Toggler alligator, 100 pack, 5/16" diameter af8 flanged solid wall anchors, versatile & easy to install, works on any building material & many different sizes & types of screws can be used with the same diameter anchor, replaces plastic plugs & screw anchors as well as metal masonry screws & wedge anchors, out holds metal anchors of comparable size for a fraction of the cost, special corrosion proof polymer absorbs shock & vibration.