In a highly stressed structure havi

In a highly stressed structure having a plurality of overlapping members and having tapered concentric holes formed within the overlapping portion of said members, and passing therethrough, an improved fastening means which comprises: a bolt having a shank tapered substan-tialy 0.020 inch per inch along the entire length of said shank, the diameters of the wall of said tapered shank being greater than the initial corresponding diameters of said concentric holes by 0.001 inch to 0.0045 inch, a head integrally formed on the larger end of said tapered shank, and an externally threaded section integrally formed on the smaller end of said tapered shank, the thread crest diameter of which threaded section is not greater than the diameter of said smaller end of said tapered shank, and a nut engaged with said threaded section, said bolt being inserted within said concentric holes, the head of said bolt being drawn into seating relationship with an outer surface of one of said members by the tightening of said nut