Screws for Downpipes

Davesnave

50Twuncle wrote: »

That is not strictly true - only Austenitic SS is non-magnetic !

And there we were, hoping for certainty....

Anyway, the SS screws I originally wrote about have been checked and they're non-magnetic and phillips head.

I think part of the problem is that they're on the small side. The others, which are magnetic, are beefier.

Le_Kirk

50Twuncle wrote: »

That is not strictly true - only Austenitic SS is non-magnetic !

I've just checked all the stainless steel screws in my garage and all of them are austenitic and not one of them is ferritic - phew!

Point taken though Unc

leveller2911

maninthestreet wrote: »

Never had an SS screw snap on me - are you sure they SS ?

Stainless steel screws are notoriously soft and snap very easily. The main problem is people either don't drill a pilot hole or they try and use an impact driver to screw them in or out rather than a cordless screwdriver and set the torque setting lower.

I use them regularly on church work when using Iroko or Oak timber and they need using with care.

mchale

Old fashioned but try brass screws

27cool

A smear of grease or Vaseline on the screw is always a good idea. Making it more likely that the screw can be removed if required.