They weren't crossed threaded, at first I thought it was cause the studs were painted. Is it just a case of poor Chinese machining? I've always been able to thread lug nuts down by hand easily. I had to use the lever of the socket in my hand to get them to spin on.
I assume this was your first time doing this with these lug nuts? If so, it doesn't surprise me. When I purchased snowy's for my wife's 2017 Impala last November, I found the same thing when I installed the new lug nuts that came with them as a package.
Some would spin on OK but most caused me some greive of some sort.
I wrote it off as likely being cheap, mass produced, low on quality control, Chinese junk. They were also smaller (OD) than the stockers but they did go on nonetheless.
I originally torqued them to 110 foot Lbs then rechecked after about 50-100 kms and noticed some had backed off slightly, to which I retorqued them to 115 foot Lbs.
I just checked them again last week-end and all were still good. My fear is, once spring comes and I go to remove them, the chrome on them will spin/break on me and of course I'll be in a pickle like I have experienced before.
We'll see how that goes and that will determine if I use them again next winter?
Edit: Meant to add, the studs on this car were in great shape, as they should be with only 20,000 kms on the car. No visible rust/corrosion on them that I seen.