GRK Caliburn XL Screws
You could say that the GRK Caliburn XL is an anchoring system in itself. Once a hole is pre-drilled, simply drive the professionally engineered fastener into the concrete (or similar application). There is no need for plugs or other anchoring assistance. The Caliburn XL features a patented thread design for ease of driving the screw.
The Caliburn XL also boasts some impressive shear and pull-out testing data (ICC report ESR-3251). So, whether you're mounting a flat screen TV or anchoring a sill plate, utilizing the Caliburn and its simple installation process (pre-drill, clean out debris, insert Caliburn) will secure your project with ease.
The Caliburn XL is also Climatek-coated for high corrosion resistance. GRK is always testing and perfecting the Caliburn as regulations and designs constantly change within the industry standard.
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Click here for test data on the Caliburn XL.