To provide a connector capable of firmly fixing a horizontal structural material such as a sill, a beam, etc., and a vertical structural material such as a column and a bolt for fixing the connector capable of easily fixing the connector to a construction structural material.

Reinforcing plates 3 are installed onto the left-right side faces of bent plates, which have horizontal plate sections 2a fastened onto a horizontal structural material such as a sill 6, a beam, etc., and vertical plate sections 2c fixed onto a vertical structural material such as a column 11 and to which holes 4, 5 for inserting fixtures such as bolts to these horizontal plate sections and vertical plate sections respectively are formed. Round corners 2b are formed to the connecting sections of the horizontal plate sections and vertical plate sections of the bent plates.