Hand Knob Handle Type 3 Point Handle Material Steel Thermoset Mounting Type External Thread Thread Size 1/4 In.-20 Thread Standard UNC Handle Dia 1-1/8 in Base Dia 1/2 in Overall Height 3/4 in Screw Length 1/2 in Overall Length 1.27 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