13/16" x 21" Simpson SDS-MAX Quad Head Concrete Drill Bit, Carbide Tip, Pkg 1 Decorative Gable Plates It is available in smooth

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

Deck-to-house attachment reinforcement

Its flexible design and precision-engineered construction make it ideal for a variety of roofing projects

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

13/16" x 21" Simpson SDS-MAX Quad Head Concrete Drill Bit, Carbide Tip, Pkg 1 Decorative Gable Plates It is available in smoothStrong 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