An anchor assembly (A) for hollow walls comprises an anchor body (400) and a toggle member (231) that is displaceable between a first position wherein the toggle member (231) is substantially aligned with the anchor body (400) such that the anchor assembly (A) can be inserted in the wall (W) via a cutting distal end (325) of the toggle member (231), and a second position wherein the toggle member (231) extends behind the wall (W) at an angle relative to the anchor body (400) which extends through the wall (W). The toggle member (231) is held captive in the first position but is released and then rotated to the second position by a fastener (218) introduced in the anchor body (400). The fastener (218) threadably engages the toggle member (231) thereby drawing the toggle member (231) against a hidden side of the wall (W).

An anchor assembly (A) for hollow walls comprises an anchor body (400) and a toggle member (231) that is displaceable between a first position wherein the toggle member (231) is substantially aligned with the anchor body (400) such that the anchor assembly (A) can be inserted in the wall (W) via a cutting distal end (325) of the toggle member (231), and a second position wherein the toggle member (231) extends behind the wall (W) at an angle relative to the anchor body (400) which extends through the wall (W). The toggle member (231) is held captive in the first position but is released and then rotated to the second position by a fastener (218) introduced in the anchor body (400). The fastener (218) threadably engages the toggle member (231) thereby drawing the toggle member (231) against a hidden side of the wall (W).

An insert nut includes a body having an opening at a first end, an end wall at a second end and an internal cavity extending between the opening and the end wall. A seal is carried on the body around the opening. In addition, a fastening system is provided. That fastening system includes the insert nut and a cooperating fastener.

An insert nut includes a body having an opening at a first end, an end wall at a second end and an internal cavity extending between the opening and the end wall. A seal is carried on the body around the opening. In addition, a fastening system is provided. That fastening system includes the insert nut and a cooperating fastener.

A screw insert configured for repairing a stripped screw hole. The screw insert comprises three elongated prongs each having a distal end and a proximal end. The three elongated prongs are hingedly connected to each other only at the proximal ends thereof. The three elongated prongs are equiangularly spaced from each other so that longitudinal axes thereof are spaced apart. Each of the prongs has an outer surface and an inner surface. The screw insert is transformable from an open configuration to a folded configuration. The longitudinal axes of the prongs are coplanar in the open configuration. The longitudinal axes of the prongs define an acute angle therebetween in the folded configuration.

A fixing device 101 has a pair of complementary fingers 102,103 complementary pivot formations 121,122. Each has distal portion 104 and a proximal portion 105. Both have a flat surface 106, which abuts the same face in the other finger, both at the distal portions when the fixing is arranged for insertion in an aperture 107 in a board 108 and at the proximal portions when the fingers are arranged both for insertion and gripping of the board.

The distal portions each have a surface 111 with an edge 1112 common with the surface 106. This surface 111 comes into abutment with the back face 112 of the board 108. The proximal portion is generally hemispherical to allow rotation within the aperture 107. A lug portion 1161 generally in the direction of the distal portion 104.

FIXING DEVICE A fixing device 101 has a pair of complementary fingers 102,103 complementary pivot formations 121,122. Each has distal portion 104 and a proximal portion 105. Both have a flat surface 106, which abuts the same face in the other finger, both at the distal portions when the fixing is arranged for insertion in an aperture 107 in a board 108 and at the proximal portions when the fingers are arranged both for insertion and gripping of the board. The distal portions each have a surface 111 with an edge 1112 common with the surface 106. This surface 111 comes into abutment with the back face 112 of the board 108. The proximal portion is generally hemispherical to allow rotation within the aperture 107. A lug portion 1161 generally in the direction of the distal portion 104. With the fingers engaged and their distal portions brought as close to alignment as possible, the Tee projections 114 abut the flanges 109 at angled faces 135. The contours of the fingers are such that they can be inserted into the aperture 107 until the distal portions 104 enter the aperture.

Passage of these through the aperture is inhibited by the lugs 1161, specifically by abutment of the angled back surface 118. Pressure on the angular relief surfaces 120 of the abutments 1162 urges the lugs into the front face 135 of the board 108. The reaction of the board acts about the pivot centrally of the aperture, tending to turn the fingers about the lugs under the constraint that they are pivoted together. The fingers are turned with the distal portions coming to lie on the backside of the board. Th

An anchoring device for insertion in a hole provided in a structure such as a wall (hollow or solid) comprises proximal and distal sections. The proximal section includes a head defining an aperture for receiving a fastener, and the distal section includes a pair of expandable wings displaceable between collapsed and expanded positions. Each wing is biased towards its expanded position such that the wings can engage the structural material delimiting the hole or a distal surface of the structure. The distal section comprises, proximally of the wings, a variable-length flexible portion for allowing the wings to engage the distal surface of the structure for various structure thicknesses. The distal section comprises, distally of the wings, a tip section adapted to spread outwardly when engaged by the fastener. The proximal section comprises a pair of legs each having a toothed rack for engaging the structural material.

The invention is in the field of removable fasteners for use in clamping components together, where the fastener may be inserted into pre-drilled apertures in the components and used in situations where it is not possible to access the reverse of the components. The invention particularly relates to use in clamping components with very narrow pre-drilled apertures.

The invention is in the field of removable fasteners for use in clamping components together, where the fastener may be inserted into pre-drilled apertures in the components and used in situations where it is not possible to access the reverse of the components. The invention particularly relates to use in clamping components with very narrow pre-drilled apertures.

An example pivot nut assembly includes a pivot body and a nut. The nut is pivotably engaged in the pivot body.