ASME B18.2.4.2M Metric Hex Nuts Style 2

ASME B18.2.4.2M Metric Hex Nuts Style 2

Dimensions of ASME B18.2.4.2M Metric Hex Nuts Style 2

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
M3 x 0.5 5.50 5.32 6.35 6.01 2.90 2.65 4.6 -- --
M3.5 x 0.6 6.00 5.82 6.93 6.58 3.30 3.00 5.1 -- --
M4 x 0.7 7.00 6.78 8.08 7.66 3.80 3.50 5.9 -- --
M5 x 0.8 8.00 7.78 9.24 8.79 5.10 4.80 6.9 -- --
M6 x 1 10.00 9.78 11.55 11.05 5.70 5.40 8.9 -- --
M8 x 1.25 13.00 12.73 15.01 14.38 7.50 7.14 11.6 -- --
aM10 x 1.5 15.00 14.73 17.32 16.64 10.0 9.60 13.6 0.6 0.3
M10 x 1.5 16.00 15.73 18.48 17.77 9.30 8.94 14.6 -- --
M12 x 1.75 18.00 17.73 20.78 20.03 12.00 11.57 16.6 -- --
M14 x 2 21.00 20.67 24.25 23.35 14.10 13.40 19.6 -- --
M16 x 2 24.00 23.67 27.71 26.75 16.40 15.70 22.5 -- --
M20 x 2.5 30.00 29.16 34.64 32.95 20.30 19.00 27.7 0.8 0.4
M24 x 3 36.00 35.00 41.57 39.55 23.90 22.60 33.2 0.8 0.4
M30 x 3.5 46.00 45.00 53.12 50.85 28.60 37.30 42.7 0.8 0.4
M36 x 4 55.00 53.80 63.51 60.79 34.70 33.10 51.1 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.