Hand Knob, Handle Type Wing, Handle Material Thermoplastic, Mounting Type Threaded Stud, Thread Size 5/16 In.-18, Thread Standard UNC, Handle Dia. 28.00mm, Base Dia. 12.00mm, Overall Height 53.3 mm, Screw Length 40.00 mm, Overall Length 28 mm, Tap Type Not Applicable, Includes -, Standards RoHS, Thread Type UNC, Color Black, Features Steel Trivalent Blue Passivated, Stainless Steel Bright, Finish Matte