This is not a commercial offering exactly so I hope I'm not breaking any rules. In any case, I purchased 50 of these by mistake many months ago and procrastinated to the point of it being unreasonable to return. I'm just looking to recoup some of my cost.
304 cast stainless 1/2" NPT to 1/4" NPT reducing coupling (female threads both ends). Here's an example of a retail price at about $4 each
Make me an offer. I have have two boxes of 25. I can probably get 25 in a $5 flat rate priority box.
No, I have no idea what you could use them for. Army helmets for your mice?