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M12 Unbrako Durlok Hexagon Flange Screws in Black Oxide Class 12+ High Tensile Steel

Unbrako Durlok® self locking, anti vibration hex head flange bolts. These are serrated flanged hex head bolts, which can be paired with the Unbrako Durlok® self locking serrated flanged nut. They both have a high tensile strength of 12.9 and a black oxide/self coloured finish. These heavy duty fasteners are suitable for situations where vibration and jarring occurs and where the joint is subject to high loads. They can be reused, as they are unlikely to be damaged by the adjoining surfaces. Durlok® Bolts are manufactured from alloy steel and are through hardened to give the same hardness from the tooth surface to the core. Durlok® Fasteners can be used at high temperatures up to 300°C.
Unbrako Durlok Hexagon Flange Screws in BO image
Unbrako logo
technical drawing of Unbrako Durlok Hexagon Flange Screws
Technical Summary
d nominal diameter M12
dc flange diameter 25.00
e min. minimum width across corners 19.01
k head height 11.00
k1 dimension 1 4.00
k2 dimension 2 1.90
s drive size 17.00
Standard ISO 1665 (DIN 6921)
Material Black Oxide Class 12+ High Tensile Steel
all dimensions in millimetres (mm)
datasheet
Unbrako Engineering Guide
Description Sale Qtys Qty Price Breakdown Despatch Estimate
M12 x 20mm Unbrako Durlok Flange Bolt Hex Head in Black
WF59473
£0.00
M12 x 25mm Unbrako Durlok Flange Bolt Hex Head in Black
WF59474
£0.00
M12 x 30mm Unbrako Durlok Flange Bolt Hex Head in Black
WF59475
£0.00
M12 x 35mm Unbrako Durlok Flange Bolt Hex Head in Black
WF59476
£0.00
M12 x 40mm Unbrako Durlok Flange Bolt Hex Head in Black
WF59477
£0.00
M12 x 45mm Unbrako Durlok Flange Bolt Hex Head in Black
WF59478
£0.00
M12 x 50mm Unbrako Durlok Flange Bolt Hex Head in Black
WF59479
£0.00
M12 x 55mm Unbrako Durlok Flange Bolt Hex Head in Black
WF59480
£0.00
M12 x 60mm Unbrako Durlok Flange Bolt Hex Head in Black
WF59481
£0.00
M12 x 70mm Unbrako Durlok Flange Bolt Hex Head in Black
WF59482
£0.00
M12 x 80mm Unbrako Durlok Flange Bolt Hex Head in Black
WF59483
£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 Durlok Hexagon Flange Screws
Technical Summary
d nominal diameter M12
dc flange diameter 25.00
e min. minimum width across corners 19.01
k head height 11.00
k1 dimension 1 4.00
k2 dimension 2 1.90
s drive size 17.00
Standard ISO 1665 (DIN 6921)
Material Black Oxide Class 12+ High Tensile Steel
all dimensions in millimetres (mm)
datasheet
Unbrako Engineering Guide