- Notes, cautions, and warnings
- Working on your computer
- Technology and components
- Removing and installing components
- Recommended tools
- Screw list
- Secure Digital Card
- Optical drive
- Base cover
- Battery
- Memory modules
- WLAN card
- Solid-state drive/Intel Optane
- Coin-cell battery
- Hard drive assembly
- Hard drive
- System fan
- Heat sink
- VGA cable
- Speakers
- IO board
- Touchpad
- Display assembly
- Power-button board
- Power button
- System board
- Power button assembly with fingerprint reader
- Power-adapter port
- Display bezel
- Camera
- Display panel
- Display hinges
- Display cable
- Display back-cover and antenna assembly
- Palm-rest and keyboard assembly
- Troubleshooting
- Getting help
Vostro 3581 Service Manual
Screw list
The following table provides the list of screws that are used for securing different components.
| Component | Screw type | Quantity | Screw image |
|---|---|---|---|
| Base cover | M2.5x6 | 6 |  NOTE: : Screw color may vary depending on the configuration ordered. |
| Battery | M2x3 | 4 |  |
| Display panel | M2x2 | 4 |  |
| System Fan | M2x5 | 3 |  |
| Hard-drive assembly | M2x3 | 4 | |
| Hard-drive bracket | M3x3 | 4 |  |
| Heat sink | M2x3 | 3 | |
| Hinges | M2.5x2.5 | 10 |  |
| I/O board | M2x4 | 2 |  |
| Optical-drive bracket | M2x3 | 2 | |
| Optical-drive connector board | M2x2 Big Head | 1 |  |
| Power-adapter port | M2x2 | 1 |  |
| Power-button board | M2x3 | 1 | |
| Power button with fingerprint reader (optional) | M2x2 | 1 | |
| Solid-state drive | M2x2 | 1 | |
| Solid-state drive | M2x3 | 1 | |
| System board | M2x4 | 1 |  |
| Touchpad | M2x2 | 6 | |
| Wireless-card bracket | M2x3 | 1 | |
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