13/16" x 21" Simpson SDS-MAX Quad Head Concrete Drill Bit, Carbide Tip, Pkg 1 Decorative Gable Plates The screw’s patented tip drives

The screw’s patented tip drives fast and clean into wood with no pre-drilling

This product is intended for use with 6x6 lumber but is also available in other sizes

After the anchor reaches the bottom of the drilled hole

DWFSD Drywall-to-CFS Screws

It is available in smooth and knurled versions for attaching building materials to concrete and steel

13/16" x 21" Simpson SDS-MAX Quad Head Concrete Drill Bit, Carbide Tip, Pkg 1 Decorative Gable Plates The screw’s patented tip drivesStrong Tie SDS MAX masonry drill bits feature a durable carbide tip and are designed for use in concrete, brick and block applications. California Residents: WARNING