Hi Peter, Thank you for taking the time to send me the exact specifications! I went down to my local hardware store and they had the appropriate bolts. My Beo Vox MS 150's are now up on their stands and the sound is much improved. Thanks again and best regards, John

Thank you very much Chris. I will measure the depth and give it a try! John

In a recent move, the Allen Bolts that secure my speaker stands to the speakers were lost by the movers. Does anyone know how I could replace these Allen Bolts or find out the specifications for the Allen Bolts. Thanks, John