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Heavy Hex Structural Bolts (ASTM F3125 F3125M)

ASME B 18.2.6 - 2019

Display drawing:

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