Description: High quality 316 grade stainless steel Mirror-polishing Heavy-duty construction, strong and does not rust Corrosion resistance and durability in the saltwater environment Great accessories for boat/marine/yacht/kayak Specification: Width: Approx. 156mm / 6" Bolt Diameter: Approx. 8mm / 5/16" Package Includes: 1 Piece Boat Hatch Lift Handle Note: 1. Please check as much as possible to make sure the item is the one that you need. 2. Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm)