Zinc Mooring Chain (ZMP-2) Anode Thickness 1-3/8" - Width 2-5/8" - Length" 6" - Weight: 4.40lb 1: For use on grade FM3 stud link chain 2: Exterior edges and corner radii of cast anode shall be 0.06 to 0.19. 3: Pipe core shall be 9/16" tubing X 0.083 wall conforming to ASTM A 513 type S or 3/8"standard size pipe conforming to ASTM A 513