PRODUCT
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PRODUCT
ASTM A194-2H
ASME/ANSI B18.2.2 HEAVY HEX NUTS

ASTM A194-2H

SIZE F G H
Width Across Flats Width Across Corners Thickness
Max Min Max Min Max Min
1/4 12.70 12.40 14.65 14.13 6.35 5.54
5/16 14.27 13.87 16.51 15.80 7.97 7.12
3/8 17.47 17.00 20.16 19.38 9.57 8.67
7/16 19.05 18.50 21.99 21.09 11.20 10.24
1/2 22.22 21.59 25.65 24.62 12.80 11.79
9/16 23.82 23.09 27.50 26.34 14.42 13.36
5/8 26.97 26.19 31.16 29.85 16.02 14.91
3/4 31.75 30.79 36.65 35.11 19.25 18.04
7/8 36.52 35.41 42.16 40.37 22.47 21.16
1 41.27 40.01 47.65 45.62 25.70 24.29
1-1/8 46.02 44.61 53.16 50.86 28.93 27.41
1-1/4 50.80 49.23 58.64 56.11 31.77 30.15
1-3/8 55.57 53.83 64.16 61.37 35.00 33.28
1-1/2 60.32 58.42 69.64 66.60 38.22 36.40
1-5/8 65.07 63.02 75.15 71.84 41.45 39.53
1-3/4 69.85 67.62 80.64 77.09 44.67 42.65
1-7/8 74.62 72.24 86.15 82.35 47.90 45.78
2 79.37 76.84 91.64 87.61 51.13 48.90
Material: Medium carbon steel    ASTM A194 Gr. 2H
Surface Treatment: Black Finish, Zinc Plated, Yellow Zinc, Hot Dipped Galvanized,etc