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.