HAM DRIVE ANC 1/4X1 *Brand Name: HILLMAN *Diameter: 1/4 in. *Length: 1 in. *Material: Steel *Head Style: Mushroom Head *Product Type: Hammer Drive Anchor *Number in Package: 100 pk *Screw Included: Yes *Packaging Type: Boxed *Thread Type: High/Low *Required Drill Hole Size: 1/4 in. *Screw Length: 1 in. *Minimum Embedment: 3/4 in. *Capacity: 145 lb *Application: Brick, Concrete, Hollow Block