Drilling into uPVC

[Burnsie1983]

Hi.

I didn't know where to put this question...

I am wanting to fit a smart doorbell. My external door is a porch which only has brick to waste height. At doorbell height it's glass and uPVC

The uPVC on the right hand side (you can see where the old doorbell was suck on) is not part of the door frame itself.

I can drill into the uPVC, but how do I hold it in place, ala raw plug they things. How thick are this fixings? It's not like drilling into a wall where the whole plug and screw go in.

I'm confused

Can someone help?

 

[Burnerman]

For fixing small items to pvc, use self tapping screws, which involves drilling a pilot hole smaller than the screw itself - have some practice until you get the correct size.
You may encounter some aluminium framework inside but you can drill through this too.
John

 

[Burnsie1983]

For fixing small items to pvc, use self tapping screws, which involves drilling a pilot hole smaller than the screw itself - have some practice until you get the correct size.
You may encounter some aluminium framework inside but you can drill through this too.
John

Thanks, I think I read similar. So, what are self tapping screws?! They just look like screws to me

 

[^woody^]

Any screw will self tap in plastic

 

[Burnsie1983]

Any screw will self tap in plastic

But what does self tap mean?!

 

[^woody^]

A tap is a tool for making threads in a material so that things can be screwed in to it. So a 'self-tapping screw' does not need the tool to make the thread, it does it itself.