Quote Originally Posted by CNCRY View Post
The seller is saying "For a ballscrew the external outer diameter is a totally unimportant dimension, because it connects to the ballnut with balls" which kind of makes sense but why call it a 16mm screw then. And Fred's are 16mm within 0.01mm ...
If you're still within 14 days very easy to turn around and tell them you don't want it if you've changed your mind. They've advertised as 16mm, so it isn't what you ordered... Doesn't matter if they think that is important or not.