Hand Knob, Handle Type 3 Point, Handle Material Plastic, Mounting Type Hex Hole for Bolts/Cap Screws/Nuts, Thread Size 1/4 In., Handle Dia. 1-3/4 in, Base Dia. 3/4 in, Overall Height 1.05 in, Inside Dia. 1/4 in, Tap Type Through Hole, Includes -, Standards -, Color Black, Features Plastic 3-Prong Knob, Grasp and Turn, Knobs are Ideal for Applications that Require Quick Hand Adjustments, Seal Material Not Applicable, Finish –