Westfield Fasteners Ltd Logo
Westfield Fasteners Ltd Telephone: 01844201133, Email: enquiries@westfieldfasteners.co.uk
Home   /   Bolts and Machine Screws - Metric   /   M20 Unbrako Socket Head Cap Screws ISO 4762 in Black Oxide Class 12+ High Tensile Steel

M20 Unbrako Socket Head Cap Screws ISO 4762 in Black Oxide Class 12+ High Tensile Steel

Also known as an Allen screw or Allen bolt, or simply a cap screw. Socket Head Cap screws are a more modern alternative standard machine fastener to the standard hexagon headed bolt or setscrew, as found on much modern machinery. A hex key (otherwise known as an Allen key) is required to fit these fasteners. Conforming to ISO 4762 or DIN 912, the contact surfaces of this screw or bolt are protected from external damage. 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 Cap Screws ISO 4762 in BO 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)
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 Cap (Allen) Screw Full Thread M20 x 30mm in Black
WF48115
£0.00
Unbrako Socket Head Cap (Allen) Screw Full Thread M20 x 35mm in Black
WF48116
£0.00
Unbrako Socket Head Cap (Allen) Screw Full Thread M20 x 40mm in Black
WF48117
£0.00
Unbrako Socket Head Cap (Allen) Screw Full Thread M20 x 45mm in Black
WF48118
£0.00
Unbrako Socket Head Cap (Allen) Screw Full Thread M20 x 50mm in Black
WF48119
£0.00
Unbrako Socket Head Cap (Allen) Screw Full Thread M20 x 55mm in Black
WF48120
£0.00
Unbrako Socket Head Cap (Allen) Screw Full Thread M20 x 60mm in Black
WF48121
£0.00
Unbrako Socket Head Cap (Allen) Screw Full Thread M20 x 65mm in Black
WF48122
£0.00
Unbrako Socket Head Cap (Allen) Screw Full Thread M20 x 70mm in Black
WF48123
£0.00
Unbrako Socket Head Cap (Allen) Screw Part Thread M20 x 75mm in Black
WF48124
£0.00
Unbrako Socket Head Cap (Allen) Screw Part Thread M20 x 80mm in Black
WF48125
£0.00
Unbrako Socket Head Cap (Allen) Screw Part Thread M20 x 90mm in Black
WF48126
£0.00
Unbrako Socket Head Cap (Allen) Screw Part Thread M20 x 100mm in Black
WF48127
£0.00
Unbrako Socket Head Cap (Allen) Screw Part Thread M20 x 110mm in Black
WF48128
£0.00
Unbrako Socket Head Cap (Allen) Screw Part Thread M20 x 120mm in Black
WF48129
£0.00
Unbrako Socket Head Cap (Allen) Screw Part Thread M20 x 130mm in Black
WF48130
£0.00
Unbrako Socket Head Cap (Allen) Screw Part Thread M20 x 140mm in Black
WF48131
£0.00
Unbrako Socket Head Cap (Allen) Screw Part Thread M20 x 150mm in Black
WF48132
£0.00
Unbrako Socket Head Cap (Allen) Screw Part Thread M20 x 160mm in Black
WF48133
£0.00
Unbrako Socket Head Cap (Allen) Screw Part Thread M20 x 180mm in Black
WF48134
£0.00
Unbrako Socket Head Cap (Allen) Screw Part Thread M20 x 200mm in Black
WF48135
£0.00
Unbrako Socket Head Cap (Allen) Screw Part Thread M20 x 220mm in Black
WF48136
£0.00
Unbrako Socket Head Cap (Allen) Screw Part Thread M20 x 240mm in Black
WF48137
£0.00
Unbrako Socket Head Cap (Allen) Screw Part Thread M20 x 260mm in Black
WF48138
£0.00
Unbrako Socket Head Cap (Allen) Screw Part Thread M20 x 280mm in Black
WF48139
£0.00
Unbrako Socket Head Cap (Allen) Screw Part Thread M20 x 300mm in Black
WF48140
£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)
Material Black Oxide Class 12+ High Tensile Steel
all dimensions in millimetres (mm)
Unbrako Engineering Guide