The 222451-C1 is a black knob manufactured by Elesa & Ganter with a diameter of 56mm, a M10 thread, a 20mm body in technopolymer (PA) for improved strength, and a black cap. The knob is suitable for use in machinery, equipment and machinery panels. It is resistant to UV, oils, greases, many solvents and general corrosive agents, and also offers a superior grip.