Danforth Hi-Tensile Anchor The Danforth hi-Tensile is Tie Downs toughest, most durable anchor. Features very high holding power. The flukes are fabricated for additional strength and then beveled to allow quick deep bottom penetration. Each shank is made from 4130 steel and then heat treated for extra strength with hot dipped galvanized finish. Part Holding Power Anchor Weight Chain LengthDia. Anchor Height Anchor Width Fluke Height 94020 1,800 12 6-38 28-14 21-12 13-12 94021 2,500 20 7-716 35 2