Local (S.F. / north bay) place to buy M8x20mm rotor bolts?

[JMardy]

Re: grade, I still can't find OEM specs but there is this comment on the AF-1 site:

"This M8X20 bolt is also used on other Aprilia models in chassis and bodywork applications."

Given that, I can't imagine they would be using grade 12.9 or higher bolts, so I feel pretty good going with the grade 10.9's.

Saul, ST? What say you?

[motobecane10]

Originally Posted by JMardy

Re: grade, I still can't find OEM specs but there is this comment on the AF-1 site:

"This M8X20 bolt is also used on other Aprilia models in chassis and bodywork applications."

Given that, I can't imagine they would be using grade 12.9 or higher bolts, so I feel pretty good going with the grade 10.9's.

Saul, ST? What say you?

hell grade 8's are most likely enough so feel good about the 10.9's.

[auntiebling]

Originally Posted by JMardy

Re: grade, I still can't find OEM specs but there is this comment on the AF-1 site:

"This M8X20 bolt is also used on other Aprilia models in chassis and bodywork applications."

Given that, I can't imagine they would be using grade 12.9 or higher bolts, so I feel pretty good going with the grade 10.9's.

Saul, ST? What say you?

if indeed it's the exact same part number in both locations. then no worries... probably. 8mmx20 really only tells part of the story. it's equally plausible that, instead of using a weak bolt for holding on rotors they're using a really fucking strong bolt to hold on fairings, because at that point it's a parts count game. reducing parts count reduces production cost and inventory, and the cost difference between two essentially garden variety bolts is tiny in comparison

Originally Posted by motobecane10

hell grade 8's are most likely enough so feel good about the 10.9's.

"grade 8" and 10.9 are different and unrelated systems for specifying a bolt. just so happens, they're roughly equivalent.

page 14 and 15 are of interest here

[motobecane10]

Originally Posted by auntiebling

if indeed it's the exact same part number in both locations. then no worries... probably. 8mmx20 really only tells part of the story. it's equally plausible that, instead of using a weak bolt for holding on rotors they're using a really fucking strong bolt to hold on fairings, because at that point it's a parts count game. reducing parts count reduces production cost and inventory, and the cost difference between two essentially garden variety bolts is tiny in comparison



"grade 8" and 10.9 are different and unrelated systems for specifying a bolt. just so happens, they're roughly equivalent.

ummm ok

[Junkie]

Be aware that black oxide coated will rust up pretty quickly if left outside or wet

[JMardy]

Just an update in case someone digs this up in the future. I ended up going with Button Heads:
Metric Blue 10.9 Button Head Socket Cap Screw Class 10.9 Alloy STL, M8 Sz, 20mm L, 1.25mm Pitch
http://www.mcmaster.com/#catalog/118/3133/=hlftcv

I'm will NOT be worrying about these.

[motobecane10]

coolage