Extruded, easy-to-grip aluminum clamping knob. Four-prong design provides a firm grip for applications requiring quick tightening and high torque.
| Material | Heat Treat | Finish | RoHS |
| Extruded Aluminum | Yes | Green Anodize | Yes |

| A Diameter (mm) | B Diameter (mm) | C (mm) | D (mm) | E Diameter (mm) | E Depth (mm) |
| 51mm | 20.5mm | 35mm | 19mm | 12mm | 25.5mm |