Allan
Feb 23 2005, 05:24 PM
Are pipe threads different than sae?
Cap'n Krusty
Feb 23 2005, 05:26 PM
YES! NPT is tapered, SAE threads are not. The Cap'n
michel richard
Feb 23 2005, 05:28 PM
If you man NF and NC threads, yes they are different. NPT threads are tapered.
Mueller
Feb 23 2005, 05:30 PM
you want NPT......
yes, they are different, there is also a british pipe thread...
OSH or Craftsman should have the tap you need...
you'll need to pick up a 7/16 drill bit......
not sure how thick the casting is, but the "effective" thread length is .40, meaning, you don't want to tap too far in........