Which screw is used on the back of the Minx Min22? April 01, 2024 09:57 The screw on the back of the Minx Min22 speakers is a M6 x 14 countersunk screw. Related articles What’s Included in the Box? How do I install the Minx MIN22? What is a crossover? How do I install the Minx MIN12? Aeromax 2 - Installation Guide