Typical (brass) plumbing fixtures will explicitly state that they are lead free and be certified NSF-61, potable water, etc.
However, most stainless steel plumbing parts (like ball valves and schedule 40 pipe and fixtures, etc.) make no mention of potable water, lead, drinking, etc.
Assuming I source from US distributors (mcmaster, for instance) is it safe to assume that stainless steel plumbing fixtures are lead free, or even "zero lead" and are totally safe for drinking water ?
Thanks.