SCRW/ANCHR NYLN RND 12PK *Brand Name: HILLMAN *Diameter: 5/16 in. *Length: 1.625 in. *Material: Nylon *Head Style: Round Head *Product Type: Screw and Anchor *Number in Package: 12 pk *Screw Included: Yes *Packaging Type: Clamshell *Required Drill Hole Size: 0.31 in. *Capacity: 45 lb *Application: Brick, Concrete, Hollow Block, Drywall, Plaster