Semicircular screws - Import export

Thread: metric, Norman, accuracy class medium (6g) The wing screw is recommended for fastening and connecting assemblies and parts in mechanical engineering, construction: where fast and frequent disassembly of the mounting joint is required. The screw is equipped with "flaps" for tightening the unscrewing manually, which allows you to work without special tools.

The main purpose is to attach heavy structures to concrete, building stone and brick. It can be used for mounting to thin concrete partitions. The recommended load should not exceed 25% of the maximum (pull-out load). The recommended load increases in proportion to the increase in concrete strength.