Toggler Alligator, 20 Pack, 5/16" Diameter, AF8 Flanged Solid Wall Anchors With 20 #12 x 1 3/4" Screws, Versatile & Easy To Install, Works In 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. Furthermore, Special Corrosion Proof Polymer Absorbs Shock & Vibration.