Home / UNC Bolts, Nuts and Washers / Socket Head Button Screw UNC 4-40 x 3/8 inch in Zinc Plated Steel - ASME B18.3

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Socket Head Button Screw UNC 4-40 x 3/8 inch in Zinc Plated Steel - ASME B18.3

A popular and attractive socket head screw, typically used where aesthetics are important, or where a lower profile domed finish is required. The hex drive is generally smaller than other hex driven ranges and thus the ultimate tightening torque is reduced. Manufactured to ASME/ANSI B18.3, and always fully threaded.

technical drawing of UNC Socket Head Button Screws ASME B18.3-2012

Technical Summary

nominal diameter

4-40

tpi

threads per inch

head diameter

0.213

head height

0.052

recess depth

0.035

drive size

1/16

Standard

ASME B18.3

all dimensions in inches

Datasheet

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Description	Sale Qtys	Qty	Price	Breakdown	Despatch Estimate
Socket Head Button Screw UNC 4-40 x 3/8 inch in Zinc Plated Steel WF27769			£1.39

Socket Head Button Screw UNC 4-40 x 3/8 inch in Zinc Plated Steel WF27769

£1.39

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