Skid Clamp Anchors for Hollow Walls Model HDW-ANC-TOG-6These high-tech plastic anchors hold securely in 1/2" and 5/8" drywall. Easy to install, they make a satisfying 'pop' sound when they're fully engaged. The small diameter head sits flush with the wall surface and is completely concealed by the Skid Clamp base, making for a super clean installation. Recommended for use with STC5565 Skid Clamp Assemblies Includes: 4 Self-drilling Hollow Wall Anchors 4 6 x 1-1/4 Truss Head Sheet Metal Screws