DimcoGray Phenolic Back Knob. Plastic Threaded Ball Knob, Round Threaded Knob. Brass Threaded Insert. 1/2-13" Thread Size with 5/8" Thread Length. Knob Diameter: 1 3/8" Diameter (1 Each)
Molded plastic control ball handles for machine tools, jigs, fixtures, etc. Plastic control ball handles give your product that dressed up appearance. Metric dimensions are in millimeters.