Features:

Knurled Knobs:
Black clamping knurled hand knobs. It is sturdy and durable. Provide comfortable hand grip. Screw on type design for easy installation. Great replacement accessories for your lathe.

Wide Applications:
Clamping knurled knobs universally fit most types of machine tools. Can be used for milling machine, lathe, grinding machine, mechanical equipment, instrument, and industry equipment.

Specifications:
Material: Carbon steel
Color: Black
Male Thread Diameter: 4mm/0.16 inch
Male Thread Length: 10mm/0.39 inch
Total height: 21mm/0.82 inch
Head Diameter: 14mm/0.55 inch
Quantity: 100 pieces in total

Package Includes:
100 x Threaded Knurled Thumbscrew

Note:
-Please allow slight dimension error due to manual measurement.
-The color may exist slight difference due to different screen displays.
-It is recommended that you need washers as gaskets when installing some monitors to prevent affect to the computer monitor.
-The length of the screw part is 10 mm, which may bottom out on some computer monitors; You just need a layer of buffer to prevent direct contact in some cases.