ASME B18.2.1 7/8-9 UNC x 3 Hex Cap Screw
In stock in 6 material, grade and finish combinations.
Dimensions at 7/8-9 UNC x 3
in · ASME B18.2.1 · 2012 (R2021) edition| Dimension | Nominal | Min | Max | |
|---|---|---|---|---|
| d | Thread size | 7/8-9 UNC | – | – |
| L | Length | 3 | – | – |
| Basic major diameter | 0.875 | – | – | |
| TPI | Threads per inch | 9 | – | – |
| Thread series | UNC | – | – | |
| Thread class | 2A | – | – | |
| E | Body diameter | – | 0.866 | 0.875 |
| F | Width across flats | – | 1.285 | 1.312 |
| G | Width across corners | – | 1.465 | 1.516 |
| H | Head height | – | 0.531 | 0.563 |
| J | Wrenching height | – | 0.378 | – |
| LT | Thread length (L≤6 in) | 2 | – | – |
| LT | Thread length (L>6 in) | 2.25 | – | – |
- Length under head
- 3 in
- Approx. weight
- ≈ 312.17 kg per 1 000 pieces · Bare steel, before coating and packing.3.2 pieces per kg
Holes for this thread
ISO 273 · ISO 2306Tap drill49/64 (0.7656 in)
Other lengths in 7/8-9 UNC
All 143 sizes of Hex Cap Screw ASME B18.2.1StandardsASME B18.2.1All sizes