Acorn Nut
These nuts have an all metal dome on the top of the nut. Good for situations where you want to cover the end of some protruding threads.
Nuts are usually designated either Low Crown or High Crown. This refers to the overall height of the nut.
Other Names: Cap Nut
Typical Dimensions - Low Crown
| Thread Dia. | Across Flats | Height | Thread Depth |
|---|---|---|---|
| No. 6 | 5/16 | 0.34 | 0.16 - 0.25 |
| No. 8 | 5/16 | 0.34 | 0.16 - 0.25 |
| No. 10 | 3/8 | 0.41 | 0.19 - 0.28 |
| 1/4 | 7/16 | 0.47 | 0.25 - 0.34 |
| 5/16 | 1/2 | 0.53 | 0.31 - 0.41 |
| 3/8 | 9/16 | 0.62 | 0.38 - 0.45 |
| 1/2 | 3/4 | 0.81 | 0.50 - 0.59 |
| 5/8 | 15/16 | 1 | 0.62 - 0.75 |
| 3/4 | 1 1/16 | 1.16 | 0.75 - 0.88 |