Problem screw

A suggestion a little while ago was to get a cheap or disused surface box and break the threaded inserts out.

Does anyone happen to know the typical size of screws used in the connectors of various junction box sizes? If any of these are M3.5 then they might be a good item to use as well, since thay are typically a less fiddly size. From memory I'd guess they're a coarser thread though.

Final tip is that some electrical screwdrivers or sets have a M3.5 tap on/in them and can be used to cut a new thread if there is enough metal left.

IanC

Draper make a tap with a plastic handle for this - (like a short screwdriver) - very useful tool for a couple of quid.

"> Stop cross posting, Stevie !

Tell me the group the OP intended it for?

I do not look in any of these except dvd. diy looks appropriate