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PostPosted: Mon Oct 22, 2018 6:28 am 
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Joined: Sun Jan 23, 2011 4:54 am
Posts: 1797
I've had good luck with Metric & Multistandard (www.metricmcc.com ) in the past, but it doesn't appear they have a grade 10.8 in coarse thread on their website. all of their low head, coarse thread bolts are 8.8.. BUT you might give them a call..


I ordered all kinds of stuff from them back when I ran my fab business, and they would sell me small quantities when I needed them.

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Matt Blehm
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PostPosted: Mon Oct 22, 2018 6:41 am 
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Joined: Fri Nov 06, 2009 5:08 am
Posts: 1184
Location: Philly
Nice call Mike. I called the local Fastenal and they found some at other stores in open boxes. So they're having 8 shipped to my local store.

Thanks again everyone!

-Kyle

BTW: These hold the Quaife together in my Dad's Lotus Super 7.


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PostPosted: Mon Oct 22, 2018 3:41 pm 
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Joined: Wed Oct 26, 2011 6:33 pm
Posts: 30
Location: Lagrangeville, NY
disquek wrote:
These are used in a Spitfire Quaife diff. Quaife is of little help, referring me to the local distributor, who is of less help.

The bolts are M12 1.75 20mm with reduced head heights (low head). The heads are 7.8mm high

They are 10mm drive.

They are 10.9 grade.

The usual suspects of McMaster, Fastenal, etc don't seem to have them.

Thank you!!
-Kyle



Try https://sarjo.com/

If they have it and won't ship a small quantity, I will stop by and grab some and drop it in the mail.

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PostPosted: Mon Oct 22, 2018 5:59 pm 
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Joined: Thu Mar 27, 2003 7:43 am
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Location: Pueblo West, CO
I was buying individual/small quantity from AAA Metric
$15 minimum when I was ordering vs pickup at the store (this mare than a few years ago)

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PostPosted: Thu Oct 25, 2018 9:33 am 
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Joined: Fri Nov 06, 2009 5:08 am
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Location: Philly
Thanks everyone!

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PostPosted: Sun Oct 28, 2018 2:54 pm 
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Joined: Thu Sep 12, 2002 5:31 am
Posts: 814
Location: Central Florida
I'm a little bit late on this, but in such an application, if the head height is a real limiting factor, it is always possible to use a screw with a taller head and machine or grind down the excess height. Don't get it red hot or you may lose some strength in the wrenching area. As long as you can torque it correctly, it will generally be fine. For example, AN and NAS bolts designed for shear applications have thinner (lighter) heads than general-use ones and can be used with thin nuts. Danger! - don't cut down the head of a tension bolt - such as for a connecting rod- or it might get pulled-off... Joel

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