The countersunk chipboard screw is an electrogalvanised and yellow passivated screw with full or partial thread and internal star or cross recess. The countersunk head enables flush mounting in the wood. The partially threaded version allows wooden elements to be pulled tightly together. The screw is suitable for fastening load-bearing components in coated wood, hardwood, softwood and wood joints. Yellow galvanised protects better than blue galvanised with the same layer thickness.