RS PRO Black Polypropylene 4-Arm Clamping Knob Threaded Stud 40 mm Diameter, 25 mm Thread Length 702-7737

RS PRO 702-7737 is a black polypropylene 4-arm clamping knob with a threaded stud mount, featuring a 40 mm diameter and 25 mm thread length. Designed for robust industrial and mechanical applications, this knob provides ergonomic hand gripping comfort, enabling users to tighten, loosen, clamp, and adjust components effectively.

Its durable thermoplastic polypropylene body is impact-resistant and paired with a stainless steel insert, ensuring excellent strength and thread wear resistance. The matte black finish offers resistance against most chemicals, UV light, and water absorption up to 1.5%, maintaining performance over time.

The clamping knob operates efficiently within a working temperature range from -20°C to +110°C and can withstand short-term exposure to temperatures up to +170°C. These performance traits make it highly suitable for demanding environments including industrial machinery, food processing units, and medical furniture where hygiene and durability are critical.

The stainless steel threaded stud insert enhances the knob’s ability to maintain performance in outdoor or moist and hygiene-sensitive environments, unlike zinc-plated steel variants that are more prone to rust and performance degradation.

Common applications include use in access doors, drawers, panels (domestic and industrial), clamps, fixtures, industrial and food machinery, and medical equipment. Its ergonomic shape ensures user comfort and provides enhanced torque application.

The knob diameter is 40 mm and thread length is 25 mm for precise fitment. Thermoplastic polypropylene body provides impact resistance and longevity. Stainless steel insert offers wear resistance and durability. Matte black finish is resistant to chemicals and UV light.

Designed for ergonomic grip and is easy to operate manually. Suitable for industrial, medical, food preparation, and construction applications. Manufactured in China to ensure quality and consistency.

This clamping knob is ideal for industrial technicians and engineers seeking reliable and comfortable hand-operated components for machinery and equipment. Browse the Industrial Tools & Equipment category on EnvMart for a complete selection of knobs, levers, and handles designed for diverse mechanical applications.

Explore more products in our Clamping Knobs category.