Reinforced Black Control Knob 58x8mm Fit 6mm D Shaft 2 5 10 or 50 Pieces MBF016a


SKU: MBF016a Category:


Black Control Knob 

High Quality Multi Purpose 

Sold as a multi choice re quantity, see drop down box above.

2, 5, 10 or 50 Pieces – the more you buy the greater the discount.

To suit a 6mm diameter D shaped shaft. (See photo’s)

The knob has a knurled rim enabling a secure grip for precise adjustment.

Made from a tough polyvinyl material the ‘D’ socket on the knob is very sturdy being reinforced with a tensile steel clip ring

 The rotary switch we show in the photographs above has a solid multi switching action which the knob copes with easily.

 Please note:- When fitting the knob to the shaft these are so solidly put together that quite a lot of force is required.

If replacing a broken knob check that the D shaft is 5-6mm in diameter, because this knobs D shaped socket is reinforced with a high tensile steel ring this is critical – any larger and the knob would be very difficult to fit. 

Also check that the shaft hasn’t seized (quite often this is why the old knob breaks) if it moves freely then this replacement will be fine and as our minimum quantity is 2 – you get a spare!


Rim of knob 8mm deep.

58mm Diameter to outer edge

The D socket column is deeper than the rim of the knob @ 14mm

Depth of socket for shaft approx 12mm

These knobs are multi-purpose 

Suiting applications from the precise adjustment of potentiometers and tuning controls on radio’s etc. to domestic appliance switches cookers, fires, etc.

Basically if the shaft you need a knob for looks like the one pictured above and the shaft diameter is 5-6mm, then problem solved.

We Purchase Surplus Stock!!!

If you or your company has items similar to the above, or indeed any electronic components surplus to requirements, please contact us with details as we are keen to increase our stock profile.

 – As many of our lines come in to us as surplus – sometimes from high end ‘Milspec’ type manufacturers we are often able to pass on our savings to our customers.

Additional information




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