A knob is a round protrusion placed at the end of a shaft. A knob can be used to give a finished look to an exposed shaft, or it can be used as a dial or pointer. Knobs, available in several shapes and sizes can be manufactured in molded polycarbonate, ABS, nylon and bakelite.
Military Knob, Pointer
from: Concord Electronics Corporation
The knob is molded of polycarbonate self extinguishing thermoplastic and has a matte finish. The metal insert is aluminum and plated to withstand salt spray. The knob comes with two socket head set-screws.
Knobs can be supplied by Gould Fasteners from these manufacturers: