help with identifying door hardware

Thanks for reaching out to us! Have a look at the roller assemblies we've related for you on this page. These all have a housing thickness of 11/16" (close to 5/8" thick) and a height of 1-1/16". They all have a 13/16" flare" at the sides on the bottom. Some of the differences are the wheels are different diameters and the nylon 1-1/2" wheels on the 81-175. The mounting tabs are also a little different, but hopefully the will line up with your patio door to secure them in place. Though I can't make any promises, review the specifications for these parts along with the related vides to see what you think.