| Diameter, D, and Thread Pitch | Body Diameter Ds | Width Across Flats, S | Width Across Corners, E | Head Height, K | Wrenching Height, K1, Min | Washer Face Diameter, Dw, Min | Washer Face Thickness, C | Thread Length, B, Basic | Transition Thread Length, Xo, Max | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Length ≤ 100 | Length > 100 | ||||
| M16 x 2 | 16.70 | 15.30 | 27.00 | 26.16 | 31.18 | 29.56 | 10.75 | 9.25 | 6.5 | 24.9 | 0.8 | 0.4 | 31 | 38 | 6.0 |
| M20 x 2.5 | 20.84 | 19.16 | 34.00 | 33.00 | 39.26 | 37.29 | 13.40 | 11.60 | 8.1 | 31.4 | 0.8 | 0.4 | 36 | 43 | 7.5 |
| M22 x 2.5 | 22.84 | 21.16 | 36.00 | 35.00 | 41.57 | 39.55 | 14.90 | 13.10 | 9.2 | 33.3 | 0.8 | 0.4 | 38 | 45 | 7.5 |
| M24 x 3 | 24.84 | 23.16 | 41.00 | 40.00 | 47.34 | 45.20 | 15.90 | 14.10 | 9.9 | 38.0 | 0.8 | 0.4 | 41 | 48 | 9.0 |
| M27 x 3 | 27.84 | 26.16 | 46.00 | 45.00 | 53.12 | 50.85 | 17.90 | 16.10 | 11.3 | 42.8 | 0.8 | 0.4 | 44 | 51 | 9.0 |
| M30 x 3.5 | 30.84 | 29.16 | 50.00 | 49.00 | 57.74 | 55.37 | 19.75 | 17.65 | 12.4 | 46.5 | 0.8 | 0.4 | 49 | 56 | 10.5 |
| M36 x 4 | 37.00 | 35.00 | 60.00 | 58.80 | 69.28 | 66.44 | 23.55 | 21.45 | 15.0 | 55.9 | 0.8 | 0.4 | 56 | 63 | 12.0 |