Screw tightening structure

摘要

A screw tightening structure for a switch box wherein an embedded nut is provided for the switch box, there is a bilateral bolt providing screw portions for both sides thereof, one side of screw portions of a bilateral bolt is screwed to the embedded nut, a bus bar and a LA terminal of a connecting electric wire are fixed to the other screw portion of the bilateral bolt by tightening of the nut. Since the damaged bilateral bolt can easily be dismounted, even if the bilateral bolt is damaged, the matter thereof is can be settled by only the replace of the bilateral bolt.