Double Glazed - Steel Support - Fixings

[SirLancelot]

Hi all.

A-fixing this light:

To this:

You can see the pre-existing hole where wire exits:

As you can see there is a steel support beam behind the plastic.

I need help choosing the screws/fixings to use for this job.

Many thanks to any, willing to help.

SL.

 

[DAZB]

It is quiet likely to be an aluminium post but even if it is steel you could use any self tapping screws or best option may be to drill a pilot hole with a 2-3mm drill bit and then fix with a suitable screw, just remember there is a cable in there to avoid.

 

[ronniecabers]

Place a rubber grommet around that exposed metal too ...
I honestly can't believe someone drilled into that . Where's the cable enter the corner post? As that should be a load bearing post. Don't get me wrong I'm not saying it's weakened in anyway , I'm more concerned it's been fed down the hollow metal and the post isn't holding a lot , plus putting electric cables through metal with no protection on the exposed metal edges is far from ideal, especially as that hole doesn't look much bigger than the cable