Hand Knob Handle Type Star Handle Material Steel Thermoplastic Mounting Type Threaded Bushing Thread Size 5/16 In.-18 Thread Standard UNC Handle Dia 40.00mm Base Dia 13.50mm Overall Height 25.00mm Screw Length 14.00 mm Overall Length 0.98 in Tap Type Blind Hole Includes - Standards RoHS Thread Type UNC Color Black Finish Matte