To adjust the rotary angle position of a handle at the time of locking and unlocking.

A rotary stopper 12 for roughly regulating a locking rotation position and an unlocking rotation position is fixed for the rotary shaft of a handle metal fitting, stop adjustment screws 13A, 13B are screwed for the collision and match position of a pedestal body 10 with which the rotary stopper collides and matched, the rotary stopper 12 is collided with and matched to the head part of the stop adjustment screws 13A, 13B, and a screwing amount of the stop adjustment screws 13A, 13B is adjusted. Thereby the rotary position of the handle fitting 2 can be adjusted at the time of locking and unlocking.