Tall heavy-hex nut with a closed end, machined from solid steel. Acorn Nuts cap off the end of a stud to prevent snagging or damage to the threads.

| Material | Heat Treat | Finish | DFARS | RoHS |
| 1215 Steel | Carburized-Hardens | Black Oxide | Yes | Yes |

| A Thread (Inch) | B (Inch) | C (Inch) | D (Inch) |
| 1/2-13" | 7/8" | 9/16" | 15/16" |