Well, in general, I like the product. But I don't think the four small screws they sent about an inch long will actually support the weight of a 50 pound tire and rim screwed into the plywood side of a trailer for a very long period of time, that is just my opinion as a welder. who builds trailers and works as a carpenter. But two bolts in that 3/4" plywood and backing plates. As well as the two bolts, they obviously did their job well too, the spare tires hanging off the right side of the trailer are now happy to know they're properly attached. When the spare wheel and the carrier ever fall off the trailer i need to update this review lol