Another muffler post

[TheWood]

Hi Bueller community, been a while since I've posted last. I'm currently removing the stock muffler on my 06'XB12X due to the old issue of the sidestand mount bolts shearing off, and have a couple of questions. PO must have upgraded the stand because it has the pivot pin w/ the circlip, as well as a (3)bolt hole mounting plate, even though I only have the 2 holes to secure it to. I haven't extracted the broken bolts out of case yet, but want to confirm what flange bolts to buy. I know they're 5/16" diameter. Are they 5/16"-18 x1-1/4" full thread coarse? I'm finding them in zinc plated grade 8(serrated under flange), but the flange diameter of the new ones I've found are only 11/16", compared to 13/16" on the OEM flange. That's 1/8" of slop in the recessed area of the mounting bracket for the flange to reside in. Will that be o.k., or does anyone know where I can get a grade 8 with the proper 13/16" diameter flange?

I see on the sites that I'm looking on that I can get the proper flange diameter if I go with 3/8" diameter bolts, but would rather not go through the drilling/tapping upgrade unless necessary. I'm thinking that the OEM 5/16"bolts lasted all these years(probably grade 5) so upgrading to grade 8, checking & keeping them tight should do it; but would prefer the proper flange diameter. Too bad I can't use that 3rd hole in my upgraded sidestand.
While the muffler is off, Im going to prep and paint it. I know it'll be heat paint, but what to use; Flat or Satin? Mine's old and faded(like me)and don't know what the stock sheen was, or what is preferred by most? I'm thinking Satin? Sorry about the novel here.

[Barrett]

Bob: The correct side stand mounting plate bolt size for all post 2004 XB's is:
5/16th inch diameter....18 pitch tooth count....1-1/4 inch length......flange head.
Added to microfiche description is Grade 8 with 2510N patch. NO idea what the 25110N patch designates. Perhaps details unique to the flange end?????

Factory part # was CA0016.02A8---suffix B1H. Multiples still listed available thru H-D dealer system, if you want to go that route.
They used to be shipped in packs of 5 as this bolt is used in other applications such as shifter assembly and a few others I can't immediately recall.

The original muffler finish was hi-temp satin black.

[BuellyBagger]

I used vht flame proof spray paint on a couple mufflers. I think I used satin or semi gloss. Flat is was too dull in my opinion. Either way that paint layed out nice and held up well.

[TheWood]

Thank you both for the reply. If that factory bolt part(H-D)mentioned was in fact upgraded to a Grade 8, I don't mind spending a few more bucks to get that proper flange diameter(13/16"). Thanks again.