1/4″-20 x 5/8″ Plastic Coarse Thread Thumb Screws (12 pcs.)
Diameter: 1/4″ Length: 5/8″ Material: Plastic Thread Size: 20 (Coarse) Type: Thumb Screw Box of 12. A thumb screw is a threaded fastener designed to be twisted into a tapped hole by hand without the use of tools.