TCS TWIST 12A4 is the innovative stainless steel helical bar A4 class used for anchorages, connections and dry seams. The helix shape and strongly hardened steel give the bar a high strength and hardness, thus allowing a mechanical connection.
The helical bars TCS TWIST 12A4 thanks to the special shape and the strongly hardened stainless steel allow for a totally dry connection without the use of resins or mortars for installation. For the installation in the substrates to be consolidated and/or to connect, a pilot perforation must be made for the entire insertion depth.
The bar, during insertion, generates an incision similar to a thread with a constant pitch which allows the interlock of the same to the substrate. The seal of the bar to the substrate is easily verifiable by a pull test with the instrument TCS 3T Tie Twist Tester and based on the type and consistency of the substrate, of the pilot perforation size and the depth of insertion.