Tristar Knobs have a lightweight, open design and offer three good surfaces for grip. Often used for machine building applications, they are manufactured from a tough, high-impact-resistant thermoplastic.
With a matt black finish, these Knobs are available with male, female and through threads.
Material - High-Impact-Resistant Thermoplastic. Knob, Threaded Brass Inserts (Female), Zinc Plated Steel Threaded Rod (Male).