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#4 socket head cap screw envelope

#4 socket head cap screw envelope: head Ø4.65 mm (A max 0.183 in) x 2.84 mm (H max 0.112 in), hex socket 3/32 in across flats x 0.051 in deep (key engagement min), plain Ø2.845 mm shank (D max), example length under the head 0.5 in (Xem's choice); no thread, top chamfer, fillet or socket cone

Exact dimensions. True size, no tolerance added. Threads are plain cylinders at the major diameter.

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Dimensions

size#4
TPI UNC / UNF40 / 48
body D max / min (in)0.1120 / 0.1075
head A max / min (in)0.183 / 0.176
head height H max / min (in)0.112 / 0.108
hex socket nominal3/32 in
key engagement T min (in)0.051
wall min (in)0.038
fillet transition dia max / min (in)0.130 / 0.118
top chamfer max (in)0.009
bottom chamfer max (in)0.008
basic thread length LT (in)—
D max (mm, computed)2.845
head dia x height max (mm, computed)4.65 x 2.84
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From the full sheet

Socket head cap screws, inch #0 to 1-1/2 (ASME B18.3): head, hex socket, key engagement — full size table + models #0 to 1: every size, notes, mating features and sources. What are the head diameter, head height and hex key size of a #4-40, #8-32, 1/4-20, 5/8-11 or 1 in socket head cap screw?

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