CNCRT SCRW ANCHR FLT18PK *Brand Name: HILLMAN *Diameter: 1/4 in. *Length: 1-3/4 in. *Material: Carbon Steel *Head Style: Flat Head *Product Type: Concrete Screw Anchor *Number in Package: 18 pc *Packaging Type: Clamshell *Thread Type: High/Low *Application: Brick, Concrete, Hollow Block