Help finding a tap Options

[6G94celica]

So i bought a black light BLITZ exhaust temp and i cant find anywhere that i can get a tap for it. ive gone to every autoparts store around, fastenal and hardware stores and the internet. supposedly its a M1 28G thread which makes no sense to me but i think thats what i need. if anyone has ideas please let me know.

[97lestyousay]

M10 x 1.25 pitch is .04921 = about 20 threads per inch Drill size for tap 11/32

M10 x 1.5 pitch is .05905 = about 17 threads per inch Drill size for tap letter R

M10 x .75 pitch is .02952 = about 34 threads per inch Drill size for tap 23/64 a tight fit but should work well.


Those are pretty much the common M10.
You should be able to go to a hardware store get the metric size bolt and compare
it. If you can't find all the metric ones compare standard bolts to see which threads
mesh the best. Hold the bolt against the fitting thread into thread and look for light and gaps
between them.


The .75 is the least common and finest thread, it would be my guess for a thin
wall application. A standard 10-32 us bolt thread should mesh fairly well with it.
It is a much smaller diameter than your metric but it is a quick way to check the threads.




This post has been edited by 97lestyousay: Jun 5, 2008 - 1:32 AM