These are Set Screw knobs. They are made for smooth shaft pots but will work on any pot shaft because of the set screw.  If the knobs don't fit, send them back and I will refund your money. I can also customize these knobs to match any guitar color and knob set, and i can also do custom pick guards, black plates and truss covers to match knobs. I can list in a set of 2 knobs, 3 knobs and 4 knobs. Let me know if you need more or less than what is listed and I will post them for you. Message me for custom orders.. let me know if you have any questions.. And check out my Facebook and instagram page at..JAT CUSTOM GUITAR PARTS. To see more of my work and other parts. Thanks.JAT