Wallboard Fasteners for Waterproof Shower Systems HYDRO-BLOK® Wallboard Washers are galvanized steel fastening washers designed to secure HYDRO-BLOK wallboards to wood and metal framing. Their 1-1/4" diameter provides a broad fastening surface while working with HYDRO-BLOK screws to help hold foam backer boards securely during installation. Galvanized Steel Construction for Wet Areas Manufactured from galvanized steel, these washers provide corrosion resistance for use in waterproof shower systems and other moisture-prone tile installations. The durable construction is designed for long-lasting performance in residential and commercial wallboard applications. Alignment Tabs for Faster Installation Integrated alignment tabs help position the washer during fastening, making installation more efficient while maintaining proper placement with compatible HYDRO-BLOK screws. The washers are specifically designed for use within HYDRO-BLOK wallboard systems. Bulk Quantity for Professional Projects Each bucket includes 1,000 wallboard washers, providing ample fastening hardware for complete shower installations, multiple waterproofing projects, and large foam backer board installations.
