Wej-IT 5/16 x 1-1/2" Wej-IT Hex Nut Sleeve Anchor (100 Per Box)For a wide variety of masonry applications Key Features and Benefits : Fully assembled and ready to use Speeds installation & Eliminates the problem of missing components Suitable for a wide variety of applications Available with acorn or hex nut, or flat head, or with rod coupling Specifications _ _ Anchor Size (in.) 5 16 x 1 1 2" Head Style Hex Nut Drill Bit Size (in.) 1 1 4 Min. Embed. (in.) 1 1 4 Box Qty. 100