RS PRO Clamping Knob Multiple Lobes Threaded Stud M6 Thread Length 20mm Knob Diameter 28 mm Polypropylene Soft 188-3450

RS PRO 188-3450 is a high-quality clamping knob designed for mechanical and industrial applications requiring reliable and ergonomic fastening solutions. This knob features a multiple lobes shape enabling improved grip and torque transmission during manual tightening or adjustment.

The threaded stud mount boasts a thread size of M6 and a thread length of 20 mm, making it compatible with a wide range of fastening applications that require secure mounting in machinery or equipment assemblies.

The knob's construction includes a two-part moulding method where the inner body is polypropylene, chosen for its robustness and chemical resistance, while the outer overmould utilizes a soft-touch thermoplastic elastomer (TPE-39) providing tactile comfort and enhanced grip safety during use.

The zinc-plated steel insert forms the male thread, ensuring excellent corrosion resistance and mechanical strength within mounting assemblies, suitable for industrial and manufacturing environments.

The RS PRO knob complies with UL 94 flame retardancy standards and exhibits a tensile strength of 11 MPa, high electrical resistivity (8 x 10^15 ohm.cm), and tear strength of 30 kN/m, ensuring durability and suitability for demanding conditions.

Additional technical attributes include a density of 1160 kg/m³, low water absorption of 0.05%, abrasion resistance measured at 190 mm³, moulding shrinkage of 1.8%, and an elongation at break of 470%, conferring mechanical resilience and long service life.

This clamping knob is ideal for use in industrial machinery settings, laboratories, mechanical tools, and equipment assemblies where reliable, ergonomic tightening is critical. Category: Clamping Knobs within Hand Tools for Industrial Tools & Equipment.