RS PRO Black Multiple Lobes Clamping Knob, M6

Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

RS PRO Phenolic Multiple-Lobed Handwheel Knobs

Knobs are used in a wide variety of applications in our day-to-day lives and perform many functions, from being used as fixed handles to being used to tighten, loosen, adjust, clamp and push other components or pieces of equipment. They are used in various applications, from industrial and construction machinery to audio and visual equipment.

These multiple lobed handwheels – also known as star shaped handwheels – provide an easily-gripped shape, with a varying number of lobes depending on the grip and pressure required. The knobs are fitted with either a protruding screw insert (male), made from a combination of impact-resistant thermoplastic bodies and zinc-plated steel inserts, or a threaded brass recess (female). Zinc-plated steel and brass both provide wear resistance for the threads to ensure that the threads last throughout general use and are not easily damaged or sheared.

Male knobs: M6 (RS 686092), M6 (RS 686109), M8 (RS 686115), M8 (RS 686121), M10 (RS 686137), M10 (RS 686143).

Female knobs: M5 (RS 686159), M6 (RS 686165), M8 (RS 686171), M10 (RS 686187).

Through threads: M6 (RS 686193).

Features & Benefits

  • Nylon Polyamide 6

  • Zinc plated steel studs and brass female and through threads

  • Matte black finish

  • Working temperature range of -30°C to +85°C

  • Melting point of +215°C

  • Tolerant of weak acids, with excellent resistance to chlorinated hydrocarbons


These star-shaped handwheel knobs are used in a variety of applications, with the shape providing an ergonomic grip for user comfort and added torque to be applied by hand. Commonly used as fixing or fastening solutions in a variety of industries:

  • Access doors

  • Drawers & panels (domestic and industrial)

  • Clamps and fixtures

  • Machinery



Attribute Value
Thread M6
Thread Diameter 6mm
Thread Length 9mm
Knob Shape Multiple Lobes
Mounting Type Threaded Through Hole
Knob Diameter 32mm
Hole Length 27mm
Insert Material Brass
Colour Black
470 In stock - FREE next working day delivery available
Price Each (In a Pack of 10)
£ 3.026
(exc. VAT)
£ 3.631
(inc. VAT)
Per unit
Per Pack*
10 - 40
50 - 90
100 - 290
300 +
*price indicative
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