【Perfect Fit For Mac Air】DAFUNY Unibody MacBook Air Screws are all produced by Foxconn supplier and perfect fit for Apple Macbook Air 13 inches A1369 A1466 bottom cover case ( 2010 - 2017 Version Mac Notebook Laptop PC Computer , but only for Mac Book Air Display ). 【100% New Mac Screw】100% Brand new repair replacement screw with blue glue on it. If no glue on the screws, they are easier to strip in general. 【Tough Stainless Steel】DAFUNY MacBook Air Screws are made by high grade stainless steels and stainless steels are notable for their corrosion resistance.