Patent ID: 6926483

Claim:
A joining assembly for joining a pair of structural members, which joining assembly comprises a bolt having a thread and a nut-like blind rivet, said bolt and said nut-like blind rivet being adapted to be inserted into mounting holes of said pair of structural members and to be threadingly engaged to each other, one of said mounting holes of said pair of structural members being formed as a polygonal mounting hole, said blind rivet being made of a resiliently deformable material and comprising a base member including a bore for receiving the thread of said bolt and having a closed outside provided with a helix means comprising a plurality of threads which are the same in number to the corners of said polygonal mounting hole and which are of an outer diameter substantially similar to the distance between two diagonally opposite corners of said polygonal mounting hole, such that when said bolt is threadingly engaged into said bore of said blind rivet said base member and said helix means are folded whereby the said plurality of threads of said helix means have parts of their flanks pressed against one of said structural members.