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Old 05-20-2011, 01:23 PM   #1
700PSS
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Default Best place for odd sized metric fasteners (M7 x .75 Bolts)

Hey guys,
Anyone know where I can find 7mm socket cap or button head bolts?
Here's the kicker.......it needs to be a 0.75 fine thread pitch.

I buy and sell cycling parts and these are used as the mounting bolts for some high end Shimano XTR shifters. I've searched online and the m7x.75 seems to be the red-headed stepchild of the metric system.

I'm almost to the point of drilling out the holes and re-tapping them but figured I would check here first.

Thanks in advance
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Old 05-20-2011, 01:44 PM   #2
charle10
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Default Re: Best place for odd sized metric fasteners (M7 x .75 Bolts)

Have you contacted Shimano, or a bike shop that would service Shimano components in the area? Rather than looking for M7 x .75 screws, I'd suggest looking for Shimano XTR _ _ _ _ bolts or screws.
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Old 05-20-2011, 01:48 PM   #3
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Default Re: Best place for odd sized metric fasteners (M7 x .75 Bolts)

Foster Farrar on King Street. They got the best selection I've ever seen, stainless, grade 8, you name it.
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Old 05-20-2011, 01:52 PM   #4
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Default Re: Best place for odd sized metric fasteners (M7 x .75 Bolts)

McMaster-Carr
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Old 05-20-2011, 03:07 PM   #5
700PSS
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Default Re: Best place for odd sized metric fasteners (M7 x .75 Bolts)

Quote:
Originally Posted by charle10 View Post
Have you contacted Shimano, or a bike shop that would service Shimano components in the area? Rather than looking for M7 x .75 screws, I'd suggest looking for Shimano XTR _ _ _ _ bolts or screws.
Already tried, the shifters haven't been in production since the mid nineties. I also did a search for XTR _____bolts and screws.

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Originally Posted by PaulR View Post
Foster Farrar on King Street. They got the best selection I've ever seen, stainless, grade 8, you name it.
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McMaster-Carr
Thanks for the links. I've never heard of Foster Farrar and I forgot all about McMaster. I'll check them now.
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Old 05-20-2011, 03:43 PM   #6
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Default Re: Best place for odd sized metric fasteners (M7 x .75 Bolts)

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Originally Posted by shoot summ View Post
McMaster-Carr
I would have said that too.....but i went to browse the catalog online and they don't even list 7mm at all.

Is 7mmx0.75 an actual size of metric hardware?
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Old 05-20-2011, 03:45 PM   #7
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Default Re: Best place for odd sized metric fasteners (M7 x .75 Bolts)

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Originally Posted by dipper View Post
I would have said that too.....but i went to browse the catalog online and they don't even list 7mm at all.

Is 7mmx0.75 an actual size of metric hardware?
It is, but it's obscure.
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Old 05-21-2011, 06:17 AM   #8
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Default Re: Best place for odd sized metric fasteners (M7 x .75 Bolts)

Have you tried Fastenal? I doubt they have those as regular stock or list them online, but they may be able to order some for you.
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Old 05-21-2011, 08:50 AM   #9
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Default Re: Best place for odd sized metric fasteners (M7 x .75 Bolts)

I've been a fastener engineer for the last 14 years. 100% of what I do is designing fasteners for customer applications and the tooling to make them.

I've never seen a M7 x .75 thread
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Old 05-21-2011, 10:02 AM   #10
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Default Re: Best place for odd sized metric fasteners (M7 x .75 Bolts)

An M7, if it existed, seems like a large fastener for the application. I'd drill out for a Time-Sert or similar and use an M6 fastener.
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Old 05-22-2011, 08:00 AM   #11
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Default Re: Best place for odd sized metric fasteners (M7 x .75 Bolts)

M7-.75 is a defined ISO fine thread, class 6G.
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Old 05-22-2011, 08:24 AM   #12
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Default Re: Best place for odd sized metric fasteners (M7 x .75 Bolts)

Quote:
Originally Posted by Ironcrow View Post
An M7, if it existed, seems like a large fastener for the application. I'd drill out for a Time-Sert or similar and use an M6 fastener.
It does exist, but like Moose said it is obscure.
The funny thing, I have two metric tap & die sets and they both have the m7x.75 taps and dies. I thought about turning down some round stock on the lathe and threading it but it seems like too much work. I'm just going to drill it out and re-tap.

Thanks for all the replies.
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Old 05-22-2011, 09:14 AM   #13
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Default Re: Best place for odd sized metric fasteners (M7 x .75 Bolts)

Oh, I'll readily stipulate that the thread exists. I meant that figuratively. Sure, ISO wrote it down, but who on the planet ever actually cut that thread? Besides Shimano
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Old 05-23-2011, 02:22 AM   #14
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Default Re: Best place for odd sized metric fasteners (M7 x .75 Bolts)

Maryland Metric might have them or be able to get them. www.mdmetric.com
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Old 05-23-2011, 09:23 AM   #15
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Default Re: Best place for odd sized metric fasteners (M7 x .75 Bolts)

Im working on something right now with M7 fasteners. I didn't measure them, I thought they were M8s and I was disappointed when I found out I couldnt buy more of the bolts I needed
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