Ball knobs have a gloss surface and are made of high-strength phenolic. They come with steel or moulded threads, as well as a tapered bore that allows the ball to be knocked onto the end of a plain rod or shaft. Ball knobs with male studs can be made to order as well. Control knobs are moulded in both thermoset and thermoplastic materials and are commonly found on gas and electrical appliances. They’re made with a standard D shaft fixing that may be customised to fit different shaft diameters and orientations. Wing knobs are typically employed when maximum torque is required, and they come in a variety of sizes, designs, and materials. Thumb knobs are used to adjust or fix things and come in male, female, and through threads. Knobs with or without bosses, solid or recessed heads, screwdriver slots, and fine or heavy knurls are among the styles available.