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

5/16 flat head socket cap screw envelope

5/16 flat head socket cap screw envelope: 82° cone from Ø16.66 mm (A max 0.656 in) to the Ø7.938 mm body over 5.03 mm (H max 0.198 in), hex socket 3/16 in across flats x 0.135 in deep (key engagement min), plain shank, example overall length head top to tip 1 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

size5/16
TPI UNC / UNF18 / 24
body D max / abs. min (in)0.3125 / 0.3053
head A max / min (in)0.656 / 0.600
head height H max (in)0.198
hex socket (nominal)3/16 in
spline socket (nominal).216 in
key engagement min (in)0.135
cone height, computed (in)0.198
head dia x height max (mm, computed)16.66 x 5.03
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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