Hand Knob, Handle Type Fluted, Handle Material Polypropylene, Mounting Type Hex Hole for Bolts/Cap Screws/Nuts, Thread Size 5/16 in, Handle Dia. 2-3/8 in, Base Dia. 1-1/4 in, Overall Height 1-15/64 in, Inside Dia. 5/16 in, Tap Type Through Hole, Features Fixtures and Unusual Length Fasteners, Jigs, MRO, Prototypes, Finish Matte