No Other Anchor Compares to Fortress Anchors, the Best Value in Anchoring Safety and Convenience Fortress Anchors are constructed from a high-tensile, corrosion-resistant, aluminum alloy that is precision-machined into interlocking components with no welds that weaken the metal structure. This results in a lighter, easy to handle anchor providing superior holding power. Since 1986, the much lighter Fortress have consistently out-performed heavier steel anchors in holding power tests conducted around the world. In the US Navy tests, not only did Fortress Anchors out-perform heavier steel anchors, they were also able to withstand pull loads that averaged over 200x their own weight...and without incurring serious damage, which was noted in the test report summary: "The fact that Fortress Anchors incurred no significant structural damage at such high holding ratios suggests that the anchors have been extensively engineered from both the hydrodynamic and structural standpoints." Fortress Anchors are proudly manufactured in our facility in Fort Lauderdale, Florida, making them the only American-Made Anchor on the market. In addition to Fortress, we also manufacture the Guardian line, which is a high-quality economy alternative to the Fortress. We have a world-wide distributor network that is growing every year and we were named Runners-Up for the 2023 South Florida Manufacturing Association's Manufacturer of the Year in the 1 to 30 Employee Category.