Self Drilling Screws CCC03 Self-tapping is the ability of a screw to advance when turned, while creating its own thread. This ability is sometimes created by a gap in the continuity of the thread on the screw. These edges cut a thread as the screw is driven in to the material. The cutting edge drills away the material, leaving a hole for the screw to go into. More Details



Self-tapping is the ability of a screw to advance when turned, while creating its own thread. This ability is sometimes created by a gap in the continuity of the thread on the screw. These edges cut a thread as the screw is driven in to the material. The cutting edge drills away the material, leaving a hole for the screw to go into.



Quality is a continuous process of never ending improvement, every emplyee of Chan Chin C. must be involved and equally committed to quality self-drilling screw and sealing washers are designed for fixing polycarbonate, fibreglass, PVC and fibre cement sheeting to both timber and metal. Chan Chin C. is for your reference to get information about fixing polycarbonate roofing. For any further inquiries about roof screws and self drilling screws, please do not hesitate to contact us.