A Fastening system that includes a bar with helical Ribs, which serves to reinforce the Rock Mass in the Mining Industry and the civil construction, comprising a plate with a Central Hole provided at the edges of thread and a nut Forged NUTS if composed of two semi Metrics that are faced to surround the surface of the helical Rod; Process.

摘要

A Fastening system that includes a bar with helical Ribs, which serves to reinforce the Rock Mass in the Mining Industry and the civil construction, comprising a plate with a Central Hole provided at the edges of thread and a nut Forged NUTS if composed of two semi Metrics that are faced to surround the surface of the helical Rod; Process.