FIXING ARRANGEMENT COMPRISING BIFUNCTIONAL SCREW

摘要

The invention relates to fixing arrangement (10) comprising a bifunctional screw (12). The bifunctional screw (12) is screwed directly into a bore (14) which has been previously provided with or without a curable compound and which is introduced into a solid anchoring base (16). The bifunctional screw (12) has a screw head (18) with a tool application element, a substantially cylindrical shaft (20), preferably a tip (22) which is tapered in a truncated cone-like manner or a truncated pyramid-like manner, and at least two, preferably three thread pitches (24, 26, 28) which are formed parallel to one another and which extend in a helical manner at least partly along the length of the shaft (20). The diameter of the bore (14) without the curable compound is smaller than the diameter of the bore (14) with the curable compound. In both cases, however, the bore (14) is such that all of the thread pitches (24, 26, 28) of the bifunctional screw (12) cut into the anchoring base (16).

主权项

1. Fixing arrangement with a bifunctional screw, wherein the bifunctional screw is screwed directly into a bore which has been previously provided with or without a curable compound and which is introduced into a solid anchoring base, wherein the bifunctional screw has a screw head with a tool application element, a substantially cylindrical shaft, preferably a tip which is tapered in a truncated cone-like manner or a truncated pyramid-like manner, and at least two, preferably three thread pitches which are formed parallel to one another and which extend in a helical manner at least partly along the length of the shaft, and wherein the diameter of the bore without the curable compound is smaller than the diameter of the bore with the curable compound, while in both cases the bore is such that all of the thread pitches of the bifunctional screw cut into the anchoring base.