Heavy lock nut that can be tightened by hand or with an extension rod. Large contact surface.

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

| A Thread | Thread Pitch (mm) | B Diameter (mm) | C Diameter (mm) | D (mm) | E (mm) | F Diameter (mm) |
| M10 | 1.5mm | 28.5mm | 25mm | 11mm | 1.6mm | 6.5mm |