A:AnswerI have the LG 65'' OLED TV which is much lighter than your TV and I use a much heavier-duty mount made by Samsung (about $300) to hang the TV on the wall.
A:AnswerOn LG TV, I think the thread for mounting sockets on the back of the TV is metric. On my LG OLED TV, the bolts are 14mm. Be careful with the length of the bolts. Too long ones might jab into the internal electronics components. Hope that help!
A:AnswerDiagrams in the installation booklet show what parts would be required for a flat or curved rear panel of your TV. I tried the various lengths of bolts first to get the right fit then used the spacers to make it tight. Mix and match the spacers to make it fit your TV. Solid tight is the name of the game.