Hand Knob, Handle Type Fluted, Handle Material Plastic, Mounting Type Hex Hole for Bolts/Cap Screws/Nuts, Thread Size 3/8 In., Handle Dia. 1-3/4 in, Base Dia. 1-1/4 in, Overall Height 0.86 in, Inside Dia. 3/8 in, Tap Type Through Hole, Features MRO, Prototypes, Jigs, Fixtures and Unusual Length Fasteners, Seal Material Not Applicable, Finish Matte