ASTM A193,
ASME B18.2.1 Heavy Hex bolts, Inch Series-NINGBO BOLT |
Dimensions
of ASME B18.2.1 Heavy Hex Bolts
Nominal Size or
Basic product Diameter |
Full
Size Body Diameter, E |
Width
Across Flats, F |
Width
Across Corners, G |
Head
Height, H |
Radius
of Fillet, R |
Thread
Length for
Bolt Lengths, LT |
6 in.
and Shorter |
Over 6
in. |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Nom |
Nom |
3/8 |
0.3750 |
0.388 |
0.360 |
0.688 |
0.669 |
0.794 |
0.763 |
0.268 |
0.226 |
0.03 |
0.01 |
1.000 |
1.250 |
1/2 |
0.5000 |
0.515 |
0.482 |
0.875 |
0.850 |
1.010 |
0.969 |
0.364 |
0.302 |
0.03 |
0.01 |
1.250 |
1.500 |
5/8 |
0.6250 |
0.642 |
0.605 |
1.062 |
1.031 |
1.227 |
1.175 |
0.444 |
0.378 |
0.06 |
0.02 |
1.500 |
1.750 |
3/4 |
0.7500 |
0.768 |
0.729 |
1.250 |
1.212 |
1.443 |
1.383 |
0.524 |
0.455 |
0.06 |
0.02 |
1.750 |
2.000 |
7/8 |
0.8750 |
0.895 |
0.852 |
1.438 |
1.394 |
1.660 |
1.589 |
0.604 |
0.531 |
0.06 |
0.02 |
2.000 |
2.250 |
1 |
1.000 |
1.022 |
0.976 |
1.625 |
1.575 |
1.876 |
1.796 |
0.700 |
0.591 |
0.09 |
0.03 |
2.250 |
2.500 |
1 1/8 |
1.1250 |
1.149 |
1.098 |
1.812 |
1.756 |
2.093 |
2.002 |
0.780 |
0.658 |
0.09 |
0.03 |
2.500 |
2.750 |
1 1/4 |
1.2500 |
1.277 |
1.223 |
2.000 |
1.938 |
2.309 |
2.209 |
0.876 |
0.749 |
0.09 |
0.03 |
2.750 |
3.000 |
1 3/8 |
1.3750 |
1.404 |
1.345 |
2.188 |
2.119 |
2.526 |
2.416 |
0.940 |
0.810 |
0.09 |
0.03 |
3.000 |
3.250 |
1 1/2 |
1.5000 |
1.531 |
1.470 |
2.375 |
2.300 |
2.742 |
2.622 |
1.036 |
0.902 |
0.09 |
0.03 |
3.250 |
3.500 |
1 5/8 |
1.6250 |
1.658 |
1.591 |
2.562 |
2.481 |
2.959 |
2.829 |
1.116 |
0.978 |
0.09 |
0.03 |
3.500 |
3.750 |
1 3/4 |
1.7500 |
1.785 |
1.716 |
2.750 |
2.662 |
3.175 |
3.035 |
1.196 |
1.054 |
0.12 |
0.04 |
3.750 |
4.000 |
1 7/8 |
1.8750 |
1.912 |
1.839 |
2.938 |
2.844 |
3.392 |
3.242 |
1.276 |
1.130 |
0.12 |
0.04 |
4.000 |
4.250 |
2 |
2.000 |
2.039 |
1.964 |
3.125 |
3.025 |
3.608 |
3.449 |
1.388 |
1.175 |
0.12 |
0.04 |
4.250 |
4.500 |
2 1/4 |
2.2500 |
2.305 |
2.214 |
3.500 |
3.388 |
4.041 |
3.862 |
1.548 |
1.327 |
0.19 |
0.06 |
4.750 |
5.000 |
2 1/2 |
2.5000 |
2.559 |
2.461 |
3.875 |
3.750 |
4.474 |
4.275 |
1.708 |
1.479 |
0.19 |
0.06 |
5.250 |
5.500 |
2 3/4 |
2.7500 |
2.827 |
2.711 |
4.250 |
4.112 |
4.907 |
4.688 |
1.869 |
1.632 |
0.19 |
0.06 |
5.750 |
6.000 |
3 |
3.000 |
3.081 |
2.961 |
4.625 |
4.475 |
5.340 |
5.102 |
2.060 |
1.815 |
0.19 |
0.06 |
6.250 |
6.500 |
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NINGBO STEEL
BOLT CO., LTD
Address:Panjiashan, Xiepu Town,
Zhenhai,
Ningbo, China
TEL:
86-574-86231358
FAX:
86-574-86231338
EMAIL:
bolt@ningbo-bolt.com
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