A threaded rod system It is used to join and anchor the threaded bars. Instead of using laps, welds or having to modify the bar, threaded steels can be joined directly axially using sleeves.

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The sleeves are designed to transfer the breaking load of the bar calculated with a safety factor of more than 1.15 – all connections and working assumptions can be made as if they were complete joints, no matter if they are loads of traction, compression or alternating. On the other hand, the continuous thread allows the bar to be cut at any point and its subsequent union with another bar by means of metal sleeves.The thickness of the thread guarantees optimal adhesionbetween the bar and the cement mortar.