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Library › Hardware › Flat head socket cap screws, inch (ASME B18.3, 82° countersunk) #0…

1/2 flat head socket cap screw envelope

1/2 flat head socket cap screw envelope: 82° cone from Ø23.83 mm (A max 0.938 in) to the Ø12.700 mm body over 6.38 mm (H max 0.251 in), hex socket 5/16 in across flats x 0.172 in deep (key engagement min), plain shank, example overall length head top to tip 1.5 in (Xem's choice); no thread, spline option, socket cone or point

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

size1/2
TPI UNC / UNF13 / 20
body D max / abs. min (in)0.5000 / 0.4919
head A max / min (in)0.938 / 0.872
head height H max (in)0.251
hex socket (nominal)5/16 in
spline socket (nominal).372 in
key engagement min (in)0.172
cone height, computed (in)0.252
head dia x height max (mm, computed)23.83 x 6.38
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From the full sheet

Flat head socket cap screws, inch (ASME B18.3, 82° countersunk) #0 to 1-1/2: head, hex socket, key engagement + models #0 to 1: every size, notes, mating features and sources. What are the head diameter, head height, hex key and countersink angle of a 1/4-20 or #10-24 flat head socket cap screw?

Other sizes