Standard sized nuts and pipes? Home › Forums › Public Forums › General Plumbing › Standard sized nuts and pipes? This topic has 1 reply, 2 voices, and was last updated 18 years, 10 months ago by Retired plbg1. Viewing 1 reply thread Author Posts 15 Feb 2006 at 6:19 pm #277790 elaine Are the copper pipes and nuts (such as those sonnecting bathroom and kitchen faucets) a standard size across the country? Cometo think of it, is the a worldwide standard size? 16 Feb 2006 at 11:07 am #297145 Retired plbg1Participant Most of them in US are the same, but sometimes you run into an oddd ball. Art retired plbg Author Posts Viewing 1 reply thread You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In