A:Answer The recommended screw size is on page 6 of the TV's manual. For 55" and 65" models, you need an M6 machine screw. For 75" models, you need an M8. The screw length is 9.5-11.5mm but be aware that 2 of the mounting holes are inset on the back of the TV, so you will need a longer screw for those 2 holes.