Used on ROLAND/BOSS pedals, for example the DS-1, SD-1, MD-2 just to name a few ... pretty obvious where it fits but ...
The MEASURED (micrometer) thumb screw specifications are:
3mm thread
Thread pitch: 0.5
Threaded portion: 10mm length
Plastic thumbscrew head (knurled): 10.75mm diameter x 5.25mm deep
Only the spare part described in this advertisement is on offer, NOT THE PEDAL.
Ex our audio post production workshop spare parts. Funny thing about the music industry, although we were into many aspects of audio post, we were also often called upon to provide gear in an emergency or to make repairs to equipment. This spare part was specifically for the BOSS pedals but our techs often found these springs would suit other brands of effect pedals - so don't limit your thinking to just BOSS or ROLAND
BOSS (ROLAND) - Thumb Screw
Size is as described above
Genuine replacement thumbscrew
Plastic head is NOT degraded (brittle etc) and in excellent condition
Brand New Old Stock
SPECIAL NOTE: Not wanting to discourage replacement of the thumbscrew with the same type but it would have been MUCH better for BOSS to use a metal knurled head on these screws but alas to stay 'original' you need to use these plastic head jobbies!
The thumb screw is packed with a sealed plastic bag and will be supplied in individual bags