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Socket Head Cap (Allen) Screw UNF 6-40 x 1/4 inch in A2 Stainless - ASME B18.3/ASTM F837(CW)

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 ASME/ANSI B18.3, the contact surfaces of this screw or bolt are protected from external damage. Generally manufactured with a partial thread beyond a certain length and nominal diameter combination, but occasionally some stock may include a fully threaded shank at the same combination.
Image of UNF Socket Head Cap Screws ASME B18. 3-2003 in A2 image
technical drawing of UNF Socket Head Cap Screws ASME B18. 3-2003
Technical Summary
d nominal diameter 6-40
b minimum thread length 0.75
dk head diameter 0.226
k max. maximum head height 0.138
t min. minimum recess depth 0.064
s drive size 7/64
Standard ASME B18.3-2003,ASTM F837-13e1(CW)
Material A2 Stainless Steel
all dimensions in millimetres (mm)
datasheet
Description Sale Qtys Qty Price Breakdown Despatch Estimate
Socket Head Cap (Allen) Screw UNF 6-40 x 1/4 inch in A2 Stainless
(WF36064)
£3.56
Socket Head Cap (Allen) Screw UNF 6-40 x 1/4 inch in A2 Stainless   (WF36064)
£3.56
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technical drawing of UNF Socket Head Cap Screws ASME B18. 3-2003
Technical Summary
d nominal diameter 6-40
b minimum thread length 0.75
dk head diameter 0.226
k max. maximum head height 0.138
t min. minimum recess depth 0.064
s drive size 7/64
Standard ASME B18.3-2003,ASTM F837-13e1(CW)
Material A2 Stainless Steel
all dimensions in millimetres (mm)
datasheet