Classic, easy-to-grip cast iron clamping knob. Four-prong design provides a firm grip for applications requiring quick tightening and high torque. Made in USA.
| Item | Material | Heat Treat | Finish | DFARS | RoHS |
| Hand Knobs (Cast Iron) | Zinc Plated Clear Chromate | Yes | Yes | Yes | Yes |

| D Diameter (Inch) | A Diameter (Inch) | B (Inch) | C (Inch) | H (Inch) | E Thread (Inch) |
| 2-1/8" | 1" | 5/8" | 7/16" | 1-3/8" | 3/8-16" |