A full threaded hook that may be adjusted to the correct gate sag, this National Hardware zinc plated bolt hook bolts firmly through the post and secures in place with the included nuts and washers. Protected by WeatherGuard technology to resist corrosion. Bolt Diameter = Safe Working Load (SWL)1/2" = 100 lb5/8" = 150 lb3/4" = 200 lb7/8" = 240 lb | HILLMAN 293BC Bolt Hook | Size 3/4" x 12"