Apple MSPA1013 4mm 1pc(s)

Casing Screw - 4mm, Used This is a used part from a recycled computer. In the case of a functional part, it has been fully tested prior to putting in stock and is guaranteed to be fully functional.

This is the bottom case screw that attaches the bottom case to the main casing unit on the later versions of MacBook Pro Unibody machines. It is one of screws that screw around the edges of the bottom case.