Concrete Screws or "Tapcons" are great for screwing into concrete. Included masonry drill bit is 3/16" size. Used to anchor signs, fixtures to concrete and block buildings.

• 1000 Hour Salt Spray Test Coating
• 3/16 Concrete Screw Drill bit included in box
• These are commonly known as Tapcons
• Phillips Flat Head
• Cuts its own threads in concrete

1000 Hour Salt Spray Test CoatingChenango Supply