Self Drilling Fibre Cement Screw
The CBSDQ screw is suitable for fixing fibre cement board/timber to steel such as modular housing construction. It has a countersunk ribbed flat head, fine thread and drill point with wings. The wings ream a hole larger in the cement board/timber and break off when they hit the steel. This allows the cement board/timber to be pulled tight to the steel. Suitable for steel up to 3mm thick.