fischer Rögzítőrendszerek főkatalógusa Page 339
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Window frame screws FFSZ and FFS · Frame fixings / Stand-off installation Accessories Cover cap FFS-A FFS-A Colour Item No. Cap Cap height [Ø mm] [mm] Match Sales unit [pcs] Item FFS-A W 061560 white 15 4,8 FFS - flat head 100 FFS-A BR 061561 brown 15 4,8 FFS - flat head 100 Loads 5 Window frame screws FFSZ and FFS Recommended loads¹) of a single screw. Type FFSZ Screw diameter FFS [mm] 7.5 [mm] 30 40 60 30 40 60 Tension load Nrec [kN] 1.00 – – 1.00 – – Shear load Vrec [kN] 0.70 – – 0.70 – – cmin [mm] 30 – – 30 – – Anchorage depth hef ≥ 7.5 Recommended loads in concrete ≥ C20/25 Minimum edge distance²) Recommended loads in masonry Tension load Nrec in solid brick ≥ Mz 12 [kN] – 0.40³) 0.80 – 0.40³) 0.80 Shear load Vrec in solid brick ≥ Mz 12 [kN] – 0.303) 0.70 – 0.30³) 0.70 Tension load Nrec in solid sand-lime brick ≥ KS 12 [kN] – 1.00 – – 1.00 – Shear load Vrec in solid sand-lime brick ≥ KS 12 [kN] – 0.60 – – 0.60 – Tension load Nrec in vertically perforated brick ≥ Hlz 12 [kN] – – 0.25³) – – 0.25³) Shear load Vrec in vertically perforated brick ≥ Hlz 12 [kN] – – 0.40³) – – 0.40³) Minimum edge distance²) cmin [mm] – 40 40 – 40 40 ≥ AAC 2 [kN] – – 0.105) – – 0.105) ≥ AAC 4 [kN] – – 0.255) – – 0.255) cmin [mm] – – 40 – – 40 Recommended loads in aerated concrete Load4) Frec in aerated concrete Minimum edge distance²) ¹) Required safety factors are considered. As a single screw counts e.g. a screw with a spacing s ≥ 3 x hef and an edge distance c ≥ 1.5 x hef. ²) Minimal possible edge distance while reducing the recommended loads. ³) Rotary drilling. 4) Valid for tensile load, shear load and oblique load under any angle. 5) Without pre-drilling. 339
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