Threads on waterblock (help)

The threads ony Raystorm for the GTX670 are really tempermental whe  screwing in fitting and stoppers.

im worried that il damage the threads but cant seem to get the fitting screwed all the way in.

Make sure you are screwing them down at a perfect 90 degree angle (well, you get the idea.) You don't want to dethread the fittings or the block, so be careful. If it isn't giving way, and the fitting hasn't screwed in all of the way, take it out and try again. Don't force it.

It screws in alright till about half thread then it catches as if the end of the thread has been reached. 

One of my fittings seem to always angle no matter how straight i beging 

One of my fittings seem to always angle no matter how straight i beging