My M2V3s do & they came with the bolt screwed in as well. I imagine that the V4s would be the same. I successfully used it with Axiom's 'Full Metal Bracket' until I went with the FMS Stands.
My new M22V4s also have 2 mounting bolts on the back at the bottom corners that provide better securing to the platform of the FMS Stands. This is a change from the V3s that had the bolts screwed into the stand platform & once tightened, held the speaker by pressure/friction. The V4 system is much more secure, at least with the FMS Stands...
TAM
