Stainless is nice for rust prevention, but it's actually a weaker metal that a hardened steel. According to McMaster, two rod ends of the same dimensions, the one made out of stainless has a static load of 3500lbs, while the steel one is rated at 9500lbs. I do plan on using stainless steel materials because I'm sick of the bolts/nuts rusting, forcing me to cut them off when messing with the struts. No one really knows how strong these need to be rated to not break under daily/auto-x use. If you found something that doesn't rust and doesn't break for $45 a piece, then that's a damn good find because the AWRs are the same price, they rust, and they break.