Seller: zaydertader (4,189) 99.4%, Location: ., Ships to: US, Item: 221812732794 Condition: Good condition. May need fresh oil but they open and close freely., Material: Steel, Details: For sale is a set of 3 vintage heavy steel ball bearing industrial door hinges. They are marked with a McK which I believe stands for McKinney. They are in good but used condition. They open and close freely, some surface wear and wear may be found. Measurements- 4-1/2" X 4-1/2" Sold as is please review all pictures.Thanks for looking, follow the links below to see more great vtg hardware in my store. Check out my other items!