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Seat Post Bolt Sizes

Old 06-01-13, 06:24 PM
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CanadianBiker32
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Seat Post Bolt Sizes

I know this is odd question . Need to get a supply of bolts for seat post. I am talking about the top part where your bolt the saddle to the seat post.
I need the longer ones that the seat posts just use the single bolt.
I need to make an online order, but need to know the proper sizes of bolts to use. To Get.

Thanks
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Old 06-01-13, 06:53 PM
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chucky
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Probably best if you measure it to make sure you're getting the right size (because I wouldn't guarantee that every seat post clamp ever manufactured in the history of mankind has used the same size bolt).

Should be standard metric size "M" something (diameter in mm) with the standard thread density for that diameter (which you can also double check by counting the threads in 10mm then divide by 10).
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Old 06-01-13, 07:42 PM
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ok look at this seat post
https://www.ebay.com/itm/Excel-Seatpo...item2a2aabb0f1

For this type of seat post your estimate of the size of bolt i would need to secure the seat.
thanks
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Old 06-01-13, 08:14 PM
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fietsbob
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I am talking about the top part where your bolt the saddle to the seat post.
Its a Part of that particular seat post do you have that post, in Hand? TAKE THE BOLT
down to where they sell bolts for Trucks and car repairs , Auto Parts.
there they will help you figure out the thread pitch and the diameter , and maybe even have a suitable bolt
of the,, Allen head cap type Machine screw , Metric..

wild shot in the dark its 8mm but no way can I guess length..

can you Measure things?
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Old 06-01-13, 08:27 PM
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Originally Posted by fietsbob View Post
Its a Part of that particular seat post do you have that post, in Hand? TAKE THE BOLT
down to where they sell bolts for Trucks and car repairs , Auto Parts.
Heh I guess that would work in Canada ...around here auto/car/truck stores look at me like I have 10 heads if I ask for anything metric as do the mom and pop hardware stores...only store around here that would carry a metric bolt like that around here are faceless corporate hardware stores and bike shops (and it's only a maybe on the bike shops).
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Old 06-01-13, 10:26 PM
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Originally Posted by chucky View Post
Heh I guess that would work in Canada ...around here auto/car/truck stores look at me like I have 10 heads if I ask for anything metric...
Unless I'm mistaken, American car makers have used metric fasteners extensively for at least a decade or so. Even if they didn't, there are an awful lot of Asian and European cars on the road in the U.S. Any decent auto parts store should have metric nuts and bolts.
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Old 06-01-13, 10:34 PM
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Any decent hardware store (Ace, for example, in the US) will sell metric cap and hex bolts/screws and have a thread board.
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