I purchased NASTA brand step tubes because of price and all stainless hardware and mounting plates. I got the stainless tubes, but their brackets and hardware are still all stainless if you get the black tubes. I ordered them from JC Whitney. My body weight has been as high as 265 without so much as a wiggle from them. No matter what brand you get, take it from me, use anti-seize on the bolts when mounting them. The mounting process is easy, but I seized up one of the bolts and had to cut the head off, have the threaded portion removed by heating the tube with a torch, and purchased new bolts to complete the install.
