Dura-close JEDC-AH1 Gate Hinges (Black) pair The most durable, heavy-duty, multi-adjustable, self-closing Gate Hinges is an injection molded Hinge made from especially prepared glass-fibre reinforced polymer material. All metallic parts are of stainless steel. A unique spring tension mechanism. Hinges manufactured are available in Black and White. Most suitable for Vinyl, Wood and Metal fence-gates.