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  5. ASME B18.2.2 Hex Nuts

ASME B18.2.2 Hex Nuts

ASME B18.2.2 Hex Nuts

Nominal Size F G H H1 Weight Per Pc
Width Across Flats Width Across Corners Thickness Hex Nut Thickness Jam Nut
Max Min Max Min Max Min Max Min
#0 3.9624 3.81 4.57 4.39 1.27 1.09 - - -
#2 4.7752 4.572 5.51 5.27 1.68 1.45 - - -
#4 6.35 6.1214 7.33 7.06 2.49 2.21 - - -
#6 7.9248 7.6708 9.15 8.85 2.9 2.59 - - -
#8 8.7376 8.4328 10 9.73 3.3 2.97 - - -
#10 9.525 9.1948 11 10.61 3.3 2.97 - - -
1/4" 11.12 10.88 12.82 12.4 5.74 5.39 4.14 3.81 0.0033
5/16" 12.7 12.43 14.65 14.15 6.93 6.56 4.95 4.58 0.005
3/8" 14.3 14 16.51 15.96 8.55 8.13 5.76 5.34 0.0072
7/16" 17.47 17.15 20.16 19.51 9.77 9.28 6.6 6.1 0.0129
1/2" 19.05 18.7 21.99 21.34 11.37 10.85 8.2 7.68 0.017
9/16" 22.22 21.87 25.65 24.95 12.59 12.02 8.22 7.65 0.0264
5/8" 23.82 23.42 27.5 26.7 14.19 13.59 9.82 9.23 0.0332
3/4" 28.57 27.64 32.99 31.5 16.89 15.68 11.32 10.11 0.0539
7/8" 33.32 32.24 38.5 36.76 19.71 18.39 12.95 11.64 0.0861
1" 38.1 36.83 43.99 41.99 22.52 21.11 14.6 13.19 0.128
1 1/8" 42.87 41.43 49.5 47.22 25.37 23.86 16.23 14.71 0.172
1 1/4" 47.62 46.03 54.99 52.48 27.78 26.17 19.07 17.45 0.241
1 3/8" 52.37 50.65 60.5 57.74 30.63 28.91 20.7 18.98 0.298
1 1/2" 57.15 55.25 65.98 63 33.45 31.63 22.35 20.53 0.401
1 5/8" 61.72 59.69 71.24 68.05 35.96 34.65 23.97 22.05 -
1 3/4" 66.67 64.47 76.98 73.49 39.11 37.09 25.62 23.6 -
1 7/8" 71.45 69.14 82.47 78.82 41.93 39.81 27.25 25.13 -
2" 76.2 73.66 87.98 83.98 44.78 42.55 28.9 26.67 -
2 1/4" 85.72 82.89 98.98 94.47 50.44 48.01 32.18 29.34 -
2 1/2" 95.25 92.08 109.98 104.98 56.1 53.47 36.24 35.59 -
2 3/4" 104.77 101.3 120.98 115.47 61.74 58.91 39.52 38.66 -
3" 114.3 110.49 131.97 125.96 67.41 64.37 42.79 41.74 -
3 1/4" 123.82 119.72 142.97 136.48 73.07 69.83 46.07 44.4 -
3 1/2" 133.35 128.91 153.97 146.97 78.74 75.29 49.35 47.5 -
3 1/4" 142.87 138.13 164.97 157.46 84.37 80.73 52.62 50.55 -
4" 152.4 147.32 175.97 167.95 90.04 86.19 55.9 53.65 -