Sea-Dog Stainless Steel Hatch Spring - SmallThis Sea-Dog corrosion-resistant formed 304 stainless steel hatch spring has an internal wire that prevents the spring from being overextended during normal use. This spring is not recommended for applications where the hatch will scoop wind while boat is underway and overextend spring. Formed 304 stainless steel; Features internal wire; Installs with (4) #10 RH fasteners or 3/16" pop rivets (not included); Dimensions: A: 8-5/8"; B: 1-1/16"; C: 3/4";