Hand Knob Handle Type Fluted Handle Material Steel Thermoset Mounting Type External Thread Thread Size 5/16 In.-18 Thread Standard UNC Handle Dia 1-1/2 in Base Dia 11/16 in Overall Height 3/4 in Screw Length 1/2 in Overall Length 1.2800 in Standards Steel Zinc Plated Thread Type UNC Color Black Features General Equipment and Other Industrial Applications Industrial Machinery Medical Equipment Finish High Gloss Zinc Plated Component