Coupling Nuts Brass Hex Coupling Nuts are internally threaded fasteners that join threaded rods, pipes, and other threaded parts, sometimes parts of differing sizes. They are similar to couplers and available in different threads, sizes.
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| d1 | m | e | s |
| m6 | 18 | 11.05 | 10 |
| m8 | 24 | 14.38 | 13 |
| m10 | 30 | 18.9 | 17 |
| m12 | 36 | 21.1 | 19 |
| m16 | 48 | 26.75 | 24 |
| m20 | 60 | 33.53 | 30 |
| m24 | 72 | 41.6 | 36 |