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Hex Bolts

ASME B 18.2.1 - 2010

Display drawing:

Screw Thread 5/16
D 0.3125
P 18
Ds Max 0.324
Ds Min 0.298
S Nominal 1/2
S Max 0.5
S Min 0.484
E Max 0.577
E Min 0.552
K Nominal 7/32
K Max 0.235
K Min 0.195
R Max 0.030
R Min 0.010
B L≤6 0.875
B L>6 1.125