Seadog Swivel Eye Bolt Snap 3-5/16" Brass 139016-1 by Seadog $4.82 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Seadog Swivel Eye Bolt Snap #354-1390161 Size: 3-5/16" x 5/8" Eye. Sand Cast Brass.