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Bolt size help

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Old Oct 23, 2020 | 11:23 AM
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Default Bolt size help

Hey there,

Doing some work on my new to me 2013 Ultra, and found it’s missing a bolt. Fuse block under the left side cover, can anyone tell me the bolt size? Thanks!!
 
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Old Oct 23, 2020 | 11:55 AM
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5/16x8 self tapping. #3634 if I'm reading it right

from a 2012 parts manual






 
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Old Oct 23, 2020 | 12:25 PM
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Originally Posted by Vernal
5/16x8 self tapping. #3634 if I'm reading it right

from a 2012 parts manual






Thanks! Doesn’t sound right being a self tapping screw...? And it looks much bigger than 5/16
 
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Old Oct 23, 2020 | 01:10 PM
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Can you remove the bolt in #1 of the drawing and see if it fits the hole left by the missing one?
 
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Old Oct 23, 2020 | 01:25 PM
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Originally Posted by FlyByWire
Thanks! Doesn’t sound right being a self tapping screw...? And it looks much bigger than 5/16
5/16" is the bolt diameter. The distance across the flats is likely 1/2".

 
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Old Oct 23, 2020 | 07:13 PM
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A 5/16-18 x 1-inch long bolt should work. The threads should already be there.
 
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