| Nominal Nut Diameter and Thread Pitch | Width Across Flats, S | Width Across Corners, E | Thickness M | Bearing Face Diameter, Dw, Min | Washer Face Thickness, C | ||||
|---|---|---|---|---|---|---|---|---|---|
| Max | Min | Max | Min | Max | Min | Max | Min | ||
| M12 x 1.75 | 21.00 | 20.16 | 24.25 | 22.78 | 12.3 | 11.9 | 19.2 | 0.8 | 0.4 |
| M14 x 2 | 24.00 | 23.16 | 27.71 | 26.17 | 14.3 | 13.6 | 22.0 | 0.8 | 0.4 |
| M16 x 2 | 27.00 | 26.16 | 31.18 | 29.56 | 17.1 | 16.4 | 24.9 | 0.8 | 0.4 |
| M20 x 2.5 | 34.00 | 33.00 | 39.26 | 37.29 | 20.7 | 19.4 | 31.4 | 0.8 | 0.4 |
| M22 x 2.5 | 36.00 | 35.00 | 41.57 | 39.55 | 23.6 | 22.3 | 33.3 | 0.8 | 0.4 |
| M24 x 3 | 41.00 | 40.00 | 47.34 | 45.20 | 24.2 | 22.9 | 38.0 | 0.8 | 0.4 |
| M27 x 3 | 46.00 | 45.00 | 53.12 | 50.85 | 27.6 | 26.3 | 42.8 | 0.8 | 0.4 |
| M30 x 3.5 | 50.00 | 49.00 | 57.74 | 55.37 | 30.7 | 29.1 | 46.6 | 0.8 | 0.4 |
| M36 x 4 | 60.00 | 58.80 | 69.28 | 66.44 | 36.6 | 35.0 | 55.9 | 0.8 | 0.4 |
| M42 x 4.5 | 70.00 | 67.90 | 80.83 | 77.41 | 42.0 | 40.4 | 64.5 | 1.0 | 0.5 |
| M48 x 5 | 80.00 | 77.60 | 92.38 | 88.46 | 48.0 | 46.4 | 73.7 | 1.0 | 0.5 |
| M56 x 5.5 | 90.00 | 87.20 | 103.92 | 99.41 | 56.0 | 54.1 | 82.8 | 1.0 | 0.5 |
| M64 x 6 | 100.00 | 96.80 | 115.47 | 110.35 | 64.0 | 62.1 | 92.0 | 1.0 | 0.5 |
| M72 x 6 | 110.00 | 106.40 | 127.02 | 121.30 | 72.0 | 70.0 | 101.1 | 1.2 | 0.6 |
| M80 x 6 | 120.00 | 116.00 | 138.56 | 132.24 | 80.0 | 78.1 | 110.2 | 1.2 | 0.6 |
| M90 x 56 | 135.00 | 130.50 | 155.88 | 148.77 | 90.0 | 87.8 | 124.0 | 1.2 | 0.6 |
| M100 x 6 | 150.00 | 145.00 | 173.21 | 165.30 | 100.0 | 97.8 | 137.8 | 1.2 | 0.6 |
This size with width across flat of 15mm is not standard. Unless specifically ordered, M10
hex jam nuts with 16 mm width across flats will be furnished.
All dimensions are in millimeters.