I purchased a 'KEENEY 1¼ Open Grid Bathroom Sink Drain without Overflow, Brushed Nickel'. It's 1½ male threaded on the outside with a few threads on the inside to attach a 1¼ extension to. I'd like to attach my 1½ tubular directly to the 1½ male threaded part. Is there a nut or adaptor that does that?

if it is truly 1 1/2 inch thread then treat it like the strainer from a kitchen sink.
just use a kitchen tailpiece, flat washer and a standard 1 1/2 inch slip nut.

look like this only longer..

[www.etundra.com]

I measure it as 1½ with calipers but the 1½ nut that fits my kitchen sink tailpiece is too big.

is it under a cabinet where it can't be seen? you may have to use some kind of a rubber fernco fitting.

it would be 1 1/2 inch copper tubing x 1 1/2 inch tubula1
1 1/2 copper tubing measure 1 1/2 inch inside so the fernco should slide over your 1 1/2 inch threads

No, it's beneath a wall-hanging bathroom sink. I could do something as complicated as you suggest, but I'll just live with it. Thanks for your help.

Bathroom sink tailpieces are normally 1-1/4”

NO, there is NOT.

use the extension/tailpiece - that is the NORMAL installation

BUT

it is YOUR bath, so butcher it as you see fit



Edited 1 times.

[www.lowes.com]

Aren't most sinks made to accommodate 1½ ?

Thanks. I don't want to butcher it. I asked in case the part I wanted existed but I didn't know how to find it.

The drain may be marked 'universal' but it is NOT code compliant to install on a non overflow basin even though it may 'fit'.

If installed on a non overflow basin 'gunk' WILL accumulate in the 'dead' non draining overflow space which is now a dead end.

If WILL foul and stink at some point, not to mention the stagnant bacteria laden standing 'sludge' which WILL form.

In addition the constant wetness will rot out the steel under the chrome plating causing a leak down the road.