Attwood 9955-1 Solid Shank Attwood 9955-1 Solid Shank Features: Penetrating fluke anchors dig into mud, sand, or gravel, and stow flat Pivoting flukes rotate downward into bottom Excellent weight-to-holding-power ratio, compared to cast anchors All Attwood penetrating anchors are manufactured of hot dip galvanized steel for corrosion resistance and strength The assembly is arc-welded steel that maintains consistent fluke-to-shank angles, ensuring quick penetration and a firm hold These anchors have a solid shank for durability and strength