National Hardware's 6 Pack Bearclaw Hanger & Anchors in Black Oxide are designed to work best with D-rings, wire, keyhole, and sawtooth for picture and mirror hanging solutions. Made of steel material for durability. Installs easily with a Philips screwdriver. For interior applications. Safe working load of 30 lbs in drywall, 100 lbs in stud. No pilot holes required because of self-drilling tips.