FIXING

摘要

Disclosed is a fixing (310) for attaching items to a hollow wall or the like having a substrate in front of a void, the fixing (310) including a bolt (320) rotatable about a fixing axis A, the bolt (310) having a head at a proximal end of the fixing and a substrate piercing part 226 at a distal end of the fixing for forming an aperture through the substrate at least into the void when said bolt is forced into the substrate and/or rotated, the bolt having a shank part (321) which is at least partially threaded, the fixing further including an anchor sleeve (330) mounted or mountable on the bolt, said sleeve having an outer diameter and overlaying at least a portion of the shank of the bolt and having a collar (338) at or adjacent the proximal end of the fixing extending radially outwardly beyond said outer diameter, and having a portion (332) adjacent the distal end of the fixing including a thread complementary with the thread of the bolt, said anchor sleeve having an initial unexpanded position (as shown) in which the shank of the bolt is partially exposed from the sleeve and a final expanded position in which one or more arms of the anchor sleeve are forced radially outwardly, characterised in that said arms include one or more first elements expandable into the substrate as the initially exposed shank of the bolt is forced or drawn toward substrate and one or more second elements expandable into the void during movement of the collar toward the proximal end, on the thread of the bolt, and in that the first element(s) is(are) closer to the head than the second element(s).