[Packers]

I wanted to know if anyone has ever come across this thread. Its stated in the catalog as being M2.5X5.6. At first I almost thought this was a mistake, until I searched the web and found some standard screws available with this configuration.

what I want to do is repair an indexable milling cutter. So I welded up the pockets, and now I want to put the same screws back in this thing, and I cant figure out how I am going to create a threaded hole with these specs

Is there a tap or roll form tap that has this M2.5X5.6 thread? Is there something that I am missing, like maybe a conversion to an inch size? Let me know if you have any info about this one. Thanks

[RICHARD ZASTROW]

Maybe it's 2.5 dia. X 5.6 length? If so, the pitch spec. is missing.

Dick Z

[Superman]

Dick is correct

ISO states that if a thread pitch is omitted on a metric thread, then it is defined as a standard "coarse" thread
- the standard states the thread dia & the pitch is separated by a X sign ( this is where your chart makes a balls-up )
it looks as if your chart is European, by using a comma instead of a decimal point

there is no way the pitch on a torx screw is 5.6 pitch

[ger21]

Doesn't it call out the pitch as .08? Or is that referring to something else?

[Superman]

Doesn't it call out the pitch as .08? Or is that referring to something else?

That's the size of the torx (star shaped ) key ... more commonly seen/defined as a T8....wiki link

standard "coarse" pitch for a M2.5 is 0.45mm

[juergenwt]

It is M2.5 x 5.6mm long. M2.5 has a pitch of 0,45mm (standard coarse). ANSI screwed up. No pitch is given for standard coarse. Only in the US would people have a people have a problem. If you would see M2.5 x 0.25 - that would be metric M2.5 fine thread. Because Americans are used to seeing a pitch listed and most can not visualize metric dimensions, many have problems with metric. Remember - if you see M10, it is M10 coarsest pitch available(1.5) - period! If you see M10x1,25 - it is metric fine! If you see M10 x 20 - that can not be a pitch, so it is M10 by 20mm long,
If you see M10 x 1.25 x 20 it is metric fine (1.25mm pitch) x 20mm long!

Superman - you are dead on. European chart!