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I agree they are cheap and you get what you pay for but they are more than good enough for DIY. Yes there will be bent screws just like there are fault spindles and VFD's but in the grand scheme of things and considering the numbers they must sell I think the overall percentage will be low.!
Saying all chinese screws are like spaghetti is incorrect, Others read this and are put off from buying from china and here in UK this can severly up the cost of building a machine.

Gud day. .:wave:[/QUOTE]

Point taken.
But, How many people here will buy dozens of screws for their small home built machines. Not too many I think. This is my experience and I have commented on what I ended up with. I won't lie and say the screws were all within 2 microns of parallelism. It's like me saying Arsenic is good for you.
I have also bought 2 VFD's from China with the associated spindles and haven't had a problem with them. Does this mean now I need to stay clear of them because you have had a bad experience with them. Not at all. For the price I will continue to buy them until I run out of money or things to make. Compared to running a very noisy wood router the VFD's are in a world of their own and now my neighbours don't complain. :-) I love 'em.

All I can do is post MY experiences here so others may be more aware of what to expect. Very doubtful it will stop them from actually buying them due to how cheap they are

I will still buy the ballscrews from China as they are very cost effective for my needs and if I have another slightly bent one I will straighten it. It doesn't take long but really isn't something I should have to do with a precision part.

I won't continue to hijack this thread as I have had my say. Thanks for your informative opinion and foresight.
Richard.