Kit came with a small hole in hardware bag. Kit should have had (4) 7/16 x 3" long and (4) 7/16" x 4" long bolts. Kit contained (4) 7/16 x 3" long , (2) 7/16 x 4" long, and (2) 7/16 x 5" bolts. I'm not sure
what happened to the hardware bag or why the bolt count was incorrect.
I haven't installed this kit yet but the mounts seem to be heavy duty and strong. When I got the package I was surprised because I wasn't expecting the package to be as heavy as it was.