The invention concerns a fastener used to attach structural components that have aligned perforations with a nominal diameter (D), where the fastener comprises a minimum grip plane (Gmin) and a maximum grip plane (Gmax), and A screw (12) comprising an enlarged head and a threaded portion (22); A sleeve (30) comprising an enlarged head, a cylindrical tubular body and a tapped portion (36) that engages the threaded portion (22) of the screw, where the tapped portion (36) is adjacent to an internally smooth portion of the body (34) of the sleeve. This smooth portion has a thickness (E), a non-deformable area (A) adjacent to the head of the sleeve and a deformable area (B) adjacent the non-deformable area (A). The sleeve's deformable area (B) can be deformed into a bulb (48) intended to come into contact with a blind side (46) of the structural components. The deformable area (B) extends over a length (L) greater than a minimum length (Lmin) and less than a maximum length (Lmax), such as: Lmin=D/2+2E+(Gmax−Gmin); Lmax=(E/0.092) In particular, the invention applies to the assembly of aircraft structures.