When I asked SXK for those spare 510 nuts last year, the guy answered me from his apartment and said he'd give them to me for a buck each for 5, but he'd have to ship them DHL which was 16 dollars. 21 bucks for 5 extra SXK compatible 510 nuts. Still not bad.
BUT, the whole thing seemed a bit fishy and I suspected he might have been trying to pull some kinda fast one on me. Especially since he wanted me to put the money in his own personal PayPal account. His English wasn't too great either. I took the chance and sent him the money late at night our time over a Facebook conversation.
5 days later the parts were in my hand, DHL.
Short version? The one time I've used DHL it was blazing fast.
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