T.K.Excellent Flat Head Phillips Electrician's Machine Screw Kit,370 Pcs

No Issues

Good quality and fast delivery

Note that these are not the same thread as UK/EU M3.5 nuts, although they look very similar.I now have a lovely box of screws that won't fit the nuts I bought. Screwed; not in a good way.

Despite showing up in a search for "electrician M3.5", and being *almost* the right size... These screws will not work for screwing in a UK socket into a UK wall-box.Despite trying with several screws, adding a bit of 3-in-1 oil, and trying a couple of different wallboxes these absolutely refused to go more than a millimeter or two into an standard Appleby dry lining wall box.Getting some explicit M3.5 screws from a DIY shop instead and then glided in with no effort at all.

Great assortment

Thread pattern not compatible with older steel casings

Too big for uk sockets. Attempted plaster and metal back box’s. Broke the plastic ones and got stuck in the metal. Complete waste of time… had to replace back boxes.

Good number of screws/lengths - all seem to be high quality. HOWEVER the packet and description says that they are "#6-32". The 32 is supposed to indicate the number of threads per inch - but these do not conform to the accepted definitions. They appear to have 24 threads per inch and are therefore not suitable for fixing faceplates etc.