Hello,

Following on from my bath waste thread, I really don't like plastic
backnuts!

What size of backnut fits which waste?

Is it a simple matter of getting a 1 1/2 inch backnut for 40mm
waste and 1 1/4 inch for 32mm waste?

Is a 1 1/2 inch backnut 1 1/2 inches across the nut's faces, or is it
the diameter of the hole?

I measured the plastic nut on my bath waste and its about 50mm af, so
I wonder whether for a 1 1/2 inch waste whether I actually need a 2
inch nut? So it's not as simple as matching the nut size tot eh pipe
size.

BTW, where can I get a 50mm af spanner to fit?

Thanks,
Stephen.