metric size

MF294-4 · Jun 9, 2017

I am replacing the tie rod end on my JD 750 (Yammer). Screws into a tube which the threads were wore out. Taped it to M18. Long story short,M18 to large,M16 to small. 1.5 thread pitch. Is there a M17?

Mike Groom · Jun 9, 2017

Yes,There is a 17 size in metric in 1.00 and 1.50 thread size,kind of a oddball. By the way to convert metric to english you probably already know,divide the metric # by 25.4 to get english or times the english number by 25.4 to get metric,sometimes it helps me to determine bolt sizes. Hope this helps.

Hendrik · Jun 9, 2017

Mike is correct; M17, pitch 1.5 mm (fine) or 1.0 mm (extra fine) are standardized in ISO 724. M17 coarse pitch is not in this standard. I am in metric country (The Netherlands) and been around machinery all my 62 years and have never come across M17 thread.
M16: 2.0 mm coarse; 1.0 and 1.5 mm fines
M18: 2.5 mm coarse; 1.0, 1.5 and 2.0 mm fines
HTH, Hendrik

Janicholson · Jun 9, 2017

If you tapped it to M18, what is too big about it? I also have not seen M17 as a produced size even though it might be in charts. Jim

MF294-4 · Jun 9, 2017

Went to the Deere dealer today. Parts kid tried to tell me the parts description said it was an M12. No I don't think so. So after a little convincing and him reading closer, he see's it's a M17. He is going to get me a couple of rt hand and a couple of left hand nuts. Deere only had 6 right hand nuts in the system and that was in Atlanta. They had 60 or 160 left hand. Now I have to fix my tube which I tapped to M18.

DGinVT · Jun 10, 2017

Manhatten Supply Corp Catalog lists: M17 X .5, M17 X 1.0 and M17 X 1.5 in their tap & die section.

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