Classic, easy-to-grip cast iron clamping knob. F-prong design provides a firm grip for applications requiring quick tightening and high torque. Choice of five knob sizes, each available blank, tapped, tapped through, or reamed. Made in USA.
| Item | Material | Heat Treat | Finish | DFARS | RoHS |
| Hand Knobs (Cast Iron) | Zinc Plated Clear Chromate | - | - | โ | โ |

| D Diameter (mm) | A Diameter (mm) | B (mm) | C (mm) | H (mm) | E Thread | Thread Pitch (mm) |
| 44mm | 19mm | 13mm | 10mm | 29mm | M6 | 1mm |