100mm x 6 screws suitable for this TV ?

[Keitai]

you have a 40mm plug and want to use a 70mm screw you will need a gap to accommodate the excessive screw length poking out the back off the plug so an excessively deep hole other wise the jacking out head twisting off or screw grounding i mention about will probably happen

my suggestion drill a 55mm hole knock the plug in 5mm below the surface take a screw that equals the bracket thickness plus plug depth so assuming the bracket is 6mm thick plus 45mm plug gives you 51mm so a 50mm/2" screw is perfect
remember it fine for a screw to only penetrate 5 mm short [35mm] as the load is approaching zero when divided between 4 wall plugs

When I put up this oven thing 17kg up it must put much more pressure on the screws than a thin tv as it's far from the wall so I chose 4 x 100mm 6mm screws in 8mm duo plugs. I thought being longer -100mm they'd be stronger but you think I was pointless to use such long screws? Should ve used 70mm x 6mm?

Don't have 50mm x 6mm or they don't exist dunno