Hand Knob, Handle Type Ball, Handle Material Plastic, Mounting Type Locknut, Thread Size 1/4 In.-20, Handle Dia. 1 in, Base Dia. 5/8 in, Overall Height 0.88 in, Tap Type Blind Hole, Includes -, Standards -, Color Black, Features No-Slip Grip, Seal Material Viton, Finish Satin, Zinc Plated Component