Title: Listeskrue 3,5x45.pdf
For structural timber members, minimum spacing and distances for screws in predrilled holes are given in EN 1995-1-1:2008 (Eurocode 5) clause 8.3.1.2 and table 8.2 as for nails in predrilled holes. Here, the outer thread diameter d must be considered.For screws in non-predrilled holes, minimum spacing and distances are given in EN 1995-1-1:2008 (Eurocode 5) clause 8.3.1.2 and table 8.2 as for nails in non-predrilled holes.Unless specified otherwise in the technical specification (ETA or hEN) of cross laminated timber, minimum distances and spacing for screws in the edge surface of cross laminated timber members with a minimum thickness t = 10∙d and a minimum penetration depth perpendicular to the edge surface of 10∙d may be taken as (see Annex C): Spacing a1 parallel to the CLT plane Spacing a2 perpendicular to the CLT plane Distance a3,c from centre of the screw-part ina1 = 10 ∙ da2 = 4 ∙ dPage 12 of 37 of European Technical Assessment no. ETA-11/0027, issued on 2016-10-26a3,c = 7 ∙ d