702-7526, RS PRO, RS PRO Black Knurled Clamping Knob, M4, Threaded Stud, Brand RS Pro, Thread M4, Thread Diameter 4mm, Thread Length 20mm, Knob Shape Knurled, Mounting Type Threaded Stud RS PRO Black Knurled Clamping Knob, M4, Threaded Stud