ASME B18.3 #4-40×3/4 in button head socket cap screw, 19.05 mm long

standard-defined representative, no unique vendor SKU · button-head

Use it

(import "parts/fastener-imperial/B18.3-BHCS-No4-40x0.75in.ik" as p)

In a design on ink: ask your agent for it by name, or by what it must be.

length-inch	0.75
length-mm	19.05

underhead bearing plane z=0, head +z, tip -z

Where it connects: each frame sits on the face it connects by, z out of the part, in the part's own coordinates.

Of	Frame	Origin	x	z
part	seat	(0, 0, 0)	(1, 0, 0)	(0, 0, -1)

All 7 numbers in its record