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5' X 10' Polymetal wall sign installation

MSA

New Member
I have a 3mm 5'h X 10'w polymetal sign I am installing on a storefront wall but I'm not sure how of the many fasteners to use, 4 top and 4 bottom? I guess I would like to know that it's not going to bow out if I don't use enough.

Thanks,

Mark
 
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