Seadog Mooring Snap Hook 3-15/16" Steel 155841-1 by Seadog $5.33 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Seadog Mooring Snap Hook #354-1558411 Size: 3-15/16" x 9/16". Cast Steel Nickel Plated Steel.