Knob - Fender^®, Black J-Bass, Set Screw

This knob set is designed to be used with a 1/4" solid shaft. The knobs attach with a set screw.

These knobs use a hex screw.

If your bass has 1/4" sold shaft knobs then these will work. If it has split shafts then these will not work. You will want to remove your existing knobs to insure a proper fit.