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ASME B18.2.4.1M Metric Hex Nuts Style 1

ASME B18.2.4.1M Metric Hex Nuts Style 1

Dimensions of ASME B18.2.4.1M Metric Hex Nuts Style 1

Nominal Nut Diameter and Thread Pitch Width Across Flats, S Width Across Corners, E Thickness, M, Bearing Face Diameter, Dw, Min Washer Face Thickness
Max Min Max Min Max Min Max Min
M1.6 x 0.35 3.20 3.02 3.70 3.41 1.30 1.05 2.3 -- --
M2 x 0.4 4.00 3.82 4.62 4.32 1.60 1.35 3.1 -- --
M2.5 x 0.45 5.00 4.82 5.77 5.45 2.00 1.75 4.1 -- --
M3 x 0.5 5.50 5.32 6.35 6.01 2.40 2.15 4.6 -- --
M3.5 x 0.6 6.00 5.82 6.93 6.58 2.80 2.55 5.1 -- --
M4 x 0.7 7.00 6.78 8.08 7.66 3.20 2.90 6.0 -- --
M5 x 0.8 8.00 7.78 9.24 8.79 4.70 4.40 7.0 -- --
M6 x 1 10.00 9.78 11.55 11.05 5.20 4.90 8.9 -- --
M8 x 1.25 13.00 12.73 15.01 14.38 6.80 6.44 11.6 -- --
M10 x 1.5 15.00 14.73 17.32 16.64 9.10 8.70 13.6 0.6 0.3
M10 x 1.5 16.00 15.73 18.48 17.77 8.40 8.04 14.6 -- --
M12 x 1.75 18.00 17.73 20.78 20.03 10.80 10.37 16.6 -- --
M14 x 2 21.00 20.67 24.25 23.36 12.80 12.10 19.4 -- --
M16 x 2 24.00 23.67 27.71 26.75 14.80 14.10 22.4 -- --
M20 x 2.5 30.00 29.16 34.64 32.95 18.00 16.90 27.9 0.8 0.4
M24 x 3 36.00 35.00 41.57 39.55 21.50 20.20 32.5 0.8 0.4
M30 x 3.5 46.00 45.00 53.12 50.85 25.60 24.30 42.5 0.8 0.4
M36 x 4 55.00 53.80 63.51 60.79 31.00 29.40 50.8 0.8 0.4
  • a This size with width across flats of 15mm is not standard. Unless specifically ordered, M10 hex nuts with 16mm width across flats will be furnished.
  • All dimensions are in millimeters.