A Gemlux 304 Grade Stainless Steel Top Mount Friction Hinge is a type of hinge used in the marine industry, particularly for boat hatches and doors. The hinge is made of 304 grade stainless steel, which is a high-quality, corrosion-resistant material that is commonly used in marine environments. The top mount design means that the hinge is installed on the top surface of the hatch or door, rather than being mounted within the surface.

The friction hinge mechanism is designed to provide resistance against the movement of the hatch or door, so that it remains in position when opened or closed, without the need for additional latches or catches. This type of hinge is commonly used on hatches and doors that need to remain open, such as engine room hatches, so that they do not close unexpectedly.

Gemlux is a brand known for producing high-quality marine hardware and accessories, and their 304 Grade Stainless Steel Top Mount Friction Hinge is a durable and reliable option for boat owners and builders. The hinge is designed to withstand the harsh marine environment, and is also suitable for use in other outdoor applications where corrosion resistance and durability are important.