3M Washer M3x9 OD is part of a tool used in the application of 3M Paint Replacement film.3M Blackout Film offers multiple benefits for automotive manufacturers. 3M’s engineered solutions provide project planning, training and documentation, prototype and pilot production assistance, and ongoing, responsive manufacturing support.Our proven materials contribute to design effectiveness and reinforce the branding message while simplifying manufacturing. The films are available in textured, low gloss or high gloss finishes to match the design intent of the vehicle. Film use eliminates the paint process and cumbersome masking and de-masking, helping to reduce reject levels.