Black Oxide
WF47911 - 1057 in stock
sachet of 2 for £2.08
or box of 150 for £23.77
or bulk of 750 for £101.87
£0.00  
M3 x 15mm Unbrako Socket Head Cap Screw Full Thread in Black Oxide
WF47912 - 762 in stock
sachet of 2 for £2.06
or box of 150 for £23.56
or bulk of 750 for £101.06
£0.00  
M3 x 16mm Unbrako Socket Head Cap Screw Full Thread in Black Oxide
WF47913 - 400 in stock
sachet of 2 for £2.14
or box of 150 for £24.41
or bulk of 750 for £104.59
£0.00  
M3 x 20mm Unbrako Socket Head Cap Screw Full Thread in Black Oxide
WF47914 - 230 in stock
single screw for £1.26
or box of 100 for £19.24
or bulk of 500 for £83.33
£0.00  
M3 x 25mm Unbrako Socket Head Cap Screw Part Thread in Black Oxide
WF47915 - 293 in stock
single screw for £1.46
or box of 80 for £17.80
or bulk of 400 for £77.40
£0.00  
M3 x 30mm Unbrako Socket Head Cap Screw Part Thread in Black Oxide
WF47916 - 543 in stock
single screw for £1.90
or box of 60 for £17.32
or bulk of 300 for £75.42
£0.00  
M3 x 35mm Unbrako Socket Head Cap Screw Part Thread in Black Oxide
WF47917 - 808 in stock
single screw for £1.99
or box of 60 for £18.20
or bulk of 300 for £79.04
£0.00  
single screw for £1.34
or box of 100 for £20.29
or bulk of 500 for £87.50
£0.00
 
sachet of 2 for £1.46
or box of 200 for £22.17
or bulk of 1000 for £95.32
£0.00
 
sachet of 2 for £1.65
or box of 150 for £18.76
or bulk of 750 for £81.33
£0.00
 
sachet of 2 for £1.66
or box of 150 for £18.90
or bulk of 750 for £81.92
£0.00
 
sachet of 2 for £1.81
or box of 150 for £20.71
or bulk of 750 for £89.36
£0.00
 
sachet of 2 for £2.08
or box of 150 for £23.77
or bulk of 750 for £101.87
£0.00
 
sachet of 2 for £2.06
or box of 150 for £23.56
or bulk of 750 for £101.06
£0.00
 
sachet of 2 for £2.14
or box of 150 for £24.41
or bulk of 750 for £104.59
£0.00
 
single screw for £1.26
or box of 100 for £19.24
or bulk of 500 for £83.33
£0.00
 
single screw for £1.46
or box of 80 for £17.80
or bulk of 400 for £77.40
£0.00
 
single screw for £1.90
or box of 60 for £17.32
or bulk of 300 for £75.42
£0.00
 
single screw for £1.99
or box of 60 for £18.20
or bulk of 300 for £79.04
£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 M3
thread pitch thread pitch 0.50
dk max. maximum head diameter 5.5
k max. maximum head height 3.0
s drive size 2.5
b minimum thread length 18
t recess depth 1.3
Standard ISO 4762 (DIN 912)
all dimensions in millimetres (mm)
Unbrako Engineering Guide
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