Hand Knob, Handle Type 4 Point, Handle Material Plastic, Mounting Type Threaded Insert, Thread Size 5/16 In.-18, Handle Dia. 2-1/2 in, Base Dia. 1 in, Overall Height 1.13 in, Tap Type Blind Hole, Includes -, Standards -, Color Black, Features Can be Adjusted to the Position Necessary, Seal Material Viton, Finish Zinc Yellow Chromate Component