Black Reinforced Control Knob Numbered 1-10 Diam 38mmx13mm Deep MBE002B


21 in stock

SKU: MBE002B Category:






For sale here we have the above…

High Quality Multi Purpose Control Knob

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

The knob has a textured finish and 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 which permits a little flexing.

The shaft pictured is 6mm across the flat part of the shaft which fits the knob perfectly, satisfactory results could possibly be achieved with a shaft between 5 and 7mm across the flat but purchasers should be aware the ideal is 6mm.

Please note:- When fitting the knob to a larger diameter shaft than 6mm, these knobs are so solidly put together that quite a lot of force is required.

If replacing a broken knob check that the D shaft is ideally 6mm across the flat part of the shaft, because this knob’s D shaped socket is reinforced with a high tensile steel ring this is critical – any larger and the knob gets progressively more 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. 

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


Rim of knob 13mm deep.

38mm Diameter to outer edge

The D socket column is a approx. 2mm below the outer rim of the knob if a straight edge is placed across from rim to rim.

Depth of socket for shaft approx. 10mm

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, electric heaters etc.

Basically if the shaft you need a knob for looks like the one pictured above and the shaft diameter is 6 to 6.5mm, then problem solved.


These parts came to us as part of a lot of surplus stock from a large distribution Co. and have been kept in storage for some time, we have therefore classified them as ‘new other’. They are however in pristine condition still in their original packaging and ‘as new’ in all respects, the photographs are representative of their excellent condition, and, as with all our products they come with a full guarantee. 

If you have similar items to this, or indeed any electronic components that are surplus to requirements please contact us with details.

Additional information