FasTimeSS

iTrader: (47)

i bought like a **** load of an fittings and i dont knw what thread pitch or size they are, for example this lil choad
http://www.summitracing.com/parts/SUM-220648/

homedepot ace hardware no places carry a tap for that, and that is all im tryin to do is tap a whole for that thread size

THANKS

cambirdracing

iTrader: (4)

Most an fittings are a standard thread size. 1/2-20, 9/16-18 or whatever. Find a bolt that screws in it, take it to the hardware store and find a tap.

zdawg28

iTrader: (2)

well one side is pipe and the other side is flare, jic, basically standard pitch. The pipe thread has a special tap. The other side should be its true measurement

CarsandWomen

iTrader: (19)

I was under the impression that an fittings have to screw into other an fittings or they wont seal, in order to screw it into something else you get a fitting thats an on one side and NPT on the other, then tap your hole with the NPT tap and go with it.

FWIW, oreilly usually has the board that you can screw stuff into and find the measurement.

FasTimeSS

iTrader: (47)

orielys doesnt have anything that big on the boardd to screw into. and i cant find that tap anywhere

Speed Density

iTrader: (38)

What are you trying to do?

Bad Chad

iTrader: (94)

Sears has some big Tap and die sets

CarsandWomen

iTrader: (19)

Ace hardware usually has a huge nut and bolt section and i know the one by my house has all kinds of taps

v8sten

iTrader: (5)

^^^^ i second this, what are you doing? like said before one side is a 3/8 NPT (National Pipe Thread) the other is a -6AN flare. if you are wanting to screw the -6 (9\16-18") side into a flat piece of what ever it is not going to seal you will have to make it an o-ring seal. http://www.summitracing.com/parts/SUM-220166B/. The 3/8 NPT side will seal because it is a tapered thread.

the -6 side thread pitch
9/16-18"

the 3/8 NPT side thread pitch
3/8 NPT

FasTimeSS

iTrader: (47)

im tryin to tap an oil return back into the front cover and i just need to knw what tap i need for 3/8'' npt tap into it for a male end to go into

CarsandWomen

iTrader: (19)

thats just it, 3/8 NPT. that specifyes the exact thread and size. Just remember, NPT has a taper so dont tap it too deep or it wont work right. If you dont want to do that, they also make weld on fittings for like 10 bucks, take it too any weld shop and have em buzz it on.

http://www.jegs.com/i/Earl%26%23039%...67106/10002/-1

cambirdracing

iTrader: (4)

Most NPT threads take 11 turns to gauge right. We do this all the time at work.

V6 Bird

iTrader: (15)

You have to go to Sears or Northern...And if they dont have it for whatever reason..Find you a Snap On Truck nearby. Sometimes a large plumbing specialty store or a bolt supplier will have a tap for it. Fastenal is an option as well.

FasTimeSS

iTrader: (47)

thanks guys hopefully i got it figured out ai got a tap on the way

FasTimeSS

iTrader: (47)

GOD DAMNIT I GOT THIS 3/8'' 18 NTP AND ITS LARGER THAN THIS 1/4'' 18 NPT. AND IT STILL WONT FIT MY 3/8NPT FEMALE END WTF RAGEEEEEEEE!!!!!!!!!!!!!!!!!!!!!

v8sten

iTrader: (5)

huh???

(3/8 = 0.375) > (1/4 = 0.250)