ALEKO LM115 3/4" Heavy-Duty Hinge J-Bolt for Driveway Gates Hinge pivots on a steel ball bearing and includes a grease fitting to keep the bearing lubricated Ball bearing, adjustable Hinge has a welded plate with 2 holes to attach with screws or bolt to an existing structure Comes with 2 bolts, 2 nuts and 2 washer Powder coated.