When a regular hex finish nut just won't do, these Heavy Hex Nuts are much larger and stronger than a normal sized silicon bronze hex nut. The extra threaded length and the width across the flats on these larger nuts will hold your machine screw, hex bolt, or carriage bolt securely.
They are guaranteed to be true 655 Silicon Bronze alloy.
Need an anti-seize and thread protectant for these nuts? Don't forget to add on some Fair Wind Screw Lube.
| Nominal Size | Width Across The Flats | Thickness |
| 1/4 | 1/2 | 15/64 |
| 5/16 | 9/16 | 19/64 |
| 3/8 | 11/16 | 23/64 |
| 7/16 | 3/4 | 27/64 |
| 1/2 | 7/8 | 31/64 |
| 9/16 | 15/16 | 35/64 |
| 5/8 | 1 1/16 | 39/64 |
| 3/4 | 1 1/4 | 47/64 |
| 7/8 | 1 7/16 | 55/64 |
| 1 | 1 5/8 | 63/64 |
| 1 1/8 | 1 13/16 | 1 7/64 |
| 1 1/4 | 2 | 1 7/32 |
| 1 3/8 | 2 3/16 | 1 11/32 |
| 1 1/2 | 2 3/8 | 1 15/32 |
| 1 5/8 | 2 9/16 | 1 19/32 |
| 1 3/4 | 2 3/4 | 1 23/32 |
| 1 7/8 | 2 15/16 | 1 27/32 |
| 2 | 3 1/8 | 1 31/32 |
| 2 1/4 | 3 1/2 | 2 13/64 |
| 2 1/2 | 3 7/8 | 2 29/64 |
| 2 3/4 | 4 1/4 | 2 45/64 |
| 3 | 4 5/8 | 2 61/64 |
| 3 1/4 | 5 | 3 3/16 |
| 3 1/2 | 5 3/8 | 3 7/16 |
| 3 3/4 | 5 3/4 | 3 11/16 |
| 4 | 6 1/8 | 3 15/16 |