fischer screws maincatalogue Pagina 149
Commercieel klantenaanbod**Beste verkopers van Fischer
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Screw catalogue 2020 Dimensions Permissible tension load Fax [kN] for: Nominal screw diameter: d = 8.0 mm Characteristic tension load Fax, α, Rk [kN] for: Nominal screw diameter: d = 8.0 mm Characteristic screw tensile load capacity: Wood quality: Characteristic timber gross density: Number of screws per connection: Thread extraction parameter: Head pull-through parameters countersunk head Timber thickness t ≥ 20 mm: Head diameter countersunk head: Permissible head pull-out resistance counterdunk head for α ≥ 30°: ftens,k = ρk = n= fax,k = 25.0 C24 350 1 11.1 kN [-] kg/m³ unit N/mm² fhead,k = dh = 12.0 14.5 N/mm² mm Fax,α,Rk = 2.52 kN Characteristic screw tensile load capacity: Wood quality: Characteristic timber gross density: Number of screws per connection: Usage class: Class of load duration: Modification factor:: Partial safety factor for resistance: Partial safety factor for action: Thread extraction parameter: Head pull-through parameters countersunk head Timber thickness t ≥ 20 mm: Head diameter countersunk head: Permissible head pull-out resistance counterdunk head for α ≥ 30°: ftens,k = ρk = n= NKL: KLED: kmod = γM = γF = fax,k = 25.0 C24 350 1 2 short 0.9 1.3 1.4 11.1 kN [-] kg/m³ unit [-] [-] [-] [-] [-] N/mm² fhead,k = dh = 12.0 14.5 N/mm² mm zul. Fax,α = 1.25 kN zul. Fax Fax,k α 12 α lef lef Screw-in angle α [ ° ] to the grain of the wood Screw-in angle α [ ° ] to the grain of the wood lef lef [mm] 90 to 45 40 35 30 25 20 16 [mm] 90 to 45 40 35 30 25 20 16 190 16,87 15,56 14,25 12,94 11,62 10,31 9,26 190 8,34 7,69 7,05 6,40 5,75 5,10 4,58 195 17,32 15,97 14,62 13,28 11,93 10,58 9,50 195 8,56 7,90 7,23 6,56 5,90 5,23 4,70 200 17,76 16,38 15,00 13,62 12,23 10,85 9,75 200 8,78 8,10 7,42 6,73 6,05 5,37 4,82 210 18,65 17,20 15,75 14,30 12,85 11,40 10,24 210 9,22 8,50 7,79 7,07 6,35 5,64 5,06 220 19,54 18,02 16,50 14,98 13,46 11,94 10,72 220 9,66 8,91 8,16 7,41 6,66 5,90 5,30 230 20,42 18,84 17,25 15,66 14,07 12,48 11,21 230 10,10 9,31 8,53 7,74 6,96 6,17 5,54 240 21,31 19,65 18,00 16,34 14,68 13,02 11,70 240 10,54 9,72 8,90 8,08 7,26 6,44 5,78 250 22,20 20,47 18,75 17,02 15,29 13,57 12,19 250 10,98 10,12 9,27 8,42 7,56 6,71 6,03 260 23,09 21,29 19,50 17,70 15,91 14,11 12,67 260 11,42 10,53 9,64 8,75 7,87 6,98 6,27 270 23,98 22,11 20,25 18,38 16,52 14,65 13,16 270 11,86 10,93 10,01 9,09 8,17 7,25 6,51 280 24,86 22,93 21,00 19,06 17,13 15,19 13,65 280 12,30 11,34 10,38 9,43 8,47 7,51 6,75 290 25,00 23,75 21,75 19,74 17,74 15,74 14,13 290 12,73 11,74 10,75 9,76 8,77 7,78 6,99 300 25,00 24,57 22,50 20,42 18,35 16,28 14,62 300 13,17 12,15 11,12 10,10 9,08 8,05 7,23 310 25,00 25,00 23,25 21,10 18,96 16,82 15,11 310 13,61 12,55 11,50 10,44 9,38 8,32 7,47 320 25,00 25,00 24,00 21,79 19,58 17,37 15,60 320 13,74 12,96 11,87 10,77 9,68 8,59 7,71 330 25,00 25,00 24,75 22,47 20,19 17,91 16,08 330 13,74 13,36 12,24 11,11 9,98 8,86 7,95 340 25,00 25,00 25,00 23,15 20,80 18,45 16,57 340 13,74 13,74 12,61 11,45 10,29 9,12 8,19 350 25,00 25,00 25,00 23,83 21,41 18,99 17,06 350 13,74 13,74 12,98 11,78 10,59 9,39 8,44 360 25,00 25,00 25,00 24,51 22,02 19,54 17,55 360 13,74 13,74 13,35 12,12 10,89 9,66 8,68 370 25,00 25,00 25,00 25,00 22,63 20,08 18,03 370 13,74 13,74 13,72 12,46 11,19 9,93 8,92 380 25,00 25,00 25,00 25,00 23,25 20,62 18,52 380 13,74 13,74 13,74 12,79 11,50 10,20 9,16 Max. screw length: l = 400 mm; Head height: hh = 6,5 mm (cylinder head); h2 = 7,4 mm (countersunk head); Peak length lt = 5,0 mm; max. eff. thread length lef = 388,5 mm. Available screw lengths: 95, 125, 155, 195, 220, 245, 270, 295, 330, 375, 400 mm. Edge and axle distances according to ETA-12/0073 or DIN EN 1995-1-1 + NA. ETA-12/0073 and DIN EN 1995-1-1 shall be observed in their entirety. The loads in timbers with other strengths are obtained by the conversion factor: The indicated loads are only valid for single screws. The effective number of bolts with more than one bolt per connection is determined by the formula: nef = n0,9 according to DIN EN 1995-1-1, Section 8.7.2 forula (8.41). All mechanical values given are to be considered in relation to the assumptions made and are design examples. Attention: This is only a planning aid. Projects are to be dimensioned exclusively by structural engineers or structural engineers! All values are subject to typesetting and printing errors. 149
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