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post #1 of 5 Old 07-18-2014, 11:08 PM - Thread Starter
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Exclamation wall mount problem

Not sure if this is the thread to ask this



I have a 65" Samsung tv that is 63 pounds I got a Sanus mount http://www.futureshop.ca/en-ca/produ...7c310dc332en02 It comes with 3 1/2" lag bolts. I drilled the 4 holes into the centers of 2 studs but hit concrete after 2 1/2 inches. 1/2 dry wall meaning 2" of stud. can I safely us 2 1/2 lag bolts instead?

Help please!
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post #2 of 5 Old 07-19-2014, 04:53 AM
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Assuming this isn't an articulated mount and has a conventional four hole mounting pattern. If so, may I suggest using a 5/16" or larger - 5" long Tapcon cement anchor screw that threads through both the stud and into the cement for the two upper mounting points. You'll need a small hammer drill for the pilot hole and a masonry bit of appropriate diameter and length.
You can use shorter lags on the two lower mounting points since they aren't subjected to the same forces.
If the cement construction is block with hollow cavities that you happen to hit, I would switch to a toggler type anchor and a 6" long 1/4" machine screw to enable insertion through the extra depth.
This mounting type will require a 1/2" diameter hole through all materials to the cavity.

underachiever extraordinaire
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post #3 of 5 Old 07-19-2014, 09:32 AM
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If you are biting into wood real well you shouldn't have an issue with mounting your bracket with screws only 2". Electrical code for fixtures is max three turned threads at 50 pounds on an electrical box hanging from the ceiling.

Remember your tv is pushing down with force not pulling out. You could probably hang it on one bolt (not saying I would try that). It would be different if you had a swinging arm mount. But with the flat mount you have you shouldn't have any problems if your really hitting wood on all four screws.
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post #4 of 5 Old 07-19-2014, 10:13 AM - Thread Starter
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Thanks for helping

The tapcon way is the best but I don't have the tools nor do I know the type of cement behind the walls. I don't really want to drill into to it. I think I will go with the 2.5" lag bolts.

I have drilled holes with a 7/32" bit any suggestions on the type and size of lagbolt to use?
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post #5 of 5 Old 07-20-2014, 04:18 PM
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Take the lags the mount came with down to your local big box store and buy the same diameter but just shorter, the people at the store should be able to help you find what you are looking for.
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