threaded knob / round / stainless steel / steel
stainless steel, steel, thermoplastic
The Gamm Industrial Handles VTB is a series of triple-lobe locking knobs. They have been manufactured out of a thermo-plastic, black-colored material. They are also readily available in modified colors, and provide a wide range of various threaded metal insert housing materials, such as steel, zinc-plated, stainless steel, and brass.