M5 6H taps?

[LazyMan]

I have to run some parts on my 1100 and the drawing is calling out an M5 6H tap. I guess that has to do with tolerance. Is that just tolerance for the hole or thread? From what I gather this is just a standard hole?

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[Jim Dawson]

Google ''metric thread fit class''

H6 is the commercial standard for a nut.

[popspipes]

H6 = Basic Plus 0.0025" to Plus 0.0030"

According to Google, this is what it says............

[nutzilla]

It's a tolerance for the taps. The smaller the number the tighter the tolerance. 6h is what most people use.

[Steve Seebold]

It has to do with the tolerance of the pitch diameter of the thread.

[LazyMan]

Thanks, I just got thrown off because I have never seen it called out before especially considering its pretty much a standard tap tolerance.