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Large 7-Sided Fluted Black MF-B Guitar / Pedal Control Knob

Large 7-Sided Fluted Black MF-B Guitar / Pedal Control Knob

A series of large fluted 7-sided rotary control knobs. These knobs have a chunky design and a retro style and are an excellent choice for audio and musical instrument equipment. They have a large skirt at the base with a position indicator mark, with a position indicator line on the top. The top of the knob has a slight dome.
Knob Model
Quantity Unit Price
1+ £0.85
2+ £0.765
5+ £0.7225
10+ £0.68
20+ £0.6375
50+ £0.595
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Fitting

Knob TypeRotary
Shaft TypeRound
Shaft FixingGrub Screw
Hole Size6mm

Appearance

Identity ColourBlack
Body ColourBlack
Accent Colour
Position Indicator ColourWhite
Position Indicator ShapeLine, Dot

Measurements

Minimum Shaft Depth9.5mm
Maximum Shaft Depth12.6mm
Body Diameter17.7mm
Maximum Diameter23.2mm
Widthmm
Lengthmm
Height15.2mm
Additional Measurements
Unit Weight5.27g
Large 7-Sided Fluted Black MF-B Guitar / Pedal Control Knob

Hole Type

Round Hole

A knob designed for a round shaft has a smooth, cylindrical hole that matches the shaft's shape. This type of hole allows the knob to slide easily onto the shaft, relying on a grub screw / set screw or friction to keep it in place. This design is widely used in audio equipment, consumer electronics, and control panels due to its simplicity and versatility

A knob with a round hole can typically also be used on a D type shaft in the 180° position (where the position indicator is opposite to the flat of the D) and can often also be mouned to splined shafts in low torque applications.

A View from the underside of the knob when fitting a round hole knob to a D shaft, showing the grub screw position relative to the position indicator:

Measuring Rotary Knobs

Read more about measuring rotary knobs here.