3.5" Bottom Screw Hole Depth
SAS and SATA 3.5" drives made after 2018 have a shallow bottom hole screw depth.
This allows the drive to have more platters inside.
There is no change to the side hole depth.
 |
Critical: Screws that are too long can damage the drive. |
- Side Mount
- max of 3mm of the total screw length inside.
- min of 3 threads engaged.
- Bottom Mount
- max of 2.5mm of the total screw length inside.
- min of 2.5 threads engaged.
2.5-inch Drive Screw and Torque Information
The drive should be mounted to the chassis using screws.
- Size: M3
- Qty: 4
- Min Torque: 5 in-lb
- Max Torque: 6 in-lb
3.5-inch Drive Screw and Torque Information
The drive should be mounted to the chassis using screws.
- Size: 6-32
- Qty: 4
- Min Torque: 5 in-lb
- Max Torque: 10 in-lb
Need more help?
Western Digital: 3.5-inch Form Factor Mounting Screw Locations and Depths.pdf
