Patent ID: 7246978

Claim:
An apparatus comprising a body, a nut holder, and a nut member, wherein the body comprises an end surface, a bolt insertion hole, and a nut retainer, a bolt being insertable into the bolt insertion hole from the end surface of the body in a predetermined inclined direction and past the nut retainer before the bolt is fastened to the nut member, the nut retainer positioned at an insertion end of the bolt insertion hole in the body and against which a nut member having a threaded hole abuts, and the nut holder mounted on the body for supporting the nut member securely in the predetermined inclined direction before the bolt is fastened, wherein the nut holder comprises an engaging portion engaging with the body, and a side surface support portion supporting a side surface of the nut member, and an end surface support portion supporting an end surface of the nut member, wherein the side surface support portion forms a V-shaped groove, wherein the nut member is retained and supported in the predetermined inclined direction at a position between the nut retainer and the nut holder and continuous with the bolt insertion hole; and wherein, when the bolt is fastened to the nut member, a fastening force is applied directly to the nut retainer by the nut member and not to the nut holder.