fischer Installation Systems Main Catalog Page 412
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Concrete screw UltraCut FBS II 6 Plugs and anchors ■ Loads Concrete screw UltraCut FBS II R Permissible loads of a single anchor1) in normal concrete of strength class C20/25. For the design the complete current assessment ETA-17/0740 of 2025.01.08 has to be considered. Material/ surface Type Cracked concrete Non-cracked concrete Screw-in depth Minimum member thickness Maximum Installation torque Permissible tension (Nperm) and shear loads (Vperm); minimum spacing (smin) and edge distances (cmin) with reduced loads Permissible tension (Nperm) and shear loads (Vperm); minimum spacing (smin) and edge distances (cmin) with reduced loads hnom hmin Timp. max2) Nperm3) Vperm3) smin3) cmin3) Nperm3) Vperm3) smin3) cmin3) [mm] [mm] [Nm] [kN] [kN] [mm] [mm] [kN] [kN] [mm] [mm] FBS II 6 R R 60 100 240 1.4 7.2 35 35 3.4 7.2 35 35 FBS II 8 R R 50 100 450 1.9 4.1 35 35 3.3 5.9 35 35 R 65 120 450 4.3 6.1 35 35 6.7 8.8 35 35 FBS II 10 R R 55 100 450 2.1 4.6 40 40 4.0 6.6 40 40 R 65 120 450 2.9 6.0 40 40 6.7 8.5 40 40 R 85 140 450 7.6 18.4 40 40 13.1 20.9 40 40 FBS II 12 R R 60 110 650 2.1 5.3 50 50 4.8 7.5 50 50 R 75 130 650 5.2 15.2 50 50 5.7 21.8 50 50 R 100 150 650 12.0 23.9 50 50 17.1 26.2 50 50 1) 11 Design according to EN 1992-4:2018 (for static resp. quasi-static loads). The partial safety factors for material resistance as regulated in the ETA as well as a partial safety factor for load actions of γL = 1.4 are considered. As a single anchor counts e.g. an anchor with a spacing s ≥ 3 x hef and an edge distance c ≥ 1.5 x hef. Accurate data see ETA. 2) Maximum allowable torque for installation using any tangential impact screwdriver. For further technical information, see the ETA. 3) In the case of combinations of tensile and shear loads, bending moments with reduced or minimal edge and axial spacings (anchor groups), the design must comply with the provisions of the complete ETA and EN 1992-4:2018. We recommend using our anchor design software C-FIX. Loads Concrete screw UltraCut FBS II 6 R Permissible loads for a single anchor1) for multiple use of redundant non-structural applications* in normal concrete C20/25. For the design the complete current assessment ETA-24/0973 of 2025.01.08 has to be considered. Material/ surface Type FBS II 6 R Cracked concrete Non-cracked concrete Screw-in depth Minimum member thickness Maximum installation torque Permissible tension (Nperm) and shear loads (Vperm); minimum spacing (smin) and edge distances (cmin) with reduced loads Permissible tension (Nperm) and shear loads (Vperm); minimum spacing (smin) and edge distances (cmin) with reduced loads hnom hmin Tinst.max2) Nperm3) Vperm3) smin3) cmin3) Nperm3) Vperm3) smin3) cmin3) [mm] [mm] [Nm] [kN] [kN] [mm] [mm] [kN] [kN] [mm] [mm] R 45 100 240 0.9 2.5 35 35 1.7 2.5 35 35 R 60 100 240 2.0 6.0 35 35 3.4 6.0 35 35 * In addition to the load table above, the following must be considered for multiple fastening of non-structural redundant systems: A multiple fixing (redundant system) according to EN 1992-4 and CEN/TR 17079 is defined by - at least 3 fixing points (per attached element) with at least one anchor at each fixing point and a permissible load per fixing point of 1.4 kN - or by at least 4 fixing points with at least one anchor each fixing point and a permissible load per fixing point of 2.1 kN - Additionally, it has to be proven that the stiffness of the attached element shall be large enough to ensure that in case of excessive slip or failure of a fastener the load on this fastener or fixing point can be transferred to neighbouring fixing points without significantly violating the requirements on the attached element in the serviceability and ultimate limit state. For further details see EN 1992-4 section 7.3 and CEN/TR 17079. 1) Design according to EN 1992-4:2018 (for static resp. quasi-static loads). The partial factors for material resistance as regulated in the ETA as well as a partial safety factor for load actions of γL = 1.4 are considered. Maximum allowable torque for installation using any tangential impact screwdriver. For further technical information, see the ETA. 3) In the case of combinations of tensile and shear loads, bending moments as well as reduced or minimal edge and axial spacings (anchor groups), the design must comply with the provisions of the complete ETA and EN 1992-4:2018. 2) 412
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