Caliburn XL 19/64" Concrete Screw Lag
GRK Caliburn XL 19/64" Concrete Screws are a great option for attaching metal posts to concrete patios and steps. Caliburn XL Screws are designed to grab onto concrete when installed properly and will generate a large amount of resistance needed to install metal posts. Caliburn XL screws are available in three lengths, 5", 3-1/2", and 2-3/4"
Screws sold individually
Torx T-40 bit required to install. The screw hole must be pre-drilled with a masonry bit prior screw installation.