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Twist-Off-Type Tension Control Structural Bolts: Heavy Hex Head Configurations (ASTM F 1852 / ASTM F 2280)

ASME B 18.2.6 - 2010

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美标ASME B18.2.6 - 2010 ASME18.2.6 18.2.6A Twist-Off-Type Tension Control Structural Bolts: Heavy Hex Head Configurations (ASTM F 1852 / ASTM F 2280)
Screw Thread
d
1/2 5/8 3/4 7/8 1 1-1/8
PP UNC
s max
min
e max
min
k max
min
ds max
min
b Thread Length Ref.
z Ref.
s1 Ref.
13 11 10 9 8 7
0.875 1.062 1.25 1.438 1.625 1.812
0.85 1.031 1.212 1.394 1.575 1.756
1.01 1.227 1.443 1.66 1.876 2.093
0.969 1.175 1.383 1.589 1.796 2.002
0.323 0.403 0.483 0.563 0.627 0.718
0.302 0.378 0.455 0.531 0.591 0.658
0.515 0.642 0.768 0.895 1.022 1.149
0.482 0.605 0.729 0.852 0.976 1.098
1 1.25 1.38 1.5 1.75 2
0.5 0.6 0.65 0.72 0.8 0.9
0.32 0.43 0.53 0.61 0.7 0.8
①,Chemical and mechanical properties shall conform to ASTM F 1852 or ASTM F 2280, as applicable.