Stainless Steel engine bolts...

Last post 11-11-2005 8:35 PM by billchance. 21 replies.

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11-10-2005 5:14 PM

bigbear2592
Joined on 03-03-2005
Gibbsboro, NJ USA
Posts 3,252

Stainless Steel engine bolts...

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I picked 2 sets of these bolts from Thunderboltz off ebay, and let me tell you, as compared to stock these look real good and accent the bike nicely!

Stock on left SS on right.

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They also look better after there treated with metal polish.

Juan Bonet Jr.

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11-10-2005 6:45 PM In reply to

Infidel Rat
Joined on 11-29-2003
Tuscola TX USA
Posts 6,139

Re: Stainless Steel engine bolts...

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I bought some too - I still need to install them. On my list of things to do... I want to replace the engine mount bolts as well - they were very corroded when I removed them...

;

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11-10-2005 6:55 PM In reply to

bigbear2592
Joined on 03-03-2005
Gibbsboro, NJ USA
Posts 3,252

Re: Stainless Steel engine bolts...

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rat, know any company that would have those.
I had to get 2 sets of 54 to be done with, how many did you get?

Juan Bonet Jr.

11-10-2005 7:20 PM In reply to

AlanH
Joined on 05-07-2004
Lakeview MI USA
Posts 4,884

Stainless Steel engine bolts...Fastener Fable-1

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Be very selective as to what bolts you replace with Stainless Steel (SS). They are not high strength fasteners.

Check the head markings of the bolts you are replacing. Any head marking of Class 8.8 and greater should not be replaced with SS IMHO.

The SS screws that Yamaha furnishes with the billet accessories are not high strength applications so don't be mislead.

Use chrome plated steel bolts for high strength applications where required or get your bolts chromed.

*** Creator of the SS Laser Front Signal Bracket and Tuning Fork Lower Cowl Grille ***

*** List of Popular and Useful Tags Assembled for Quick Answers & Solution to Problems ***

Filed under: Fastener

11-10-2005 7:30 PM In reply to

TheOhioMike
Joined on 03-08-2005
OH USA
Posts 10,969

Re: Stainless Steel engine bolts...

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quote:
Originally posted by AlanH

Be very selective as to what bolts you replace with Stainless Steel (SS). They are not high strength fasteners.
Check the head markings of the bolts you are replacing. Any head marking of Class 8.8 & > greater should not be replaced with SS IMHO.
The SS screws that Yamaha furnishes with the billet accessories are not high strength applications so don't be mislead.
Use chrome plated steel bolts for high strength applications where required or get your bolts chromed.

He is 100% correct

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11-10-2005 7:35 PM In reply to

bigbear2592
Joined on 03-03-2005
Gibbsboro, NJ USA
Posts 3,252

Re: Stainless Steel engine bolts...

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I believe these are A2, if that means anything. And there not from yamaha.

Juan Bonet Jr.

11-10-2005 7:39 PM In reply to

AlanH
Joined on 05-07-2004
Lakeview MI USA
Posts 4,884

Re: Stainless Steel engine bolts...

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This url was posted by another member:

http://www.boltdepot.com/fastener-information/Bolt-Grade-Chart.aspx

quote:
Originally posted by bigbear2592

I believe these are A2, if that means anything. And there not from yamaha.

*** Creator of the SS Laser Front Signal Bracket and Tuning Fork Lower Cowl Grille ***

*** List of Popular and Useful Tags Assembled for Quick Answers & Solution to Problems ***

11-10-2005 7:48 PM In reply to

bigbear2592
Joined on 03-03-2005
Gibbsboro, NJ USA
Posts 3,252

Re: Stainless Steel engine bolts...

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Thanks for the info, its my guess that for the various covers its about par for the bolt, or am I reading it wrong.

Juan Bonet Jr.

11-10-2005 8:47 PM In reply to

AlanH
Joined on 05-07-2004
Lakeview MI USA
Posts 4,884

Re: Stainless Steel engine bolts...

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Check the head markings on the OEM socket bolts you plan on replacing. They are marked [

]
They range from Class 8.8 ~ 12.9 [

]

quote:
Originally posted by bigbear2592

Thanks for the info, its my guess that for the various covers its about par for the bolt, or am I reading it wrong.

*** Creator of the SS Laser Front Signal Bracket and Tuning Fork Lower Cowl Grille ***

*** List of Popular and Useful Tags Assembled for Quick Answers & Solution to Problems ***

Filed under: Fastener

11-10-2005 9:02 PM In reply to

MrWilson
Joined on 06-12-2004
Burlington CT USA
Posts 1,160

Re: Stainless Steel engine bolts...

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AlanH.. Man, I just love your posts! "Just the facts mam". No B.S. and always an education. Keep it up!

11-10-2005 9:28 PM In reply to

bigbear2592
Joined on 03-03-2005
Gibbsboro, NJ USA
Posts 3,252

Re: Stainless Steel engine bolts...

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The ones I already removed all say 10.9

Juan Bonet Jr.

11-10-2005 10:44 PM In reply to

ONAGER
Joined on 04-14-2005
Odessa FL USA
Posts 4,521

Re: Stainless Steel engine bolts...

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quote:
Originally posted by AlanH

This url was posted by another member:
http://www.boltdepot.com/fastener-information/Bolt-Grade-Chart.aspx
quote:
Originally posted by bigbear2592

I believe these are A2, if that means anything. And there not from yamaha.

that member was me.... im glad i can bring something to the table...

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11-10-2005 10:50 PM In reply to

ONAGER
Joined on 04-14-2005
Odessa FL USA
Posts 4,521

Re: Stainless Steel engine bolts...

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looking at the #'s the bolts you are replaceing are about a 30%-50% weaker then the ones from yamaha....

yamaha bolts, Proof Load 120,000 / Minimum Yield Strength 130,000 / Minimum Tensile Strength 150,000

stainless, Proof Load nothing listed / Minimum Yield Strength 45,000 – 70,000 / Minimum Tensile Strength 100,000

all are psi

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11-10-2005 11:04 PM In reply to

ONAGER
Joined on 04-14-2005
Odessa FL USA
Posts 4,521

Re: Stainless Steel engine bolts...

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looking at this pic, most of the bolts they replace arent under large amounts of stress, the stainless should be fine, but its still a choice you will have to make

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11-11-2005 12:35 AM In reply to

fcwarrior
Joined on 06-26-2003
Ft Collins CO USA
Posts 2,857

Re: Stainless Steel engine bolts...

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The Road Star chrome bolt kit worked well for me. Adds a little more bling!! It's in the Star accessory catalogue

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