Simpson Strong-Tie THDB25412CS - 1/4 Inch x 4-1/2 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
No special drill bit required — designed to install using standard-sized ANSI tolerance drill bits. Removable — ideal for temporary anchoring or applications where fixtures may need to be moved
T30 6-lobe drive reduces driver-bit cam-outs, resulting in easier installation. Countersunk head allows for flush-mount applications that are not possible with a hex head
Serrated teeth on the tip of the Titen HD screw anchor facilitate cutting and reduce installation torque. Zinc plated; not recommended for permanent exterior use or highly corrosive environments