HP 1859M User Manual page 14

Setting Up the Monitor
Four threaded holes are exposed. These holes are for screws to attach the swing arm or other mounting fixture to
the back of the monitor.
Threaded holes for attaching wall mount
6. Follow the instructions included with the mounting fixture to ensure that the monitor is safely attached.
The four threaded holes that are on the back of the panel are compliant with the VESA standard for mounting
flat-panel monitors.
7. Attach a swing arm or other mounting fixture.
3–4 Features may vary by model. User's Guide