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

#4 flat head socket cap screw envelope

#4 flat head socket cap screw envelope: 82° cone from Ø6.48 mm (A max 0.255 in) to the Ø2.845 mm body over 2.11 mm (H max 0.083 in), hex socket 1/16 in across flats x 0.055 in deep (key engagement min), plain shank, example overall length head top to tip 0.5 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

size#4
TPI UNC / UNF40 / 48
body D max / abs. min (in)0.1120 / 0.1075
head A max / min (in)0.255 / 0.218
head height H max (in)0.083
hex socket (nominal)1/16 in
spline socket (nominal).072 in
key engagement min (in)0.055
cone height, computed (in)0.082
head dia x height max (mm, computed)6.48 x 2.11
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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