Coupling Nut
These nuts are thicker, or taller than most nuts. They are used to connect pieces of threaded rod or bolts together.
Other Names: Rod Coupling, Connecting Nut, Extension Nut
Typical Dimensions
| Thread Dia. | Length | Across Flats |
|---|---|---|
| No. 8 | 5/8 | 5/16 |
| No. 10 | 3/4 | 5/16 |
| 1/4 | 7/8 | 3/8 |
| 1/4 | 1 1/2 | 7/16 |
| 1/4 | 1 3/4 | 7/16 |
| 5/16 | 7/8 | 1/2 |
| 5/16 | 1 1/8 | 1/2 |
| 3/8 | 1 1/8 | 1/2 |
| 3/8 | 1 3/4 | 9/16 |
| 1/2 | 1 1/4 | 5/8 |
| 1/2 | 1 3/4 | 11/16 |
| 5/8 | 2 1/8 | 13/16 |
| 3/4 | 2 1/4 | 1 |
| 7/8 | 2 1/2 | 1 1/4 |
| 1 | 2 3/4 | 1 3/8 |