Made to withstand the elements, this double-headed Bear Claw Hanger installs with a Phillips screwdriver into wood, lath and plaster or drywall, and will bore into concrete or brick with a 1/8" pilot hole. The exposed collar is ideal for keyholes, sawtooths and wire, will work with D-rings. Holds up to 30lbs in drywall, and 100lbs when installed into a wood stud. Will not rust, erode or corrode. 4 pk