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I’m looking to make some of these bolts for my project. Would anyone be willing to post a pic of one of these on a ruler to show dimensions?
I would be forever grateful!


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I've got some for 70s CB450 DOHC.. not sure if they are interchangeable from model or years
 

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I need to look but I believe from CB450 K5 to K6 Honda went from two different sizes to both being the same size.

According to the parts fiche, the 1972 CL450K5 used the same part number bolts on both sides, the same as my K6. I'll try to get pics and measurements tonight.
 

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That's curious, Jim, as my parts list (which only covers K3-K5) shows the left and right part numbers as different for all three models; left is 90110-292-010, right is 90112-292-000.
 

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Image-2.jpg

The threads are M6 X 1.0 for the bolt and nut side.
overall length is 108.22mm for the long bolt and 103.12 for the short bolt
bolt length is 83mm for both
nut length is 19.2mm for the long and 14mm for the short bolt.
nut is 12mm hex
nut standoff is 9mm diameter X 6mm length

let me know if you need any more info.
 

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So, the tin is ~5mm farther from the filter on whichever side has the longer hex head. Now, which side is that?
 

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Short left, long right
 
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