Description
If this knob looks familiar, that’s because greatness bears repeating. This black knob with a silver mirror cap is the identical twin to our knurled shaft "Middle" knob—now giving your 1/4" smooth shaft potentiometers that legendary, no-nonsense aesthetic that has defined pedalboards for decades.
This style knob is perhaps most commonly seen on the Boss DS-1 Distortion pedal, nestled oh-so-practically between its skirted knob siblings.
It’s the perfect choice for builders who want a uniform, professional look across a multi-knob layout without breaking the "iconic" vibe. This knob scales perfectly alongside our 20mm, 27mm, 33mm, and 45mm Boss-style offerings.
Despite the knob's compact 14mm outer diameter, it’s big on detail: a subtle knurled grip for precision adjustments, a high-visibility white indicator line, and a silver mirror cap to tie your hardware together. The Middle knob is a versatile staple that fits right in, no matter how crowded your enclosure gets.
For 1/4" smooth shaft potentiometers.
The Specs:
Boss style knob
Plastic with indicator
For 1/4" (6.4mm) smooth shaft pots
13mm (1/2") tall
14mm (1/2") outer diameter at the base
Note: We've got six different sizes of classic fluted Boss-style knobs, from extra-small (14mm) to extra-large (45mm). Check out the measurements for a size comparison.
Extra-Small (the knob you're currently looking at): 14mm x 13mm, also in knurled shaft
The Tall Boy: 16mm x 12mm
Small: 20mm x 12mm in 1/4" smooth shaft and knurled shaft
Medium: 27mm x 16mm
Large: 33mm x 16mm
Extra-large: 45mm x 20mm
Tip: The term "Boss" refers to the aesthetic design of this knob, with the mirror cap inset into a plastic knob shell. A Boss-style knob will not automatically fit all Boss pedals. The right fit depends on the shaft size of the knob's potentiometer. Read this post to figure out what kind of knob you need: https://lovemyswitches.com/news/what-knob-will-fit-on-my-gear/
