RS PRO Black Multiple Lobes Clamping Knob M8 Threaded Through Hole Brass Insert 44 mm Diameter 686-171

The RS PRO 686-171 Black Multiple Lobes Clamping Knob is designed for high-performance industrial, mechanical, and commercial fastening applications. Featuring an M8 threaded through hole, this clamping knob ensures compatibility with standard M8 bolts and threaded rods, providing reliable gripping and clamping capability.

Its ergonomic multiple lobes shape, also known as a star-shaped handwheel, allows users to apply significant torque comfortably without tools, facilitating manual adjustments and secure fastening. The knob's 44 mm diameter offers enough surface area for user comfort and efficient torque transfer.

Constructed with a combination of phenolic resin for the knob body and a brass insert for the thread, this product delivers outstanding strength, resilience, and wear resistance. The brass insert ensures the female thread retains its durability throughout repeated usage, resisting deformation or stripping. The matte black finish enhances its visual appeal while providing superior grip and impact resistance.

This clamping knob operates reliably in demanding environments, withstanding working temperatures from -30°C to +85°C and melting point up to +215°C. It is tolerant of weak acids and offers excellent resistance to chlorinated hydrocarbons, making it suitable for settings exposed to chemicals or cleaning processes.

Typical applications include industrial machinery, access doors, drawer and panel handles, clamps and fixtures, and equipment where manual adjustment or secure fastening is required. Its through-hole configuration is particularly useful in setups requiring continuous threaded connections or adjustment along the bolt axis.

RS PRO clamping knobs maintain compliance with general industrial standards and are recognized for robust design, chemical resistance, and ergonomic operation. The model 686-171, part of RS PRO's broad range, is tailored to ensure user safety and reliability in mechanical and fluid power environments.

Multiple lobes design for comfortable manual torque application. Brass insert provides lasting thread strength. Compatible with M8 fasteners for versatile industrial use. Resistant to impacts, temperature extremes, and common chemicals.

Common uses: machinery, access panels, industrial clamps. Explore more RS PRO Clamping Knobs, levers, and handles for industrial hardware solutions on EnvMart.