Bro-tek maks some good stuff and also puts in all the hardware needed for their applications. They test it all and user feedback is quite good. I have purchased quite a bit for my BX32 and also noted they pay particular attention to bolting grades as well with much of their stuff, that was enough for me to check them out...and I am glad I did.
I also think their price is better than many of their competitors, making it the first place I look for protection and add ons.
I also have their thumb attachment and noticed it was case hardened by welding stringers on the contact portion of the foot.. those little details speak for themselves.