Special screw for fastening wood to steel substructures
Notice
To ensure shearing of the wings, the material thickness of the steel substructure must be at least 2.5 mm
Properties
Case-hardened steel
Zinc-plated, blue passivated finish
The wings ream out the wood larger than the thread diameter
The wings prevent force feeding of the screw and thus possible damage to the drill point
Technical specifications
Drilling capacity tII: 5.0 mm
Drive: Hexalobular drive T25