250K vs. 500K Generally, 500K-ohm pots are used with humbuckers and 250Ks are used with single-coil pickups. You can use any value you like, but a 250K will give a slightly warmer tone than a 500K pot. The 250K pot bleeds off (attenuates) some of the high frequencies to ground.
6mm split shaft, coarse knurling
M7 x 0.75
Required mounting hole diameter
Flat washer and two mounting nuts included
To see the knobs available for these pots, click here.