ASME B18.2.4.3M Slotted Hex Nuts
| Nominal Nut Dia. and Thread | Width Across Flats, S | Width Across Corners, E | Thickness, M | Bearing Face Dia., Dw | Unslotted Thickness, F | Width of Slot, N | Washer Face Thickness C | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max | Min | Max | Min | Max | Min | Min | Max | Min | Max | Min | Max | Min | |
| ANSI B18.2.4.3M - M5 × 0.8 | 8 | 7.78 | 9.24 | 8.79 | 5.1 | 4.8 | 6.9 | 3.2 | 2.9 | 2 | 1.4 | ... | ... |
| ANSI B18.2.4.3M - M6 × 1 | 10 | 9.78 | 11.55 | 11.05 | 5.7 | 5.4 | 8.9 | 3.5 | 3.2 | 2.4 | 1.8 | ... | ... |
| ANSI B18.2.4.3M - M8 × 1.25 | 13 | 12.73 | 15.01 | 14.38 | 7.5 | 7.14 | 11.6 | 4.4 | 4.1 | 2.9 | 2.3 | ... | ... |
| ANSI B18.2.4.3M - a M10 × 1.5 | 15 | 14.73 | 17.32 | 16.64 | 10 | 9.6 | 13.6 | 5.7 | 5.4 | 3.4 | 2.8 | 0.6 | 0.3 |
| ANSI B18.2.4.3M - M10 × 1.5 | 16 | 15.73 | 18.48 | 17.77 | 9.3 | 8.94 | 14.6 | 5.2 | 4.9 | 3.4 | 2.8 | ... | ... |
| ANSI B18.2.4.3M - M12 × 1.75 | 18 | 17.73 | 20.78 | 20.03 | 12 | 11.57 | 16.6 | 7.3 | 6.9 | 4 | 3.2 | ... | ... |
| ANSI B18.2.4.3M - M14 × 2 | 21 | 20.67 | 24.25 | 23.35 | 14.1 | 13.4 | 19.6 | 8.6 | 8 | 4.3 | 3.5 | ... | ... |
| ANSI B18.2.4.3M - M16 × 2 | 24 | 23.67 | 27.71 | 26.75 | 16.4 | 15.7 | 22.5 | 9.9 | 9.3 | 5.3 | 4.5 | ... | ... |
| ANSI B18.2.4.3M - M20 × 2.5 | 30 | 29.16 | 34.64 | 32.95 | 20.3 | 19 | 27.7 | 13.3 | 12.2 | 5.7 | 4.5 | 0.8 | 0.4 |
| ANSI B18.2.4.3M - M24 × 3 | 36 | 35 | 41.57 | 39.55 | 23.9 | 22.6 | 33.2 | 15.4 | 14.3 | 6.7 | 5.5 | 0.8 | 0.4 |
| ANSI B18.2.4.3M - M30 × 3.5 | 46 | 45 | 53.12 | 50.85 | 28.6 | 27.3 | 42.7 | 18.1 | 16.8 | 8.5 | 7 | 0.8 | 0.4 |
| ANSI B18.2.4.3M - M36 × 4 | 55 | 53.8 | 63.51 | 60.79 | 34.7 | 33.1 | 51.1 | 23.7 | 22.4 | 8.5 | 7 | 0.8 | 0.4 |
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