Westfield Fasteners Ltd Logo
Westfield Fasteners Ltd Telephone: 01844201133, Email: enquiries@westfieldfasteners.co.uk
Home   /   UNF Bolts, Nuts and Washers   /   1/4 inch UNF Socket Head Countersunk Screws ASME B18. 3-2003 in Bright Zinc Plated (BZP) Steel

1/4 inch UNF Socket Head Countersunk Screws ASME B18. 3-2003 in Bright Zinc Plated (BZP) Steel

A countersunk headed screw conforming with ASME/ANSI B18.3, requiring a hex key (otherwise known as an Allen key) to fit. The countersunk head is typically used in conjunction with a countersunk hole providing a flush, snag free fit. Generally manufactured with a full thread, though occasionally some stock may include a partially threaded shank.
Image of UNF Socket Head Countersunk Screws ASME B18. 3-2003 in BZP image
technical drawing of UNF Socket Head Countersunk Screws ASME B18. 3-2003
Technical Summary
d nominal diameter 1/4
tpi threads per inch 28
dk head diameter 0.531
k head height 0.161
t recess depth 0.111
s drive size 5/32
Standard ASME B18.3
all dimensions in inches
Datasheet
< View All Sizes
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 Countersunk Screws ASME B18. 3-2003
Technical Summary
d nominal diameter 1/4
tpi threads per inch 28
dk head diameter 0.531
k head height 0.161
t recess depth 0.111
s drive size 5/32
Standard ASME B18.3
all dimensions in inches
Datasheet
FSB logo CBI logo