Hi all, this is my first post (and its going to be a stupid one!)

I recently realised that the cold water tap on the sink in the bathroom was extremely loose and I discovered that what I believe is known as a 'retaining back nut' was broken. It is black and plastic and screws onto the tap just below the 'top hat washer' (I hope I`m getting all these terms right!) which in turn is below the sink itself so the sequence goes

Retaining back nut > top hat washer > sink > tap

Sorry if I`m oversimplifying things but I want to make sure I give all the required info.

I`ve searched all the local DIY stores, Screwfix Direct, and googled 'retaining back nut' but I cannot find any reference to this component.
Please does anyone know if it goes by another name or if they know where I can get this particular part online.

Thanks in advanced for your help

Talyn2k5

Go back to the places that didn't have it in plumbing and look for a 1/2'' conduit nut. They should have about the same thread. A real hardware would let you try it on one of the faucets in stock. It may be too small to hold good. Solve that with a 3/4'' washer from the nut and bolt area.

Hey Tally,

Labman gave you very good advice. Let me attempt to make it a little easier.
Most plumbing repair shops keep a "bone yard" around, ( old faucets, toilet tank lids, etc.) I bet if you would take your faucet into one of those shops thatyou would walk out with your faucet retaining nut. Good luck, Tom

Thanks for your help guys. Will try that tomorrow