Abstract: A method of installing a threaded fastener from one side of a hole through a substrate. The fastener includes a collar and a bolt having a head, a threaded tail portion and a tool engagement portion extending from the tail. The method includes: (a) engaging the tool engagement portion with a bolt engagement portion of a tool (b) passing the bolt through to the far side of the hole and supporting it there by way of the tool, (c) passing the collar through the hole while supporting it with the tool; (d) assembling the bolt and collar to form the threaded fastener having a head larger than the hole; (e) engaging a nut to tighten the fastener; and (f) detaching the tool from the fastener. Separation of the bolt engagement portion and the tool engagement portion is prevented by a moveable member, which engages both portions.

Abstract: A fastening assembly for fastening a component to a concrete structure. The fastening assembly includes a plastic ferrule around and to which the concrete is cast. A threaded fastener engages the ferrule and extends from a surface of the concrete. The ferrule comprises an elongate tubular plastic body having two ends, a bore in the tubular plastic body, and at least one integral flange member extending radially outwardly from and around the tubular body at a position intermediate the ends of the tubular body for a major part of the circumference of the tubular body. The fastening assembly exhibits a resilience such that it can effectively recover from an axial load which displaces the fastener outwardly from the concrete by a distance greater than 2% of the length of the tubular body.

Abstract: A method of installing a threaded fastener from one side of a hole through a substrate. The fastener includes a collar and a bolt having a head, a threaded tail portion and a tool engagement portion extending from the tail. The method includes: (a) engaging the tool engagement portion with a bolt engagement portion of a tool (b) passing the bolt through to the far side of the hole and supporting it there by way of the tool, (c) passing the collar through the hole while supporting it with the tool; (d) assembling the bolt and collar to form the threaded fastener having a head larger than the hole; (e) engaging a nut to tighten the fastener; and (f) detaching the tool from the fastener. Separation of the bolt engagement portion and the tool engagement portion is prevented by a moveable member, which engages both portions.