Need a reliable, sturdy fastener for your DIY projects? This pack of 150 galvanized steel washers has you covered! Each washer is about 1-1/4 inches in diameter with a grooved design that helps guide screws or nails securely. The back is slightly convex, so it sits flush against surfaces like foam boards, plywood, or drywall, providing extra support and preventing pull-through. Made from rust-resistant galvanized steel, these washers are tough enough for indoor and outdoor use—whether you're hanging panels, securing insulation, or building shelves. They’re super easy to use: just align, drive your screw, and you're done. Great for home renovations, school projects, or workshop setups. With 150 pieces in the pack, you’ll have plenty for current jobs and future fixes. A small hardware upgrade that makes a big difference in stability!