Fabric Securing Staples securely anchor landscape fabrics, weed ground cover and drip irrigation tubing. These special galvanized steel anchor pins are angled at the ends for faster and easier installation. Use our pins to permanently and professionally anchor all of our fabrics. Staples are made of 11 gauge steel and are 6" long, with a 1" wide crown. Anchoring pins can also be used to secure the bottom of your fence.