Keystone Electronics Corp. Instrumentation Knob 8560

Instrumentation knob for a .250 inch (6.4 mm) shaft, made with an ABS hub and a brass, nickel-plated insert, featuring a thermoplastic elastomer soft-touch gripping surface. The knob has a height of 1.010 inches (25.7 mm), an inside diameter of 0.640 inches (16.3 mm), and a nut clearance bore depth of 0.910 inches (23.1 mm). It includes a .360 inch (9.1 mm) hex head for secure attachment and is designed to mount with two set screws.