# Propane fitting standards **URL:** \ **Category:** Factual Questions\ **Created:** [May 18, 2011, 2:43pm UTC](https://boards.straightdope.com/t/propane-fitting-standards/582322 "2011-05-18T14:43:34Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Balthisar](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/balthisar/32/2825_2.png) [@Balthisar](https://boards.straightdope.com/u/Balthisar)\ **Post date:** [May 18, 2011, 2:43pm UTC](https://boards.straightdope.com/t/propane-fitting-standards/582322/1 "2011-05-18T14:43:34Z")
Google is _not_ my friend today. Can anyone help me find the following?: [ul] [li]What are the technical standards for propane tank fittings in the USA? For both standard, 20 lb. tanks as well as for the torch/camping bottles (I think they’re the same, but I’m not home to be able to check). Google keeps showing fittings that work, but with no specification data.[/li][li]What are the specifications for the same in China?[/li][li]Any idea where I can order an adapter (or the fittings to build an adapter) in order to connect a USA propane device (e.g., a grill) to a Chinese propane tank?[/li][/ul] It’s enough trouble to find the information here, let alone trying to figure out how to do it in a country where I don’t speak the language! ---
**Author:** ![Gary\_T](https://avatars.discourse-cdn.com/v4/letter/g/3ec8ea/32.png) [@Gary\_T](https://boards.straightdope.com/u/Gary_T)\ **Post date:** [May 18, 2011, 3:10pm UTC](https://boards.straightdope.com/t/propane-fitting-standards/582322/2 "2011-05-18T15:10:53Z")
I googled _propane thread size_ and found these: 1"-20 thread mentioned [here](http://www.spiritburner.com/fusion/showtopic.php?fid/403/tid/18649/fbb_session_id/6d88561553c08c37780933810c2c61b9/). A number of details to sort through [here](http://www.bestmaterials.com/PDF_Files/propane-fitting-threads.pdf). Probably more there if you want to search for it.