J-BOLT HINGE: 5/8" x 8" long threaded bolt hinge to chain link fences + ~ Easy install, Heavy Duty J-hook Male Gate Hinge ~ Pin Hinge J-bolt ~ wooden + metal post, round + square post! Nuts provided. Chain Link Fence J-BOLT HINGE Qty 1 Galvanized Steel 5/8" pin 8" long, and Adjustable, Threaded Heavy Duty, Easy Installation, Use in wood fence posts round or square... even in some sturdy structures.