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3/4 socket head cap screw envelope

3/4 socket head cap screw envelope: head Ø28.57 mm (A max 1.125 in) x 19.05 mm (H max 0.750 in), hex socket 5/8 in across flats x 0.370 in deep (key engagement min), plain Ø19.050 mm shank (D max), example length under the head 2.0 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.

STEP STL free, CC BY 4.0 (credit "Xem Studio")

Dimensions

size3/4
TPI UNC / UNF10 / 16
body D max / min (in)0.7500 / 0.7406
head A max / min (in)1.125 / 1.107
head height H max / min (in)0.750 / 0.740
hex socket nominal5/8 in
key engagement T min (in)0.370
wall min (in)0.285
fillet transition dia max / min (in)0.828 / 0.801
top chamfer max (in)0.085
bottom chamfer max (in)0.015
basic thread length LT (in)2.000
D max (mm, computed)19.050
head dia x height max (mm, computed)28.57 x 19.05
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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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