ASME B18.2.2 Large Hex Flange Nuts

ASME B18.2.2 Large Hex Flange Nuts

Dimensions of Large Hex Flange Nuts to ASME B18.2.2 Standard

Nominal Size
Inch
Basic Major
Thread Diameter
Width Across Flats, F Width Across Corners, G Diameter Flange, B Nut Thickness, H Maximum Wrenching Length, J Maximum Flange Thickness, K
Min. Max. Min. Max. Min. Max. Min. Max.
1/4 0.2500 0.428 0.438 0.488 0.505 0.700 0.728 0.281 0.312 0.15 0.04
5/16 0.3125 0.489 0.500 0.557 0.577 0.790 0.820 0.343 0.375 0.20 0.04
3/8 0.3750 0.551 0.562 0.628 0.650 0.885 0.915 0.390 0.406 0.24 0.04
7/16 0.4375 0.675 0.688 0.768 0.794 1.100 1.131 0.437 0.468 0.26 0.04
1/2 0.5000 0.736 0.750 0.840 0.866 1.175 1.205 0.485 0.515 0.29 0.06
9/16 0.5625 0.861 0.875 0.982 1.010 1.260 1.300 0.546 0.578 0.37 0.06
5/8 0.6250 0.922 0.938 1.051 1.083 1.280 1.360 0.600 0.640 0.42 0.06