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ASTM A563 A194 A194M

ASME B 18.2.6 - 2019 

Heavy Hex Nuts for Use With Structural Bolts

(ASTM A563 / A194 / A194M)

 

Screw Thread
d
1/2 5/8 3/4 7/8 1 1-1/8 1-1/4 1-3/8 1-1/2
PP UNC
s Nominal Size
max
min
e max
min
m Nominal Size
max
min
13 11 10 9 8 7 7 6 6
7/8 1-1/16 1-1/4 1-7/16 1-5/8 1-13/16 2 2-3/16 2-3/8
0.875 1.062 1.25 1.438 1.625 1.812 2 2.188 2.375
0.85 1.031 1.212 1.394 1.575 1.756 1.938 2.119 2.3
1.01 1.227 1.443 1.66 1.876 2.093 2.309 2.526 2.742
0.969 1.175 1.382 1.589 1.796 2.002 2.209 2.416 2.622
31/64 39/64 47/64 55/64 63/64 1-7/64 1-7/32 1-11/32 1-15/32
0.504 0.631 0.758 0.885 1.012 1.139 1.251 1.378 1.505
0.464 0.587 0.71 0.833 0.956 1.079 1.187 1.31 1.433
①,Chemical and mechanical properties of heavy hex nuts shall conform to ASTM A 563 grades or ASTM A194/ A194M,
Grade 2H. The nut's grade shall have a proofload capacity equal to or greater than the ultimate tensie strength of the bolt
it will be used with.
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