The Apple Pro Display XDR VESA Mount Adapter allows you to mount the Apple Pro Display XDR to a wall mount that supports a 100 x 100mm VESA pattern, like the Gabor FSM-S Full-Swing Small Wall Mount for 20 to 45" Flat-Panel DisplaysGabor FSM-S Full-Swing Small Wall Mount for 20 to 45" Flat-Panel Displays (BH #GAFSMS).

Vesa 100mm x 100mm mounts will include the M4 screws needed to work with this adapter

It does but it’s not needed. Magnetically attaches to the XDR display in a no-brainer fashion. It does not come with screws, supposed to use the VESA arm’s screws. I have two XDRs hooked up to two different brand 100x100 VESA arm mounting plates that attach to this adapter. One set of screws fit the other set didn’t. Had to go to Lowe’s to pick up a set of M4-0.7-10 metric screws with matching washers. The depth of the XDR adapter’s socket is only 8mm. SAE screws won’t work and you want this thing to be rock-solid given the cost of these displays. The build quality of both the adapters and the displays is fantastic. I have a stand on order as well so I could use it on site if I have to.