Surprise! iFixit says you can't do much to fix or upgrade the 2015 MacBook | Ars Technica
Using NVMe SSD drives in the 2013 / 2014 / 2015 MacBook Pro and Air - BarTechTV
MacBook Pro 15" Retina Screw Set, Mid 2012
3 In 1 Pentalobe Torx T5 T8 Screwdriver Tool Teardown Hinge Ssd Screws For Macbook Pro Retina 15" A1398 Mid 2012 2013 2014 2015 - Screwdriver - AliExpress
100Sets/Lot NEW Laptop A1398 A1425 A1502 Screws Bottom Case Cover Screw Set for Macbook Pro Retina 13" 15" 2012 2015 Year|Laptop Repair Components| - AliExpress
Amazon.com: 2 Sets Replacement Screws with Screwdriver for MacBook Pro 13 or 15 inch Retina Display A1398 A1425 A1502 2012-2015, Bottom Case Cover P5 Pentalobe Repair Tool Kit Laptop PC Computer : Electronics
Macbook Pro Retina Base Bottom Case Screws Set Mid-2015 15 MacBookPro11,5 8944831438224 | eBay
MacBook Pro Retina (2012-2015) Lower Case Screw Set
P5 BOTTOM CASE SCREWS + SCREWDRIVER MacBook Pro Retina 13" A1425,A1502,15" A1398 | eBay