Dimensions of Metric Heavy Hex Structural Bolts

Dimensions of Metric Heavy Hex Structural Bolts

Diameter, D, and Thread Pitch Body Diameter Ds Width Across Flats, S Width Across Corners, E Head Height, K Wrenching Height, K1, Min Washer Face Diameter, Dw, Min Washer Face Thickness, C Thread Length, B, Basic Transition Thread Length, Xo, Max
Max Min Max Min Max Min Max Min Max Min Length ≤ 100 Length > 100
M16 x 2 16.70 15.30 27.00 26.16 31.18 29.56 10.75 9.25 6.5 24.9 0.8 0.4 31 38 6.0
M20 x 2.5 20.84 19.16 34.00 33.00 39.26 37.29 13.40 11.60 8.1 31.4 0.8 0.4 36 43 7.5
M22 x 2.5 22.84 21.16 36.00 35.00 41.57 39.55 14.90 13.10 9.2 33.3 0.8 0.4 38 45 7.5
M24 x 3 24.84 23.16 41.00 40.00 47.34 45.20 15.90 14.10 9.9 38.0 0.8 0.4 41 48 9.0
M27 x 3 27.84 26.16 46.00 45.00 53.12 50.85 17.90 16.10 11.3 42.8 0.8 0.4 44 51 9.0
M30 x 3.5 30.84 29.16 50.00 49.00 57.74 55.37 19.75 17.65 12.4 46.5 0.8 0.4 49 56 10.5
M36 x 4 37.00 35.00 60.00 58.80 69.28 66.44 23.55 21.45 15.0 55.9 0.8 0.4 56 63 12.0