Soft drink bottle caps

These are soft drink bottle caps modeled according to the PCO1810/PCO28 specification of the International Society of Beverage Technologists (ISBT).

* http://imajeenyus.com/mechanical/20120508_bottle_top_threads/index.shtml
* http://www.threadspecs.com/threadspecs-downloads.asp

One is closed, the other one has a spout for tubing with inner diameter of 5/16", for example http://amzn.com/B00E6BD6FU.

Note, this is for an irrigation project and I would not let food come in contact with thi