Home   /   UNC Bolts, Nuts and Washers   /   Socket Head Countersunk Screw UNC 1/2 x 4 inch in A4 Stainless - ASME B18.3

Socket Head Countersunk Screw UNC 1/2 x 4 inch in A4 Stainless - ASME B18.3

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 UNC Socket Head Countersunk Screws ASME B18.3-2012 in A4 image
technical drawing of UNC Socket Head Countersunk Screws ASME B18.3-2012
Technical Summary
d nominal diameter 1/2
tpi threads per inch 13
dk head diameter 0.869
k head height 0.251
s drive size 5/16
Standard ASME B18.3
Material A4 Stainless Steel
all dimensions in inches
datasheet
Description Sale Qtys Qty Price Breakdown Despatch Estimate
Socket Head Countersunk Screw UNC 1/2 x 4 inch in A4 Stainless
(WF25280)
£45.74
Socket Head Countersunk Screw UNC 1/2 x 4 inch in A4 Stainless   (WF25280)
£45.74
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 UNC Socket Head Countersunk Screws ASME B18.3-2012
Technical Summary
d nominal diameter 1/2
tpi threads per inch 13
dk head diameter 0.869
k head height 0.251
s drive size 5/16
Standard ASME B18.3
Material A4 Stainless Steel
all dimensions in inches
datasheet