| 摘要 |
FIELD: construction.SUBSTANCE: fastening element comprises a bushing having external cylindrical and conical parts. The cylindrical part of the bushing is coupled at one end with a pressing plate, and at the opposite end - with the conical part coupled with a hollow tail, which comprises a cylindrical and a spacer parts. The fastening element is arranged as capable of installation of a spacer rod in it. The length of the bushing makes from 10 to 50% of the total length of the fastening element. On the inner surface of the cylindrical part of the bushing there is a narrowing made at the distance of at least 6 mm from the place of bushing coupling with the pressing plate.EFFECT: invention makes it possible to provide tight fit of a spacer rod head for increasing a value of element tear-out force, to provide for reduction of a cold bridge and increase of fastening element rigidity, and also to provide for the possibility to use various types of unified screws or other fastening parts.9 cl, 1 dwg |
