This screw is only fit for some models of Dell XPS bottom base cover,or lower case cover.Please read the title and description senction.This screw is NOT BIG HEAD SCREW.It's not fit for HDD/SDD/HINGE/others part which uses the BIG HEAD M2X3 screw to lock. Perfectly match with the factory look and size.The blue coating on the screw prevent them from loosening and backing out.Just like the OEM screws It requires 8pcs(XPS 13) or 10pcs (XPS 15)M2x3 T5 screws to secure the bottom base cover with palmrest In this kit,there is a bonus tool,a Torx T5 screwdriver It also fit for all laptops which is secured by M2X3 T5 screws. Easily handle the tiny screws with the magnetic tip on the T5 Torx screwdriver

Kit Highlight
Screws are made of steel 410 that is more harder than the OEM Aluminium screws.Avoid to get screws stripped
The screwdriver tip is a magnetic design which allow the users easliy handle the tiny screws
We provide 3 color variations for your choice.Please determine the match color screws with your case.

Compatibility
It fit for computer and laptop which use M2 X3 Torx T5 screws locking the parts.
The partial list of machines as below.
For Dell XPS 13 7390 9343 9350 9360 9370 9380
For Dell XPS 15 7590 9510 9530 9550 9560 9570 9575(2-in1)
For Dell Precision M3800
For Dell Precision M5510
For Dell Precision M5520 
For Dell Precision M5530 
For Dell Precision 5530 2-in-1
For Dell Precision M5540 
For Dell Precision M5550

For Razer Blade
For HP Envy 13
For Lenovo YOGA 900
For lenovo yoga 3 pro 1370
For Beats Studio 3

Important Reminder
NOT Compatible with XPS 17 9700 9710 which use T5 M2.5X4 screws
NOT Compatible with XPS 13 7390 2-in-1 which use T5 M2.5X4 screws