ASME B18.2.2 Hex Flat Jam Nuts
ASME B18.2.2 Hex Flat Jam Nuts Dimensions (mm)
| Nominal Size | Basic Major Diameter of Thread | Width Across Flats, F | Width Across Corners, G | Thickness, H1 | Runout, FIM | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Basic | Min. | Max. | Min. | Max. | Basic | Min. | Max. | |||
| 1 1/8 | 28.575 | 42.863 | 41.427 | 42.875 | 47.219 | 49.505 | 15.875 | 15.113 | 16.637 | 0.737 |
| 1 1/4 | 31.750 | 47.625 | 46.025 | 47.625 | 52.476 | 54.991 | 19.050 | 18.237 | 19.863 | 0.813 |
| 1 3/8 | 34.925 | 52.388 | 50.648 | 52.375 | 57.734 | 60.503 | 20.638 | 19.761 | 21.488 | 0.889 |
| 1 1/2 | 38.100 | 57.150 | 55.245 | 57.150 | 62.992 | 65.989 | 22.225 | 21.311 | 23.139 | 0.991 |
ASME B18.2.2 Hex Flat Jam Nuts Dimensions (Inch)
| Nominal Size | Basic Major Diameter of Thread | Width Across Flats, F | Width Across Corners, G | Thickness, H1 | Runout, FIM | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Basic | Min. | Max. | Min. | Max. | Basic | Min. | Max. | |||
| 1 1/8 | 1.1250 | 1 11/16 | 1.631 | 1.688 | 1.859 | 1.949 | 5/8 | 0.595 | 0.655 | 0.029 |
| 1 1/4 | 1.2500 | 1 7/8 | 1.812 | 1.875 | 2.066 | 2.165 | 3/4 | 0.718 | 0.782 | 0.032 |
| 1 3/8 | 1.3750 | 2 1/16 | 1.994 | 2.062 | 2.273 | 2.382 | 13/16 | 0.778 | 0.846 | 0.035 |
| 1 1/2 | 1.5000 | 2 1/4 | 2.175 | 2.250 | 2.480 | 2.598 | 7/8 | 0.839 | 0.911 | 0.039 |