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