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Electraglider_1997
Posted on Monday, July 03, 2006 - 06:36 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

What would be the absolute best, meaning strongest, bolts for the kick stand application?
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Teeps
Posted on Monday, July 03, 2006 - 07:54 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The steel-alloy (black) Allen head cap screws I used are supposed to be stronger than grade 8.

I spoke to the resident fastener guru at work about this subject again today. After learning the stock bolts are grade 8, and have built-in washers. He said that new stock bolts would be fine, if the proper tension can be achieved. He again suggested lubricating the threads and thrust side of the bolt head with a drop of clean motor oil. Then torque to the spec in the book.
Probably should remove the factory locking agent from new bolts first.


(Message edited by teeps on July 03, 2006)
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Electraglider_1997
Posted on Thursday, July 06, 2006 - 08:12 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Does titanium have better shear than steel-alloy or stainless grade 8??
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Wademan
Posted on Thursday, July 06, 2006 - 11:02 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I can’t say for sure as I don’t have any of my old school books in front of me but IIRC stainless alloys in general are weaker than a lot of high strength steel alloys; but there is a continuum for these two groups and they likely overlap. Titanium is not the wonder metal some think. It is just the best choice in certain loading conditions with certain design criteria (just as aluminum is better than steel is certain cases). I know high strength steel alloys have THE highest yield strengths. (unless there are some freak alloys I have not heard of) In conclusion ask someone with a book for a hard answer. But your best bet from my high dollar engineering education is high strength steel. Well see if it was worth the money. : )
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Dudeman
Posted on Thursday, July 06, 2006 - 11:53 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Quote: "The titanium alloy used in all of our fasteners is equivalent to Grade 5. Beware of "pure titanium" bolts at bargain prices which are generally equivalent to Grade 2 - they are not suitable for stressed applications."

source:
http://www.corsemeccanica.com/titanium_fasteners.htm
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Johnnylunchbox
Posted on Friday, July 07, 2006 - 12:25 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I thought the title of the thread said "Strangest Bolt". I was mistaken, sorry I have nothing to add to this thread.
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Pwnzor
Posted on Friday, July 07, 2006 - 02:13 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ok Johnny start a new thread because now I want to know about the "strangest bolt"

SAE Bolt Standards
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Blake
Posted on Friday, July 07, 2006 - 12:29 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

What steel alloy? What titanium alloy?

Grade 8 bolt or equivalent is likely to be the strongest you will find at the hardware store. That should be plenty strong.
: )
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Sleez
Posted on Friday, July 07, 2006 - 04:23 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

some good info on bolts and torque wrenches;

http://home.jtan.com/~joe/KIAT/kiat_1.htm
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Buelldyno_guy
Posted on Saturday, July 08, 2006 - 11:03 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

We have now found three different bikes with the pivot bolt having backed out and loose. ... We will call Tech Support Tuesday. ... Terry
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