The Dell Inspiron 16 7640 uses three metric screw sizes. All stocked below.
Every Screw Size in the Inspiron 16 7640
| Size | Commonly Used For | Buy Single | Bulk |
|---|---|---|---|
| M2 x 3mm | Motherboard and M.2 SSD mounting | Buy 1 | 100-pack |
| M2 x 4mm | Battery and heatsink mounting | Buy 1 | 100-pack |
| M1.6 x 3mm | Fine internal hardware | Buy 1 | — |
Repair Notes
The M1.6 fine screws strip easily — use a fresh PH00 bit and light torque. Identify unknown screws with the Screw Size Finder Tool. Browse all model guides.
Get the complete kit: keep spares on hand with the Dell Business Laptop Screw Kit: 15 screws in the three core sizes shared by Inspiron, Latitude and Precision models (6× M2 x 3mm, 5× M2 x 4mm and 4× M2.5 x 5mm).