Hand Knob, Handle Type Star, Handle Material Thermoplastic, Mounting Type Threaded Stud, Thread Size M8, Handle Dia. 40.00mm, Base Dia. 18.00mm, Overall Height 25 mm, Screw Length 20.00 mm, Overall Length 40 mm, Tap Type Not Applicable, Includes -, Standards DIN 6336, Color Black, Features Trivalent Blue Passivated Screw, Finish Matte