ALUMINUM 1/2 LARGE GARDEN GATE HINGE J-BOLT SMALL DRIVEWAY GATE WOOD ADJUSTABLE The J-Bolt is made of Galvanized Steel for strength and the female part (cup) is Aluminum with Grease fitting and additional plate has been welded to allow for easy installation on any surface. 2 Pieces – Includes. 2 1/2″ J Bolts 5″ Long – Galvanized Steel. 2 Female socket with grease fitting – Aluminum. 4 1/2 Hex Nuts. 5 No More Rust. Color: Raw, Mill finish, unpainted. Hinge pivots on a steel ball bearing and includes a grease fitting to keep the bearing lubricated. Hinge has a welded plate with 2 holes to attach with screws or bolt to an existing structure. Comes with 2 bolts, 2 nuts. Transit time includes normal weekdays.