Home / UNF Bolts, Nuts and Washers / Socket Head Countersunk Screw UNF 1/4 x 1/2 inch in Zinc Plated Steel - ASME B18.3

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Socket Head Countersunk Screw UNF 1/4 x 1/2 inch in Zinc Plated Steel - 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 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

nominal diameter

1/4

tpi

threads per inch

head diameter

0.531

head height

0.161

recess depth

0.111

drive size

5/32

Standard

ASME B18.3

all dimensions in inches

Datasheet

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Description	Sale Qtys	Qty	Price	Breakdown	Despatch Estimate
Socket Head Countersunk Screw UNF 1/4 x 1/2 inch in Zinc Plated Steel WF29435			£2.40

Socket Head Countersunk Screw UNF 1/4 x 1/2 inch in Zinc Plated Steel WF29435

£2.40

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