ASME B18.16.3M Prevailing Torque Hex Flange Nuts
| Nominal Dia. and Thread Pitch | Width Across Flats, S | Width Across Corners, E | All Metala Type | Top Insert Type | Flange Dia.,Dc | Bearing Circle Dia.,Dw | Flange Edge Thickness,C | Flange Top Fillet Radius,R | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thickness, M (All Nut Property Classes) | ||||||||||||
| Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Min | Max | |
| ANSI B18.16.3M - M6 × 1 | 10 | 9.78 | 11.55 | 11.05 | 7.3 | 5.7 | 8.8 | 8 | 14.2 | 12.2 | 1.1 | 0.4 |
| ANSI B18.16.3M - M8 × 1.25 | 13 | 12.73 | 15.01 | 14.38 | 9.4 | 7.6 | 10.7 | 9.7 | 17.9 | 15.8 | 1.2 | 0.5 |
| ANSI B18.16.3M - M10 × 1.5 | 15 | 14.73 | 17.32 | 16.64 | 11.4 | 9.6 | 13.5 | 12.5 | 21.8 | 19.6 | 1.5 | 0.6 |
| ANSI B18.16.3M - M12 × 1.75 | 18 | 17.73 | 20.78 | 20.03 | 13.8 | 11.6 | 16.1 | 15.1 | 26 | 23.8 | 1.8 | 0.7 |
| ANSI B18.16.3M - M14 × 2 | 21 | 20.67 | 24.25 | 23.35 | 15.9 | 13.3 | 18.2 | 17 | 29.9 | 27.6 | 2.1 | 0.9 |
| ANSI B18.16.3M - M16 × 2 | 24 | 23.67 | 27.71 | 26.75 | 18.3 | 15.3 | 20.3 | 19.1 | 34.5 | 31.9 | 2.4 | 1 |
| ANSI B18.16.3M - M20 × 2.5 | 30 | 29.16 | 34.64 | 32.95 | 22.4 | 18.9 | 24.8 | 23.5 | 42.8 | 39.9 | 3 | 1.2 |
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