Simpson Strong-Tie® Screw anchor, series: Titen®, Phillips®/Flat Head Drive, Minimum Embedment Depth, Applicable Materials: Concrete and Masonry. Titen® Screws are Hardened Screws For Attaching All Types of Components to Concrete and Masonry. These Fasteners are Commonly Used in Applications Such as Attaching Electrical Boxes, Light Fixtures or Window Frames Into Concrete or Masonry Base Materials.