To firmly connect one member whose tip part is bent in a crank shape and the other member in which a connecting hole is formed as well as to connect both members to each other with excellent outward appearance by covering a connecting part upper surface of both members.

A connecting tool having a bag-shaped connecting tool main body 2 having a flange part 5 protrusively arranged outward in an outer peripheral edge part of an opening part, one or two or more elastically deformable locking claws 7 whose tip parts are formed on an peripheral wall of the connecting tool main body 2 in a condition of protruding outward from the peripheral wall outside surface, a lock piece 3 rotatably connected to the peripheral wall of the connecting tool main body 2 through a hinge connecting part 13, a lock protrusive part 10 protrusively arranged on the inside surface side of the lock piece 3 and a lock piece locking part 9 which is arranged in the opening part peripheral edge part of the connecting tool main body 2 and locks rotation of the lock piece 3 by engaging with the lock piece 3 by rotating the lock piece 3, is provided. A connecting tool where a cover piece 4 is protrusively arranged inward from an upper edge part of the lock piece 3, is also provided.