SEAT RECLINER FOR VEHICLE

A seat recliner for a vehicle includes parts which are respectively used in opposite sides of a seat and compatible with each other. The seat recliner includes: a first flange having guide parts, guide spaces, and a first through hole; a plurality of lock gears having a guide protrusion; a lock cam having a second through hole; a control part having a third through hole and a guide slit; and a shaft penetrating through the first through hole, the second through hole, and the third through hole so that the shaft rotates with the lock cam and the control part.