These Stud Mounted Handrails are designed to provide a sleek, smooth handrail transition to the mounting surface of your boat. Functional and attractive, with no visible mounting hardware. Features integral 5/16 -18 x 1-15/16 threaded studs. Constructed of corrosion resistant formed 304 stainless steel also available in black matte finish. Installs with two 5/16 -18 nuts (included).