Brand Name: HILLMAN *Diameter: 1/4 in. *Head Style: Round Head *Product Type: Concrete Screw Anchor *Length: 1-1/2 in. *Number in Package: 100 pk *Material: Lead *Screw Included: No *Screw Length: 1-1/2 in. *Packaging Type: Boxed *Capacity: 15 lb. *Required Drill Hole Size: 1/4 in. *Minimum Embedment: 1-1/2 in. *Thread Type: High/Low *Application: Brick, Concrete, Hollow Block *Dimeter: 1/4 in.