These hooks are Made up of Stamped 304 grade stainless steel. Corrosion resistant, perfect for sailing, boating, and many other marines and rough weather applications. Heavy-duty build provides long-lasting durability and resistance against rust in saltwater environments. Easy to Use: Ideal for hammocks,ships and a wide variety of uses. Package Dimensions: Length: 1-1/8 inch/ 29 mm, Width: 11/16 inch /18 mm, Thickness: 1/16 inch/ 1 mm. Package includes: Pack of 4 Marine City 304 Grade Stainless steel Utility Hooks. (screws are not included) The hooks are Made of Stamped 304 -grade stainless steel. Corrosion resistant, perfect for sailing, boating, and many other marines and rough weather applications.Ideal for hammocks and a wide variety of uses. Length: 1-1/8 inch/ 29 mm, Width: 11/16 inch /18 mm, Thickness: 1/16 inch/ 1 mm. This item includes 4 hooks, we don't supply with screws.