Screw Pin Anchor Shackles come in two types: Galvanized Steel and Stainless Steel. Galvanized steel is less expensive but can only be used around freshwater and it's lifespan is lower than stainless. Stainless steel is necessary around salt water because it's better suited to withstand corrosion. Stainless steel can be used around any body of water and has a longer lifespan than galvanized steel. Anchor shackles come in different designs, but HarborWare carries the bow-shaped variety.
