Ceiling nail W-DN

Anchors in a non-structural system based on a redundant design in concrete (for all load directions)

The partial safety factors of the resistances regulated in the approval and a partial safety factor of the effects of Y_F = 1.4 have been taken into account. Please refer to the European Technical Approval Guidelines (ETAG), Appendix C, for information on combining tensile and transverse loads, influence of the edge distance and groups of anchors.

Permissible load when exposed to fire

The partial safety factors for load-bearing capacity on exposure to fire of Y_M,fi = 1.0 as recommended in the approval and the partial safety factor of the effects of Y_F = 1.0 have been taken into account.

Nominal drill diameter and diameter of cutting edges of the drill

Tungsten carbide hammer drill bits must comply with the specifications set out in the information leaflet of the Deutsches Institut für Bautechnik (German Institute of Civil Engineering - DIBt) and the Association of German Tool Manufacturers (FWI) on the "characteristic values, requirements and tests for masonry drill bits with tungsten carbide cutting body which are used for the manufacture of drilled holes for anchoring". Würth hammer drill bits meet the specifications set out in the information leaflet.