BS 325 - 1947 Black Cup Aquare Neck Bolts

Unit: inch

英标BS 325 - 1947 BS325 325BS Black Cup Aquare Neck Bolts

Screw Thread
d

1/4

5/16

3/8

7/16

1/2

5/8

3/4

7/8

1

PP	BSW
d_k
k
k₁

20	18	16	14	12	11	10	9	8
0.562	0.703	0.844	0.984	1.125	1.406	1.688	1.969	2.25
0.125	0.156	0.188	0.25	0.281	0.375	0.438	0.5	0.562
0.188	0.234	0.281	0.328	0.375	0.469	0.562	0.656	0.75

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