Locating a H80i GT Thumbscrew

One of the thumbscrews for my cooler was a lemon and only had a few mm of internal thread so wouldn't lock down that corner of the cpu. I have a brass motherboard standoff doing the job atm which as you can imagine looks really terrible lol.



Anyhow support couldn't help me out with a replacement and said id have to replacement the whole unit which tbh is a pain in the bum. Any one have any other idea how i could get a replacement thumbscrew?



Thanks.