ARB adjustable hinge with a zinc finish for 18 to 24 inch door sections. The zinc coating gives it better corrosion resistance than bare steel, which helps if the garage gets damp or is not climate controlled. Adjustable slot lets you dial in the section spacing. Hardware included: four 5/16"-18 bolt nuts, clevis pin, and cotter ring. Good option for replacements or rebuilds where you need some play in the hinge position. Confirm section height matches before ordering.