This is a 4-pack of our CT-450S3928 500k pots. CTS pots are the standard of the industry for good reason. Used by Gibson and Fender for many, many years, they are easily the most trusted brand in guitar pots. Ours are made specifically for us by CTS, to their tightest tolerance (10%). Appropriate hardware in included: lockwasher (use inside the guitar), flat washer & nut (use outside the guitar). The right parts to get the job done.
500k pots can be hard to find with the short threaded bushings that are ideal for mounting to pickguards and control plates. Ours are made for us using the CTS low-torque design that makes them easy to turn, like the ones that Fender uses (which are also made by CTS). These have a split-shaft design that is perfect for push-on plastic knobs that have no teeth molded in (like Fender knobs) or that have 24 teeth molded in (like Gibson knobs).