Hand Knob, Handle Type 3 Point, Handle Material Plastic, Mounting Type Threaded Insert, Thread Size 5/16 In.-18, Handle Dia. 2-1/2 in, Base Dia. 3/4 in, Overall Height 1.12 in, Tap Type Blind 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 Nylon, Finish Zinc Plated Component