G
o
o
g
l
e
×
Please click
here
if you are not redirected within a few seconds.
All
Images
News
Videos
Maps
Shopping
Books
Search tools
Any time
Any time
Past hour
Past 24 hours
Past week
Past month
Past year
All results
All results
Verbatim
National pipe thread
View all
American National Standard Pipe Thread standards, often called national pipe thread standards for short, are United States national technical standards for screw threads used on threaded pipes and pipe fittings.
Wikipedia