What size tap to use for 3/8" fittings?

Hellion_Prime · 05-22-2001, 11:06 AM

I'm about to start construction on my resivior tank, which will be a 4"x4"x4"
junction box. I've got a Craftsman 37 peice tap and die set that I got for christmas just for this purpose, and I'm pretty sure that I have the correct size in the kit.. I just dont quite know which one it is. Can anybody point me to some information on how to do this the right way?

Thanks!

--HP

LiquidCool · 05-22-2001, 04:03 PM

Sorry, but pipe thread is different from normal bolt thread. You need a tap that is 3/8"NPT. I normally cant find them at a home depot or anything, you'll probrably have to order it.

Also, do you mean 3/8" tubing? Or are you doing a 3/8"NPT thread? The sizes you use will be either 3/8"NPT or 1/4"NPT, with 3/8"NPT being larger

05-22-2001, 11:06 AM	#1
Hellion_Prime Cooling Neophyte Join Date: Nov 2000 Location: Arlington, MA, US Posts: 90	What size tap to use for 3/8" fittings? I'm about to start construction on my resivior tank, which will be a 4"x4"x4" junction box. I've got a Craftsman 37 peice tap and die set that I got for christmas just for this purpose, and I'm pretty sure that I have the correct size in the kit.. I just dont quite know which one it is. Can anybody point me to some information on how to do this the right way? Thanks! --HP __________________ That which does not kill me had BETTER do enough damage to keep me from firing back!

05-22-2001, 04:03 PM	#2
LiquidCool Cooling Savant Join Date: Apr 2001 Location: Central Florida Posts: 231	Sorry, but pipe thread is different from normal bolt thread. You need a tap that is 3/8"NPT. I normally cant find them at a home depot or anything, you'll probrably have to order it. Also, do you mean 3/8" tubing? Or are you doing a 3/8"NPT thread? The sizes you use will be either 3/8"NPT or 1/4"NPT, with 3/8"NPT being larger

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