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

#3 flat head socket cap screw envelope

#3 flat head socket cap screw envelope: 82° cone from Ø5.74 mm (A max 0.226 in) to the Ø2.515 mm body over 1.85 mm (H max 0.073 in), hex socket 1/16 in across flats x 0.044 in deep (key engagement min), plain shank, example overall length head top to tip 0.25 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

size#3
TPI UNC / UNF48 / 56
body D max / abs. min (in)0.0990 / 0.0949
head A max / min (in)0.226 / 0.193
head height H max (in)0.073
hex socket (nominal)1/16 in
spline socket (nominal).072 in
key engagement min (in)0.044
cone height, computed (in)0.073
head dia x height max (mm, computed)5.74 x 1.85
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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