Review on DAFUNY Replacement Screws 10 Sets for MacBook Pro Cover - Compatible with Apple MacBook Pro 13 inch, 15 inch, and 17 inch (A1278 A1286 A1297) - 2009 to 2012 Version - Mac Notebook Laptop PC by King Reeves

If you're buying this because you're renovating a Macbook you might be disappointed with the "Lock Tite" used (although you might as well blame threads on that piece of equipment you're working on), but for someone like me who only needed two bolts and only bought extra ones for insurance, I really don't care if I have to tighten them a couple of times and once in one blue moon another substitute.