Westfield Fasteners Ltd Logo
Westfield Fasteners Ltd Telephone: 01844201133, Email: enquiries@westfieldfasteners.co.uk
Home   /   UNF Bolts, Nuts and Washers   /   5/16 inch UNF Socket Head Cap Screws ASME B18. 3-2003 in Bright Zinc Plated (BZP) Steel

5/16 inch UNF Socket Head Cap Screws ASME B18. 3-2003 in Bright Zinc Plated (BZP) 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 BZP image
technical drawing of UNF Socket Head Cap Screws ASME B18. 3-2003
Technical Summary
d nominal diameter 5/16
tpi threads per inch 24
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 B18.8
all dimensions in inches
Datasheet
< View All Sizes
Description Sale Qtys Qty Price Breakdown Despatch Estimate
Socket Head Cap (Allen) Screw UNF 5/16 x 1/2 inch in Zinc Plated Steel
WF29004
£0.00
Socket Head Cap (Allen) Screw UNF 5/16 x 5/8 inch in Zinc Plated Steel
WF29005
£0.00
Socket Head Cap (Allen) Screw UNF 5/16 x 3/4 inch in Zinc Plated Steel
WF29006
£0.00
Socket Head Cap (Allen) Screw UNF 5/16 x 7/8 inch in Zinc Plated Steel
WF29007
£0.00
Socket Head Cap (Allen) Screw UNF 5/16 x 1 inch in Zinc Plated Steel
WF29008
£0.00
Socket Cap (Allen) Screw UNF 5/16 x 1-1/4 inch in Zinc Plated Steel
WF29009
£0.00
Socket Cap (Allen) Screw UNF 5/16 x 1-1/2 inch in Zinc Plated Steel
WF29010
£0.00
Socket Cap (Allen) Screw UNF 5/16 x 1-3/4 inch in Zinc Plated Steel
WF29011
£0.00
Socket Head Cap (Allen) Screw UNF 5/16 x 2 inch in Zinc Plated Steel
WF29012
£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 nominal diameter 5/16
tpi threads per inch 24
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 B18.8
all dimensions in inches
Datasheet
FSB logo CBI logo