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UNF Socket Head Cap Screws ASME B18. 3-2003 5/16 inch in A2 Stainless 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 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 thread diameter 5/16
b minimum thread length 1.12
dk head diameter 0.469
k max. maximum head height 0.312
t min. minimum recess depth 0.151
s drive size 1/4
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 5/16 x 1/2 inch in A2 Stainless
(WF17435)
£0.00
Socket Head Cap (Allen) Screw UNF 5/16 x 5/8 inch in A2 Stainless
(WF17436)
£0.00
Socket Head Cap (Allen) Screw UNF 5/16 x 3/4 inch in A2 Stainless
(WF10240)
£0.00
Socket Head Cap (Allen) Screw UNF 5/16 x 7/8 inch in A2 Stainless
(WF17437)
£0.00
Socket Head Cap (Allen) Screw UNF 5/16 x 1 inch in A2 Stainless
(WF10241)
£0.00
Socket Head Cap (Allen) Screw UNF 5/16 x 1-1/4 inch in A2 Stainless
(WF17438)
£0.00
Socket Head Cap (Allen) Screw UNF 5/16 x 1-1/2 inch in A2 Stainless
(WF10242)
£0.00
Socket Head Cap (Allen) Screw UNF 5/16 x 1-3/4 inch in A2 Stainless
(WF17439)
£0.00
Socket Head Cap (Allen) Screw UNF 5/16 x 2 inch in A2 Stainless
(WF17440)
£0.00
Socket Head Cap (Allen) Screw UNF 5/16 x 2-1/4 inch in A2 Stainless
(WF17441)
£0.00
Socket Head Cap (Allen) Screw UNF 5/16 x 2-1/2 inch in A2 Stainless
(WF17442)
£0.00
Socket Head Cap (Allen) Screw UNF 5/16 x 2-3/4 inch in A2 Stainless
(WF36200)
£0.00
Socket Head Cap (Allen) Screw UNF 5/16 x 3 inch in A2 Stainless
(WF36131)
£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.
technical drawing of UNF Socket Head Cap Screws ASME B18. 3-2003
Technical Summary
d thread diameter 5/16
b minimum thread length 1.12
dk head diameter 0.469
k max. maximum head height 0.312
t min. minimum recess depth 0.151
s drive size 1/4
Standard ASME B18.3-2003,ASTM F837-13e1(CW)
Material A2 Stainless Steel
all dimensions in millimetres (mm)
datasheet