PROVA Fasteners Backer Board Screws 1-5/8"

PROVA Fasteners are purpose-built screws engineered for attaching PROVA XPS backer boards and accessories to wood or metal substrates. Designed for wet-area applications, they deliver reliable holding power without crushing the foam core. When paired with PROVA Washers (sold separately) and PROVA waterproofing components, they help maintain a fully watertight, warranty-approved installation from start to tile. Engineered for XPS Boards – Specifically designed for PROVA Board Plus+. won't crush or deform like standard drywall or wood screws. Corrosion-Resistant Build – Aluminum alloy steel resists rust and degradation for lasting performance, in wet areas. Wide-Head Washer Compatibility – Use with PROVA Washers (sold separately) to distribute load evenly, prevent pull-through. Waterproof System Integration – When used with PROVA-Seal, penetrations remain fully watertight. Fast, Clean Installation – Self-tapping design eliminates pre-drilling. Warranty Approved – Ensures PROVA Lif