Heavy-hex nut with a flanged face. This large bearing surface prevents damage to the part underneath the nut and provides extra strength. Ideal for clamping over a slot. Fully machined from solid barstock for extra strength, unlike inferior substitutes.

| Steel | |||||
| Material | Heat Treat | Finish | DFARS | RoHS | |
| 1215 Steel | Carburized-Hardened | Black Oxide | Yes | Yes | |
| Stainless Steel | |||||
| Material | Heat Treat | Finish | DFARS | RoHS | |
| 300-Series Stainless Steel | - | Passivated | Yes | Yes | |

| A Thread | Thread Pitch (mm) | B (mm) | C Diameter (mm) | D (mm) | E (mm) |
| M20 | 2.5mm | 25mm | 41mm | 30mm | 6mm |