Hillman Zinc-Plated Steel 1 in. SAE Flat Washer, 10-Pack Sheet Vinyl High-performance R-30 unfaced fiberglass batts

High-performance R-30 unfaced fiberglass batts designed for thermal efficiency in walls

A: Drill a properly sized hole

architectural polish to exposed timber or custom built-ins

cleaner edges

Upgrade your fasteners to Grade 8 strength—add this 10-pack to your cart and build with confidence

Hillman Zinc-Plated Steel 1 in. SAE Flat Washer, 10-Pack Sheet Vinyl High-performance R-30 unfaced fiberglass battsHillman 1 in. Zinc Plated SAE Flat Washer (10 Pack) Durable zinc plated steel flat washers sized for 1 inch SAE applications. Designed to distribute load and reduce surface wear in bolted connections, ideal for general hardware and home improvement projects. Key Features: Corrosion Resistance: Zinc plated steel finish helps prevent rust for indoor and outdoor use. Load Distribution: Flat washer design spreads fastener load to protect surfaces and