Potentiometer Knobs

A potentiometer knob is an accessory that is used as a control knob for a potentiometer.

How do they work?
Many potentiometers knobs are simply push on and can easily be fitted to the potentiometer shaft. Others use a fixing such as a nut, grub screw or blind set screw to fix them in place. The knob can be used to turn the potentiometer, like a volume control knob on a stereo.

What different types are there?
A huge variety of potentiometer knobs are available to suit virtually any application. When choosing the right knob for your potentiometer, you must always check the shaft diameter of the potentiometer. This helps to narrow your options down. Most knobs are cylindrical, but rectangular shaped knobs are available for slider potentiometers. Potentiometer knobs are available in different colours.
Some potentiometer knobs feature a small skirt at the bottom, which can have numbers around it. Others feature a pointer or coloured indicator, which can be helpful for seeing how far a potentiometer has been turned.
Some potentiometer knobs are also multi-turn. They may feature a locking mechanism and a turn counter which shows the number of rotations of the potentiometer knob.
Material
The material that the knob is manufactured from can help you to determine whether it is suitable for your application. Potentiometers knobs are commonly manufactured from plastic (often with a brass insert) or aluminium, and some have soft touch rubber finishes.

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Description Price Shaft Size Knob Diameter Shaft Type Knob Height Body Colour Indicator Colour Depth For Use With Knob Type Material
RS Stock No. 465-9381
BrandRS PRO
TWD6.90
Each (In a Pack of 10)
units
6.4mm 19mm D Shaped 20mm Black, Red White - - Push-On Plastic
RS Stock No. 467-2463
BrandRS PRO
TWD115.00
Each
units
6.4mm 19mm - 25.4mm Silver White - - Grub Screw Aluminium
RS Stock No. 259-6890
BrandRS PRO
TWD29.60
Each (In a Pack of 5)
units
6mm 16.2mm - 15mm Black, Red White - - Grub Screw Plastic
RS Stock No. 499-961
BrandRS PRO
TWD210.00
Each
units
6.4mm 38mm - 16mm Silver - - - Grub Screw Aluminium
RS Stock No. 222-014
BrandRS PRO
TWD104.20
Each (In a Pack of 5)
units
6.35mm 42mm - 20mm Black White - - - Plastic
RS Stock No. 107-4771
Mfr. Part No.CT 26 6A
BrandAtoms
TWD1,559.00
Each
units
6.35mm 28mm - 31.5mm Chrome Black - - Dial -
RS Stock No. 465-9814
BrandRS PRO
TWD51.00
Each
units
3.2mm 10mm - 12.5mm Silver White - - Grub Screw Aluminium
RS Stock No. 466-4995
BrandRS PRO
TWD35.40
Each (In a Pack of 5)
units
6.4mm 21mm - 17mm Black White - - Grub Screw Plastic
RS Stock No. 463-8457
BrandRS PRO
TWD74.00
Each
units
6.4mm 14.7mm - 16.2mm Black - - - Collet -
RS Stock No. 465-9864
BrandRS PRO
TWD142.00
Each
units
6.4mm 30mm - 12.5mm Silver Black - - Grub Screw Aluminium
RS Stock No. 467-6702
BrandRS PRO
TWD14.00
Each (In a Pack of 10)
units
6.4mm 13mm D Shaped 15mm Grey Green - - Push-On Plastic
RS Stock No. 259-6957
BrandRS PRO
TWD28.40
Each (In a Pack of 5)
units
6.35mm 16.2mm - 15mm Black, Grey White - - Grub Screw Plastic
RS Stock No. 581-931
BrandRS PRO
TWD103.40
Each (In a Pack of 5)
units
6.35mm 28.4mm - 15.2mm Black White - - - Plastic
RS Stock No. 892-6650
Mfr. Part No.5106E
BrandOhmite
TWD1,286.00
Each
units
6.35mm 82.6mm - - Black - - 6.35mm Shafts Pointer Knob Aluminium
RS Stock No. 892-6654
Mfr. Part No.5116AE
BrandOhmite
TWD647.00
Each
units
6.35mm 38.1mm - - Black - - 6.35mm Shafts Pointer Knob Aluminium
RS Stock No. 111-0502
Mfr. Part No.S151 250BK
BrandSifam
TWD89.00
Each (In a Pack of 10)
units
6.35mm 15.5mm - 14.3mm Black Grey - - Collet Plastic
RS Stock No. 111-0760
Mfr. Part No.C211 BLUE
BrandSifam
TWD14.20
Each (In a Pack of 10)
units
- 21mm - - Blue White - Collet Knob - Nylon
RS Stock No. 811-147
Mfr. Part No.21A21B010
BrandVishay
TWD1,762.00
Each
units
6.35mm 46mm - 25.4mm Black White - - Dial -
RS Stock No. 299-5051
Mfr. Part No.3/03/TPN130-006/237/232
BrandSifam
TWD22.40
Each (In a Pack of 5)
units
6mm 18.9mm Circular 15mm Black Green - - Push-On -
RS Stock No. 465-8877
BrandRS PRO
TWD166.80
Each (In a Pack of 5)
units
6.35mm - - 14.3mm Black White - - Grub Screw Plastic