Dimensions of Metric Heavy Hex Screws

Dimensions of Metric Heavy Hex Screws

Nominal Screw Diameter, D, and Thread Pitch Body Diameter Ds, Width Across Flats, S Width Across Corners, E Head Height, K Wrenching Height, K1 Washer Face Thickness, C Washer Face Diameter, Dw
Max Min Max Min Max Min Max Min Min Max Min Max
M12 x 1.75 12.00 11.73 21.00 20.67 24.25 23.35 7.76 7.24 5.2 0.6 0.3 19.6
M14 x 2 14.00 13.73 24.00 23.67 27.71 26.75 9.09 8.51 6.2 0.6 0.3 22.5
M16 x 2 16.00 15.73 27.00 26.67 31.18 30.14 10.32 9.68 7.0 0.8 0.4 25.3
M20 x 2.5 20.00 19.67 34.00 33.00 39.26 37.29 12.88 12.12 8.8 0.8 0.4 31.4
M24 x 3 24.00 23.67 41.00 40.00 47.34 45.20 15.44 14.56 10.5 0.8 0.4 38.0
M30 x 3.5 30.00 29.67 50.00 49.00 57.74 55.37 19.48 17.92 13.1 0.8 0.4 46.6
M36 x 4 36.00 35.61 60.00 58.80 69.28 66.44 23.38 21.72 15.8 0.8 0.4 55.9