Seadog Spring Hook 4-1/16" Steel 155630-1 by Seadog $4.10 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Seadog Spring Hook #354-1556301 Mild Steel Electrogalvanized. Size: 1/2" x 4-1/16" 7/8" throat opening. Break strength: 1,200lbs