| 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 |
1. 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.
2. All dimensions are in millimeters.