Which screw is used on the back of the Minx Min12? April 01, 2024 09:30 The screw on the back of the Minx Min12 speakers is a M6 x 14 countersunk screw. Related articles How can I remove and rotate the grille of my MINX speaker? What are the suggested setups for Minx MIN12? What’s Included in the Box? What is meant by speaker sensitivity? What is a crossover?