A few weeks ago I decided we were going to mount our 55 inch LCD to the drywall. I watched a few videos and the process appeared to me at the time doable with my level of expertise (ubernovice). I ordered the tilting/swiveling wall mount but wanted some advise on several things before I bore holes on the drywall. Hope you guys can help.
Here's what I have:
TC-L55ET5 LCD TV (55.2 lbs)
Monoprice PID 6200 Swiveling TV Wall Mount (guessing 60 lbs)
6 x M8x90 Screws (came with the mount)
1 x stud
The M8 screws are HUGE and the instructions are for engineers (see attached). This is what threw me off guard and started reading about different screw types and now I'm so confused on size, threads, pitches, pre-load, course/fine, grade/strength
Q1) Found one (1) stud I can use (middle-left side). Should I use the massive M8x90 or can I use a smaller wood screw for the stud portion of the mount? One video I watched claimed he used a 300lbs rated wood screw and it appeared allot smaller than the M8x90.
Q2) If using the M8x90, what size do I need to pre-drill in fractals? I've gone through several Google-ed guides on wall anchors and screws and I just couldn't believe how much science goes into using a screw.
Q3) If using another type of screw, what size/grade/nominal/etc? Please recommend. I literally slept with a headache reading curiousinventor guide on screws (information overload :)).
Q4) Considering the approximate total weight of the LCD + mount is around 120 lbs, and two of the screws will be anchored in studs, how many more drywall anchors should I use? Will two (for total of 4) be enough for a swiveling (non-stationary) mount? Actually hoping that 4 total is sufficient for a secured anchor but I'm no engineer.
Q5) Does the drywall anchor need to be rated for the entire weight (120 lbs) or more/less? I wasn't sure if the total weight will be divided into the number of screws used to anchor (ie: 120 lbs = 4 x 30 lbs anchors OR 120 lbs = 4 x 120 lbs anchors).
I hope that I made sense. Also, thanks for reading through (if you have) the lengthy post. If I missed anything, please let me know.