BestPro J-Bolt Fence Post Hinge installs easily: drill a hole and slide J-bolt post hinge through the hole with one nut on hinge side then install second nut. J-Bolt post hinges are easily adjusted even after the gate is installed by loosening the nuts and turning nuts in or out for proper gate alignment. 6″ gate hinge is made of galvanized steel to prevent rust. Gate post hinge is designed for years of smooth gate operation. Nuts for gate hinge are included (quantity 2).