RS PRO Black 4-Arm Clamping Knob M6 Threaded Stud 38 mm Diameter 13mm Thread Length 686-604

RS PRO 686-604 Black 4-Arm Clamping Knob M6 Threaded Stud is a premium phenolic star-shaped handwheel knob designed for fast, secure clamping and adjustment in industrial and commercial equipment.

The ergonomic four-arm design facilitates easy grip and torque application by hand, suitable for frequent use in mechanical assemblies and fixtures.

Constructed from wood-filled phenolic bodies with zinc-plated steel inserts, it delivers exceptional wear resistance and thread durability. The zinc plating protects against corrosion, ensuring long operational life.

With a knob diameter of 38 mm and threaded stud length of 13 mm (M6 thread), this knob allows precise and reliable fastening in applications requiring stable clamping force.

The product complies with BS771 standards and performs reliably within a working temperature range of -30°C to +140°C. It exhibits excellent chemical resistance to weak acids and chlorinated hydrocarbons.

Commonly applied in industrial settings, it is ideal for use on access doors, drawers, clamping fixtures, and various machinery requiring manual tightening or adjustment. The star knob shape enhances operation comfort and torque application.

The alloy insert material combines strength with impact resistance. Temperature tolerance supports diverse environmental conditions. Manufactured to strict quality standards for long-term durability. Black finish allows compatibility with various equipment aesthetics.

For engineers, maintenance teams, and machine builders needing dependable manual clamping components, this RS PRO 686-604 knob is an excellent choice, combining ergonomics and robust materials for industrial applications.

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