Equivalent Standards

l - length of bolt
d - the nominal diameter of the thread
s - size hex head turnkey
t - groove depth
dv - diameter of the hole

Dimensions of Hexagon Socket Set Screws with Cup Point

Dimensions	s	dv max
M 1.4	0.7	0.7
M 1.6	0.7	0.8
M 2	0.9	1
M 2.5	1.3	1.5
M 3	1.5	1.4
M 4	1.2	2
M 5	2.5	2.5
M 6	3	3
M 8	4	5
M 10	5	6
M 12	6	8
M 14	6	9
M 16	8	10
M 20	10	14
M 24	12	16