Features: SureClose Adjustable Gate Hinges Flush mount Non self-closing Non-safety Gate Applications: Front Gate, Side Gate, Pedestrian Gate, Driveway Gate - Double, Driveway Gate - Single, Pet Gate, Playground Gate, Public/Commercial Gate, Security Gate, Privacy Gate Internally Mounted, Hydraulic, Gate Hinge-Closer Powerful, hidden hydraulics Maintenance free, with high corrosion resistance Multiple adjustment options (force, speed) Prevents gate-slam noise and gate damage 50-micron anodizing (aluminum components) Screw-on or weld-on models available Weld-on models – no need to grind before welding Designed for large industrial-style gates, such as found on commercial and heavy residential gates, plus estate gates and gates around factories, schools, access control areas and driveways that don’t require self-closure This model features extra-large hinge pins and dual thrust bearings designed for high loads. Gap variance ½” (13mm) Gate mounting brackets included Post mounting brackets sold separately - Click here SM Model Save money when SM is used as the bottom, load-bearing hinge along with a SureClose® 57 or SureClose® 108 closer Two of these hinges self-closes gates up to 1,500 lb (680kg) (see chart below) Important: Order 2 hinges per gate Installation Guide Specifications: Finish: Black Anodized Gate Type: Non self-closing, Non-safety Gate Material: Aluminum, Steel/Ornamental Iron Approximate Gate Size: 4ft W x 6ft H (1.2m x 1.8m) Gate Frame/Post Shape: Square-to-Square Minimum Post Size: 2" Ideal Gate Gap: 1/2"