What type of screws are the best for attaching door stays, bolts and whatnot to upvc doors and frames?
Screwing into UPVC
Jan 28, 2016
3 Replies
Have you got any steel box section inside the frame (many do - usually the coloured frames and the better class of white). Try a magnet...
A self tapping screw is fine for the PVCu and the metal box section if there is any. Both materials with work fine with a small pilot hole, as long as the box section is not too thick. Don't us a twin thread screw - you want a fairly coarse thread. Simon.
These are the types used by window frame makers
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Richard
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