What is the correct bolt size ... stumped


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gregattaway
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What is the correct bolt size ... stumped

Post by gregattaway »



2014 Goldwing trike and under the engine there are mounting bolt holes for faring foot brackets ...
They are not 8mm or 10mm so can they be 5/15th ?

thanks ... Do not have a 5/16th to test with so hence the question ...


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Re: What is the correct bolt size ... stumped

Post by WingAdmin »

gregattaway wrote:2014 Goldwing trike and under the engine there are mounting bolt holes for faring foot brackets ...
They are not 8mm or 10mm so can they be 5/15th ?

thanks ... Do not have a 5/16th to test with so hence the question ...
There are no non-metric fasteners on a Goldwing. Keep in mind that it's not just the bolt diameter, but also the thread pitch that must be correct.
gregattaway
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Re: What is the correct bolt size ... stumped

Post by gregattaway »

WingAdmin wrote:
gregattaway wrote:2014 Goldwing trike and under the engine there are mounting bolt holes for faring foot brackets ...
They are not 8mm or 10mm so can they be 5/15th ?

thanks ... Do not have a 5/16th to test with so hence the question ...
There are no non-metric fasteners on a Goldwing. Keep in mind that it's not just the bolt diameter, but also the thread pitch that must be correct.
I was sure it was a MM bolt but 10 is too big and 8 was to small ... it is just weird ... yes i know about the 3 pitches too ...
gregattaway
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Re: What is the correct bolt size ... stumped

Post by gregattaway »

I guess it must be a 10mm ... i need to get back down and be sure on the pitches ...
onegunguitar
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Re: What is the correct bolt size ... stumped

Post by onegunguitar »

Sounds like a 9mm to me.... :D
harvey01
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Re: What is the correct bolt size ... stumped

Post by harvey01 »

Have you found it in the parts manual/fiche? If not actually used on the GL it might be explained under the Valkyrie, or the F6B. But the fiche normally does state the bolt size.
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MikeB
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Re: What is the correct bolt size ... stumped

Post by MikeB »

gregattaway wrote:2014 Goldwing trike and under the engine there are mounting bolt holes for faring foot brackets ...
They are not 8mm or 10mm so can they be 5/15th ?

thanks ... Do not have a 5/16th to test with so hence the question ...
What is a fairing foot bracket? Is it an aftermarket item?
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gregattaway
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Re: What is the correct bolt size ... stumped

Post by gregattaway »

harvey01 wrote:Have you found it in the parts manual/fiche? If not actually used on the GL it might be explained under the Valkyrie, or the F6B. But the fiche normally does state the bolt size.
no manual as it was bought used but I can google ...
gregattaway
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Re: What is the correct bolt size ... stumped

Post by gregattaway »

onegunguitar wrote:Sounds like a 9mm to me.... :D
I have to go to lowes or home depot as the ace here have no 9 mm ...

but I bet that is it !!!
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Re: What is the correct bolt size ... stumped

Post by gregattaway »

MikeB wrote:
gregattaway wrote:2014 Goldwing trike and under the engine there are mounting bolt holes for faring foot brackets ...
They are not 8mm or 10mm so can they be 5/15th ?

thanks ... Do not have a 5/16th to test with so hence the question ...
What is a fairing foot bracket? Is it an aftermarket item?
yes it is for that bracket but the mount is apart of the bike itself ...
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Re: What is the correct bolt size ... stumped

Post by MikeB »

gregattaway wrote:yes it is for that bracket but the mount is apart of the bike itself ...
I have no idea WHAT bracket you are talking about. It is no doubt an add on and it is possible that the bolt has been replaced to accommodate the bracket. I know that with many additions to a Goldwing, bolts get replaced because they are designed to fit the original installation and are too short for the addition. If it IS an aftermarket bolt, the head of the bolt may not be a standard metric size. The normal 8 mm bolt has a 12 mm head. A replacement 8 mm bolt that you get from the hardware store will have a 13 mm head.

Long story short, post a picture of the bolt you are talking about. A picture is worth a thousand words.
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Bob Myers
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Re: What is the correct bolt size ... stumped

Post by Bob Myers »

onegunguitar wrote:Sounds like a 9mm to me.... :D
yep, 9MM, sort of a rare critter but I had to go look for bolts after reading this. I have taps that size but even Mr. Metric nor McMaster-Carr list a 9mm bolt. Good luck!
Oh, a 5/16 is even smaller than an 8mm
8mm-.314
5/16=.312
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Re: What is the correct bolt size ... stumped

Post by MikeB »

Bob Myers wrote:
onegunguitar wrote:Sounds like a 9mm to me.... :D
yep, 9MM, sort of a rare critter but I had to go look for bolts after reading this. I have taps that size but even Mr. Metric nor McMaster-Carr list a 9mm bolt. Good luck!
Oh, a 5/16 is even smaller than an 8mm
8mm-.314
5/16=.312
I'm relatively certain that they are talking about bolt head size, not bolt shank size.

For metric bolts;
A 10 mm headed bolt will normally be a 6 mm bolt.
A 12 mm headed bolt will normally be an 8 mm bolt.
A 17 mm headed bolt will normally be a 10 mm bolt.

For inch bolts;
A 5/16" headed bolt will have be a #10 bolt.
A 7/16" headed bolt will be a 1/4" bolt.
A 1/2" headed bolt will be a 5/15" bolt.

Unless, the metric bolts are purchased from an auto parts or hardware store. Then all bets are off.
MikeB
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harvey01
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Re: What is the correct bolt size ... stumped

Post by harvey01 »

gregattaway, You can access the parts list and diagrams at most any online seller. They will also note if the part is no longer available from Honda. Places to look: Honda Direct line, cyclemax, Wingstuff, bike bandit, and so forth.

You can also go to www.helminc.com to get service manuals, owners manuals, and so forth. These are the factory stuff that Honda sells at a dealership and this is where the dealers get them.
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Bob Myers
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Re: What is the correct bolt size ... stumped

Post by Bob Myers »

gregattaway wrote:2014 Goldwing trike and under the engine there are mounting bolt holes for faring foot brackets ...
They are not 8mm or 10mm so can they be 5/15th ?

thanks ... Do not have a 5/16th to test with so hence the question ...
With some ideas on both given let's see what we are really talking about.
Are you trying to fit a bolt into a threaded hole or a wrench onto a bolt head?
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gregattaway
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Re: What is the correct bolt size ... stumped

Post by gregattaway »

Bob Myers wrote:
gregattaway wrote:2014 Goldwing trike and under the engine there are mounting bolt holes for faring foot brackets ...
They are not 8mm or 10mm so can they be 5/15th ?

thanks ... Do not have a 5/16th to test with so hence the question ...
With some ideas on both given let's see what we are really talking about.
Are you trying to fit a bolt into a threaded hole or a wrench onto a bolt head?
Thread hole ...
gregattaway
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Re: What is the correct bolt size ... stumped

Post by gregattaway »

Sorry everyone but had been forced to be away from the puter ...

I will try to get a pic tonight ...

These are 2 mounts underneath the engine area that the "metal foot brackets" connect to ...

That are not aftermarket as they were put there when that part was cast ...


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