The Chief PAC-115 Steel Stud/Drywall Anchor Kit lets you mount Chief fixed and tilt wall mounts anywhere on drywall (0.5" thick or greater) and on steel studs.Features: The kit allows you to install large flat panel TVs to metal studs The weight capacity is dependent on which mount is used Kits include 1/4-20 screws, 1/4 washers and heavy-duty toggler anchors PAC115 includes 4 anchors, PAC116 contains 8 anchors and PAC117 contains 28 anchors Drywall must be at least 0.5" (13 mm) thick