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Unit:inch

Unified Hexagon Ordinary Nuts

BS 1768 - 1963

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英标BS 1768 - 1963 BS1768 1768BS Unified Hexagon Ordinary Nuts
Thread Size
d
1/4 5/16 3/8 7/16 1/2 (9/16) 5/8 3/4
s max
min
m max
min
dw max
min
e max
0.4375 0.5 0.5625 0.6875 0.75 0.875 0.9375 1.125
0.4305 0.493 0.5545 0.6795 0.742 0.867 0.9295 1.115
0.224 0.271 0.333 0.38 0.442 0.489 0.552 0.651
0.214 0.261 0.323 0.37 0.432 0.479 0.542 0.631
0.421 0.483 0.545 0.668 0.730 0.855 0.918 1.100
0.411 0.473 0.535 0.658 0.720 0.845 0.908 1.090
0.505 0.577 0.650 0.794 0.866 1.010 1.083 1.300
Thread Size
d
7/8 1 1-1/8 1-1/4 (1-3/8) 1-1/2 1-3/4 2
s max
min
m max
min
dw max
min
e max
1.3125 1.5 1.6875 1.875 2.0625 2.25 2.625 3
1.3005 1.488 1.6575 1.83 2.0175 2.205 2.565 2.94
0.76 0.874 0.989 1.087 1.197 1.311 1.53 1.754
0.74 0.844 0.949 1.037 1.147 1.251 1.47 1.684
1.285 1.473 1.641 1.813 2.001 2.188 2.543 2.918
1.275 1.463 1.625 1.797 1.985 2.172 2.527 2.902
1.515 1.732 1.948 2.165 2.382 2.598 3.031 3.464
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