MacBook Pro 13" Unibody Early 2011
Macbook Pro 13" and 15" Unibody (Mid 2009 through Mid 2012) Lower Case Screw Set
This set contains just the screws for the lower case.
MacBook Pro 13" Unibody (Early 2011/Late 2011/Mid 2012) Screw Set
The set includes all the screws except those from the hard drive bracket, display assembly, and trackpad.
MacBook Pro Unibody (Mid 2009 through Mid 2012) Trackpad Mounting Screws
Replacement screws and springs for mounting the trackpad in the upper case assembly of mid 2009 through mid 2012, 13" and 15" MacBook Pro Unibody laptops.
In February 2011, Apple refreshed the 13" MacBook Pro line by changing to the Intel HD Graphics 3000, increasing VRAM to 384 MB, and upgrading to Core i5 and Core i7 processors with PC3-10600 RAM. The Mini DisplayPort was also replaced (but still backwards compatible) with the new Thunderbolt standard allowing 10 Gbps transfer speeds in both directions.
The most common repairs with the MacBook Pro 13" Unibody for Early 2011 are replacing a dead battery or upgrading the hard drive or RAM. The MacBook Pro 13" Unibody Early 2011 Memory Maxxer RAM Upgrade Kit includes all the parts and tools you need to upgrade to 16 GB of RAM.
Once you've bought your parts and tools, check out iFixit's MacBook Pro 13" Unibody for Early 2011 repair guides for step-by-step instructions on how to make the fix.