Patent ID: 8517650
Filing Date: 2013-08-27
Classification: B25B,F16B

Abstract:
1. A removable blind fastener comprising: a first member having an elongate body with a head at one end, a second member adapted for axial movement relative to the first member, the second member having a threaded aperture and at least one adjustable finger, the adjustable finger having a flange remote from the head of the first member and the finger being adjustable between first and second positions in which the flange is at or within the circumference of the hollow body of the first member in the first position of the adjustable finger and the flange extends beyond the circumference of the hollow body of the first member in the second position of the adjustable finger; and a threaded member having a shaped head for engagement with the head of the first member and a threaded shaft which passes through a restriction in the head end of the first member, wherein the restriction prevents removal of the second member from the head end of the first member, and wherein the threaded shaft engages with the threaded aperture on the second member, said threaded shaft having a finger engagement surface remote from the shaped head, whereby, when in use, the threaded member is adapted to extend into the hollow body of the first member and to engage with the threaded aperture of the second member and the finger engagement surface of the threaded shaft is arranged to engage with the adjustable finger of the second member such that the fastener comprising a unit of the first member, second member and threaded member is insertable and removable through an aperture in each of two workpieces which need joining together with the head of the first member located against a face of one workpiece, and rotation of the threaded member in a first direction causes axial movement of the second member relative to the first member in a clamping direction causing the workpieces to be drawn together, and movement of the adjustable finger in the direction of its second position whereas rotation of the threaded member in a second direction causes axial movement of the second member relative to the first member in a releasing direction and movement of the adjustable finger in the direction of its first position.