ASME/ANSI B 18.3.1M - 1986 (R2008)Dimensions Of Metric Socket Head Cap Screws

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(Non-preferred) dimensions in parentheses.

20
25
30

ASME/ANSI B 18.3.1M - 1986 (R2008)

Unit: mm

ASME/ANSI B 18.3.1M - 1986 R2008 Dimensions Of Metric Socket Head Cap Screws

Unit: mm

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B18.3.1M-T1_M1.6X20

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ASME/ANSI B 18.3.1M - 1986 R2008 Dimensions Of Metric Socket Head Cap Screws

Thread Size
d

M1.6

P	Thread Pitch
d_s	max
d_s	min
d_k	max
d_k	min
k	max
k	min
c	max
s	Nominal Size
t	min
h	min
d_a	max
d_a	min
b	min

0.35
1.6
1.46
3
2.87
1.6
1.52
0.16
1.5
0.8
0.54
2
1.8
15.2