ASTM A740-98 pdf download,Standard Specification for Hardware Cloth (Woven or Welded Galvanized Steel Wire Fabric). This specification ASTM A740-98 covers woven or welded galvanized steel wire fabric commercially known as hardware cloth. It is customarily used for window and screen door guards, tree guards, industrial machine guards, sand screens, and grain bins. It serves as a protective screen against rodents and is used for many other home, farm, and industrial purposes.