1/4" Phillips Flat Head Concrete Crete Flex Screw 410 Stainless Steel.

• 410 Stainless Steel
• Heavy-Duty, V-Notched Thread with Larger Crosssectional Area (25% Greater Than Other Commonly-Used Masonry Fasteners)
• #3 Phillips Flat Head Drive.
• Nail Point
• Dual Heat Treat Process
• Silver Stalgard® Corrosion-Resistant Finish
• Installed with a Commercial-Grade Hammer Drill or Rotary Hammer, a Specially-Sized Crete-Flex Carbide-Tipped Drill Bit, and a 1000 or Crete-Flex Installation Tool.
• Stainless Steel Crete Flex Tapcon Screws, Stainless Steel Concrete Screws, Stainless Steel Masonry Screws

WARNING: This product can expose you to chemicals such as nickel, lead or chromium, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov