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 Cap Size Indicator Colour Depth For Use With Model Knob Type Material
RS Stock No. 107-3138
Mfr. Part No.21A11B10
BrandVishay
$74.12
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 Circular 16mm Silver - - 15mm Potentiometer - Grub Screw Aluminium
RS Stock No. 259-7039
BrandRS PRO
$2.166
Each (In a Pack of 5)
units
6mm 28mm Circular 17mm Black - White - Potentiometer - 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. 509-721
Mfr. Part No.15A31B010
BrandVishay
$89.82
Each
units
6.35mm 17.7mm Circular 11.9mm Black - Black - - Model 15 Dial Plastic
RS Stock No. 499-949
BrandRS PRO
$5.92
Each
units
6.4mm 22mm Circular 13mm Silver - - 12mm Potentiometer - Grub Screw Aluminium
RS Stock No. 167-9602
Mfr. Part No.15A31B010
BrandVishay
$57.12
Each (In a Box of 10)
units
6.35mm 17.7mm Circular 11.9mm Black - Black - - Model 15 Dial Plastic
RS Stock No. 508-885
Mfr. Part No.11A41B010
BrandVishay
$57.80
Each
units
6.35mm 25.4mm Circular 22.2mm Chrome - Black - - Model 11 Dial -
RS Stock No. 167-9519
Mfr. Part No.11A41B010
BrandVishay
$60.749
Each (In a Box of 10)
units
6.35mm 25.4mm Circular 22.2mm Chrome - Black - - Model 11 Dial -
RS Stock No. 259-6913
BrandRS PRO
$3.71
Each (In a Pack of 5)
units
6mm 16.2mm Circular 15mm Black - White - Potentiometer - Grub Screw Plastic
RS Stock No. 581-896
BrandRS PRO
$4.568
Each (In a Pack of 5)
units
6.35mm 14mm Circular 15.2mm Black 0.5in - - Potentiometer - Low profile 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 10mm - - Collet Plastic
RS Stock No. 463-8479
BrandRS PRO
$5.57
Each
units
6.4mm 14.7mm - 16.2mm Black - White - - - Collet Plastic
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. 167-9594
Mfr. Part No.26A21B010
BrandVishay
$115.508
Each (In a Box of 10)
units
6.35mm 30.6mm Circular 31.5mm Black - Black - - Model 26 Dial -
RS Stock No. 498-845
BrandRS PRO
$5.29
Each
units
6.4mm 16mm Circular 14mm Black - Black 12mm Potentiometer - Grub Screw Aluminium
RS Stock No. 167-9647
Mfr. Part No.25A11B010
BrandVishay
$53.522
Each (In a Box of 10)
units
6.35mm 46mm Circular 25.4mm Chrome - Black - - Model 25 Dial -
RS Stock No. 504-2784
Mfr. Part No.25A11B010
BrandVishay
$130.11
Each
units
6.35mm 46mm Circular 22.2mm Chrome - Black - - Model 25 Dial -
RS Stock No. 465-9381
BrandRS PRO
$0.454
Each (In a Pack of 10)
units
6.4mm 19mm D Shaped 20mm Black, Red - White - - - Push-On Plastic