Simpson Strong-Tie THD37400CS - 3/8 Inch x 4 Inch Countersunk Head, Zinc Plated Titen HD Heavy Duty Screw Anchor for Concrete, Easy Installation (Pack of 50)
Qualified for static and seismic loading conditions; standard fractional sizes, hole size same as anchor size
Countersunk head allows for flush-mount applications that are not possible with a hex head
No special drill bit required, Designed to install using standard-sized ANSI tolerance drill bits; 6-lobe drive reduces driver-bit cam-out, resulting in easier installation
Removable, ideal for Temporary anchoring or applications where fixtures may need to be moved
Serrated teeth on the tip of the titan HD screw anchor facilitate cutting and reduce installation torque