Dimensions, Physical Properties – Metric Series
Heavy Hexagon Nuts ASTM A563M
Thread Nut Dia and Thread Pitch
M12 x 1.75 M14 x 2 M16 x 2 M20 x 2.5 M22 x 2.5 M24 x 3 M27 x 3 M30 x 3.5 M36 x 4 M42 x 4.5 M48 x 5 M56 5.5 M64 x 6 M72 x 6 M80 x 6 M90 x 6 M100 x 6
F
Min
20.16 23.16 26.16 33 35 40 45 49 58.8 67.9 77.6 87.2 96.8 106.4 116.4 130.5 145
G Width Across Corners Max
24.25 27.71 31.18 39.26 51.57 47.34 53.12 57.74 69.28 80.83 92.38 103.92 115.47 127.02 138.56 155.58 173.21
Min
22.78 26.17 29.56 37.29 39.55 45.2 50.85 55.37 66.44 77.41 88.46 99.41 110.35 121.3 132.24 148.77 165.3
H Thickness Max
12.3 14.3 17.1 20.7 23.6 24.2 27.6 30.7 36.6 42 48 56 64 72 80 90 100
Min
11.9 13.6 16.4 19.4 22.3 22.9 26.3 29.1 35 40.4 46.4 54.1 62.1 70.1 78 87.8 97.8
Dw C Min
0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.6
Width Across Flats Max
21 24 27 34 36 41 46 50 60 70 80 90 100 110 120 135 150
Bearing Washer Face Face Dia Thickness Min
19.2 22 24.9 31.4 33.3 38 42.8 46.6 55.9 64.5 73.7 82.8 92 101.1 110.2 124 137.8
Max
0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 1 1 1 1 1.2 1.2 1.2 1.2
Total
Runout of Bearing Surface FIM Max
0.38 0.42 0.47 0.58 0.63 0.72 0.8 0.87 1.05 1.22 1.4 1.57 1.75 1.92 2.09 2.36 2.62