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Heavy Hex Structural Bolts (ASTM A 325 ASTM A 490)

ASME B 18.2.6 - 2006

Display drawing:

Screw Thread 3/4 1-1/8 1 1-1/2 1/2 5/8 1-3/8 3/8 7/8 1-1/4
Nominal Diameter 3/4 1-1/8 1 1-1/2 1/2 5/8 1-3/8 3/8 7/8 1-1/4
P 10 7 8 6 13 11 6 16 9 7
Ds Max 0.75 1.125 1 1.5 0.5 0.625 1.375 0.375 0.875 1.25
Ds Min 0.729 1.098 0.976 1.47 0.482 0.605 1.345 0.36 0.852 1.223
S Nominal 1-1/4 1-13/16 1-5/8 2-3/8 7/8 1-1/16 2-3/16 11/16 1-7/16 2
S Max 1.25 1.812 1.625 2.375 0.875 1.062 2.188 0.688 1.438 2
S Min 1.212 1.756 1.575 2.3 0.85 1.031 2.119 0.669 1.394 1.938
E Max 1.443 2.093 1.876 2.742 1.01 1.227 2.526 0.794 1.66 2.309
E Min 1.383 2.002 1.796 2.622 0.969 1.175 2.416 0.763 1.589 2.209
K Nominal 1/2 3/4 43/64 1 11/32 27/64 29/32 1/4 37/64 27/32
K Max 0.483 0.718 0.627 0.974 0.323 0.403 0.878 0.243 0.563 0.813
K Min 0.455 0.658 0.591 0.902 0.302 0.378 0.81 0.226 0.531 0.749
R Max 0.06 0.09 0.09 0.09 0.03 0.06 0.09 0.03 0.06 0.09
R Min 0.02 0.03 0.03 0.03 0.01 0.02 0.03 0.01 0.02 0.03
BL 1.75 2.5 2.25 3.25 1.25 1.5 3 1 2 2.75
HW max 0.025 0.035 0.035 0.035 0.025 0.025 0.035 0.025 0.035 0.035
HW min 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015