This is not a HappyBuy. This appears to be a genuine Strida. After I looked at it for a while I found the defect. There is a little pieces of square metal at the base of the clamps and it was just slightly off center. I was able to straighten it with a pair of pliers and the screw went through successfully. I was not looking for it so didn’t see it, and I see how someone packing the hardware bag would not see it either. I’m happy that it is solved.