Measuring 3 " long and 1 " wide, these rust resistant door mounting brackets include reinforced screw holes and pre drilled alignment guides for simplified, tool friendly assembly Engineered with accuracy milled surfaces and uniform thickness, these door track brackets maintain consistent weight distribution while door sagging over time Ideal for homeowners and professional contractors seeking stable sliding door hangers that withstand frequent use in residential or commercial settings Perfect for upgrading interior pocket doors, closet systems, and space saving room dividers where smooth operate and structural integrity are vital This 4 piece sliding door hardware set features heavy duty iron construction, offering outstanding durability and compatibility with 1 / 4 " to 3 / 8 " nut for secure pocket door installations, Manufacturer: Kaeltsyn