ASME B18.2.4.4M Hex Flange Nuts
| Nominal Dia | S | E | Dc | Dw | C | Circular Runout of Bearing Circle FIM | M | R | Wa | Ta | Wb | Tb | Wc | Tc | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Width Across Flats | Width Across Corners | Flange Dia | Bearing Circle Dia | Flange Edge Thickness | Thickness | Flange Top Fillet Radius | Gage A | Gage B | Gage C | |||||||||||||
| Inside Dia | Thickness | Inside Dia | Thickness | Inside Dia | Thickness | |||||||||||||||||
| Max. | Min. | Max. | Min. | Max. | Min. | Min. | Max. | Max. | Min. | Max. | Max. | Min. | Max. | Min. | Max. | Min. | Min. | Max. | Min. | Max. | Min. | |
| M5 | 8.00 | 7.78 | 9.24 | 8.79 | 11.8 | 9.8 | 1.0 | 0.31 | 5.00 | 4.70 | 0.3 | 9.25 | 9.24 | 2.20 | 2.19 | 8.78 | 8.77 | 3.0 | 12.00 | 11.96 | 1.08 | 1.07 |
| M6 | 10.00 | 9.78 | 11.55 | 11.05 | 14.2 | 12.2 | 1.1 | 0.34 | 6.00 | 5.70 | 0.4 | 11.56 | 11.55 | 3.10 | 3.09 | 11.04 | 11.03 | 4.0 | 14.40 | 14.30 | 1.19 | 1.18 |
| M8 | 13.00 | 12.73 | 15.01 | 14.38 | 17.9 | 15.8 | 1.2 | 0.38 | 8.00 | 7.60 | 0.5 | 15.02 | 15.01 | 4.50 | 4.49 | 14.37 | 14.36 | 4.0 | 18.10 | 18.00 | 1.31 | 1.30 |
| M10 | 15.00 | 14.73 | 17.32 | 16.64 | 21.8 | 19.6 | 1.5 | 0.43 | 10.00 | 9.60 | 0.6 | 17.33 | 17.32 | 5.50 | 5.49 | 16.63 | 16.62 | 5.0 | 22.00 | 21.90 | 1.81 | 1.80 |
| M12 | 18.00 | 17.73 | 20.78 | 20.03 | 26.0 | 23.8 | 1.8 | 0.50 | 12.00 | 11.60 | 0.7 | 20.79 | 20.78 | 6.70 | 6.69 | 20.02 | 20.01 | 5.0 | 26.20 | 26.10 | 2.20 | 2.19 |
| M14 | 21.00 | 20.67 | 24.25 | 23.35 | 29.9 | 27.6 | 2.1 | 0.55 | 14.00 | 13.30 | 0.9 | 24.26 | 24.25 | 7.80 | 7.79 | 23.34 | 23.33 | 6.0 | 30.10 | 30.00 | 2.55 | 2.54 |
| M16 | 24.00 | 23.67 | 27.71 | 26.75 | 34.5 | 31.9 | 2.4 | 0.61 | 16.00 | 15.30 | 1.0 | 27.72 | 27.71 | 9.00 | 8.99 | 26.74 | 26.73 | 6.0 | 34.70 | 34.60 | 2.96 | 2.95 |
| M20 | 30.00 | 29.16 | 34.64 | 32.95 | 42.8 | 39.9 | 3.0 | 0.76 | 20.00 | 18.90 | 1.2 | 34.65 | 34.64 | 11.10 | 11.09 | 32.94 | 32.93 | 6.0 | 43.00 | 42.90 | 3.70 | 3.69 |