Type A - with male thread
Type B - with female thread
GN319.2 Revolving Ball Knob, Plastic, Steel Shaft, Male or Female
These revolving ball knobs can be used instead of revolving handles, for example with handwheels. They are comofortable to use and are hardwearing.
Plastic, Duroplast (Phenolic PF), temperature resistant up to 110° C, black, shiny finish
Shaft - Steel, zinc plated, blue passivated