42mm Wafer Head Cement Board Screw Self-Drilling (200/Box)

Wafer Head Cement Board Screws with a 42mm length. Precision-engineered self-drilling fasteners for securely fixing cement-based boards to steel framing. Each screw features a self-drilling point capable of penetrating steel sections up to 3mm thick without pre-drilling, offering a clean, controlled drive. The wide wafer head ensures even pressure distribution across the cement board surface, reducing the risk of cracking or surface damage during installation. Countersinking ribs beneath the head regulate seating depth, producing a flush, professional finish. Manufactured for use with cement boards such as HardieBacker and similar sheet materials, these screws combine high performance with reliable, consistent results in both residential and commercial applications. The 42mm length offers deeper engagement, providing secure fixing for medium to heavy board thicknesses.