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 Model Knob Type Material
RS Stock No. 107-3138
Mfr. Part No.21A11B10
BrandVishay
$73.63
Each
units
6.35mm 46mm Circular 25.4mm Silver Black - - Model 21 Dial -
RS Stock No. 499-977
BrandRS PRO
$2.45
Each
units
6.4mm 14mm - 16mm Silver - - - - Grub Screw Aluminium
RS Stock No. 259-7039
BrandRS PRO
$2.166
Each (In a Pack of 5)
units
6mm 28mm - 17mm Black White - - - Grub Screw Plastic
RS Stock No. 486-7188
Mfr. Part No.21PA11B10
BrandVishay
$48.51
Each
units
6.35mm 46mm Circular 24.6mm Chrome Black - - Model 21 Dial Plastic
RS Stock No. 499-949
BrandRS PRO
$5.92
Each
units
6.4mm 22mm - 13mm Silver - - - - Grub Screw Aluminium
RS Stock No. 167-9602
Mfr. Part No.15A31B010
BrandVishay
$56.032
Each (In a Box of 10)
units
6.35mm 17.7mm - 11.9mm Black Black - - - Dial -
RS Stock No. 509-721
Mfr. Part No.15A31B010
BrandVishay
$89.22
Each
units
6.35mm 17.7mm - 11.9mm Black Black - - - Dial -
RS Stock No. 508-885
Mfr. Part No.11A41B010
BrandVishay
$57.39
Each
units
6.35mm 25.4mm - 22.2mm Chrome Black - - - Dial -
RS Stock No. 167-9519
Mfr. Part No.11A41B010
BrandVishay
$60.344
Each (In a Box of 10)
units
6.35mm 25.4mm - 22.2mm Chrome Black - - - Dial -
RS Stock No. 259-6913
BrandRS PRO
$3.71
Each (In a Pack of 5)
units
6mm 16.2mm - 15mm Black White - - - Grub Screw Plastic
RS Stock No. 581-896
BrandRS PRO
$4.53
Each (In a Pack of 5)
units
6.35mm 14mm - 15.2mm Black - - - - - Plastic
RS Stock No. 463-8536
BrandRS PRO
$1.20
Each (In a Pack of 5)
units
11mm - - 5mm Black - - Collet Knob - - -
RS Stock No. 799-9402
Mfr. Part No.SP211 006 BLACK
BrandSifam
$6.741
Each (In a Pack of 10)
units
6mm 21mm - 13.5mm Black White - - - Collet Plastic
RS Stock No. 463-8479
BrandRS PRO
$5.57
Each
units
6.4mm 14.7mm - 16.2mm Black White - - - Collet -
RS Stock No. 504-2784
Mfr. Part No.25A11B010
BrandVishay
$130.11
Each
units
6.35mm 46mm - - Chrome Black - - - Dial -
RS Stock No. 498-845
BrandRS PRO
$5.29
Each
units
6.35mm 16mm - 14mm Black Black - - - Grub Screw Aluminium
RS Stock No. 167-9594
Mfr. Part No.26A21B010
BrandVishay
$114.749
Each (In a Box of 10)
units
6.35mm 30.6mm - 31.5mm Black Black - - - Dial -
RS Stock No. 167-9647
Mfr. Part No.25A11B010
BrandVishay
$53.171
Each (In a Box of 10)
units
6.35mm 46mm - - Chrome Black - - - Dial -
RS Stock No. 199-6306
Mfr. Part No.26A21B010
BrandVishay
$129.84
Each
units
6.35mm 30.6mm Circular 31.5mm Black Black - - Model 26 Dial -
RS Stock No. 581-969
BrandRS PRO
$4.728
Each (In a Pack of 5)
units
6, 6.35 mm, 35 mm 21mm - - Black White - Rotary Switch - - -