These potentiometers are custom made for Valley Sound according to our spec. The shaft is solid brass is thicker than your standard 8mm shaft, the shaft has the USA / CTS thread of 9.5mm, if your mounting hole is 8mm (which is normally the standard size for Asian import guitars) then you will need to widen the hole for this pot to work. The shaft is 18mm long for 500k which is perfect for mounting on wood and 15mm long for 250k which is perfect if you have a guitar that has a pickguard or control plate (like a Stratocaster or Telecaster) If you have a pickguard and want to use 500k pots then you will need to purchase either our 10mm spacer (which is also anti-spin) or a set of our extra nut and washer for CTS/USA spec pot and use one nut and washer behind the pickguard to get the correct height for your knob to fit perfectly on the other side.
PRICE IS FOR 1 POT - Please add the desired amount of pots to your cart.
Required hole size for mounting: 9.5mm (all the pickguards we sell at Valley Sound are USA spec with 9.5mm mounting holes)
Pot diameter: 24mm (full size pot)
Shaft length: 18mm (A500K/B500K); 15mm (A250K/B250K)
Shaft Threaded diameter: 9.5mm
Shaft diameter for knob: 6mm (split)
Includes 1 x washer and nut, if you want more to kind of create a spacer behind the pickguard please purchase "Nut and washer for USA / CTS Pot" separate (Not necessary for 15mm shaft)
250k pots are usually used for volume and tone control on single coil pickups
500k pots are usually used for volume and tone control on humbucker type pickups
Split shafts are suitable for push-on control knobs, solid shafts are suitable for knobs that have a tightening screw.
What is the difference between A pots and B pots? 
"
A" would denote an audio taper pot (most of the control happens between 7 - 10) and the "
B" suffix would denote a linear taper pot (more even roll-off between 0 - 10)
A and B pots however are interchangeable and the only difference is the taper of the pot, or "how gradually it rolls off". This is determined by player preference and either will work fine.
