An interchangeable fishing lure having a sinkable head portion attached to a fishing line at its top, an integral bolt extending downward from the bottom of the head portion and threaded into the top of a separate tail portion, with the bottom of the tail portion having a fish hook attached thereon. The bottom of the head portion and the top of the tail portion having matching flat surfaces which are fully engaged when the head portion and the tail portion are fully screwed together on the bolt which engagement prevents the head and the tail portions from accidentally loosening or separating, but it permits the fisherman to easily unscrew the tail portion and interchange it with a different tail portion to suit different species of fish and varying fishing conditions without having to also remove and reattach a different head portion head to the fishing line.