J BOLT HINGE: 5/8" x 6" long screw-in lag bolt hinge for chain link fence ~ easy install, Heavy Duty screw hook and eye male hinge ~ Gate post side hinge bolt ~ Pin Hinge Lag-bolt. Chain Link Fence LAG SCREW HINGE ~ LAG BOLT HINGE Galvanized Steel 5/8" pin 6" long Heavy Duty, Easy Installation, Use in wood fence posts round or square... even railroad ties or barn etc.