Title: Listeskrue 3,5x45.pdf
21   til til   F ax,Rk 42tiltbt b 2   F ax,Rk 4t r 2   F ax,Rk 4tr  F ax,Rk 4Where: fh,b,k fh,r,k  d tb tr til My,k Fax,RkCharacteristic batten embedding strength [N/mm²] Characteristic rafter embedding strength [N/mm²] fh,r,k/fh,b,k Outer thread diameter [mm] Batten thickness [mm] The lower value of rafter thickness or screw penetration length [mm] Interlayer thickness [mm] Characteristic fastener yield moment [Nmm] Characteristic axial tensile capacity of the screw [N]fischer Power-Fast and Construction ScrewsDesignAnnex B4 of European Technical Assessment ETA-11/0027Page 37 of 37 of European Technical Assessment no. ETA-11/0027, issued on 2016-10-26 Annex C Minimum distances and spacing