FIELD: machine building.
SUBSTANCE: group of inventions relates to the machine building, and can be used during civil engineering to connect multiple plate parts, in particular construction slabs. The self-drilling expanding fixture is made completely out of metal plates, and contains expanding structure with multiple internal threads, and multiple plates to distribute forces and structure of the drill, completely made in top part of the said expanding structure. The drill structure includes shield for shavings and drill projected ahead from the shield for shavings, for self-drilling of the hole in multiple layers of the plate parts such that the expansion structure can be pushed through the said plate parts, and is fit installed in the drilled hole, and plates for forces distribution are completely located behind the said plate parts. Method of manufacturing of the said self-drilling expanding fixture is described.
EFFECT: securing of the plate parts during one installation stage is ensured, simple manufacturing process.
14 cl, 8 dwg
