Marine Grade Boat Hinge: SUS316 material and polished surface could not only corrosion resistance on your marine trip but also keep long time for flexibly closing and opening. These are made by high quality marine stainless steel material to make sure stable connection and longer using life. These boat hinges are built to last and will stand up to the elements. Heavy Duty Boat Hinge: The gleaming mirror polished hinges would be more suitable on marine usages as boat hinges. You can install it on everywhere because of its corrosion resistance and abrasion resistance,it could provide convenience and reliability for your daily using. Multi polishing procedures could not only make surface flat and smooth but also provide exquisite appearance. 316 Stainless Steel Hinges: Considering for make better using experience for everyone,we use 316 stainless steel to produce it.SUS316 would do better on your daily using,compared with SUS304,it hss superior corrosion resistance, smoothness of the surface,longer life and durability, can be used under hot and humid environment.Therefore,these hinges would especially perform well on marine usages. Five Holes Hinge Install With Screws: It’s easy to install these on flat.Five holes on hinge could make it more stable connection and provide smooth and steady using experience.There are 10 screws on the package,you can use it to install this hinge on your purpose sites. These hinges fit flush in your boat and folding so that your hatch can lay flat in the open position. These are ideal for flats and fishing boats. Multi Usages: You can freely install these on somewhere suitable,boat, cabinet,yacht,garage,deck,door,tool box, locker as long as there need the hinge. These are made by precision casting, which ensures the door can be properly shut. It could directly replace your worn or broken door hinge.