ASME B18.2.2 5/16-18 UNC Nut and Hex Jam Nut
In stock in 6 material, grade and finish combinations.
Dimensions at 5/16-18 UNC
in · ASME B18.2.2 · dimensions from 2015 · current edition 2022| Dimension | Nominal | Min | Max | |
|---|---|---|---|---|
| d | Thread size | 5/16-18 UNC | – | – |
| Basic major diameter | 0.3125 | – | – | |
| TPI | Threads per inch | 18 | – | – |
| Thread series | UNC | – | – | |
| Thread class | 2B | – | – | |
| F | Width across flats | – | 0.489 | 0.5 |
| G | Width across corners | – | 0.557 | 0.577 |
| H | Nut height | 0.273 | 0.258 | 0.273 |
| H₁ | Jam nut thickness | – | 0.18 | 0.195 |
- Approx. weight
- ≈ 5.47 kg per 1 000 pieces · Bare steel, before coating and packing.183 pieces per kg
ProductAll 9 sizes of Hex Jam Nut ASME B18.2.2
Nearby sizes1/4-20 UNC3/8-16 UNC
StandardsASME B18.2.2All sizes