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Thomson
Seatpost Bolt/Nut/Washer

Mfg PartNum:SP-H001
$4.95set
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Replace your worn seatpost hardware with Thomson's Nut/Bolt/Washer assembly. For use with Elite and Masterpiece seatpost models. This set includes one bolt, one washer and one nut. Two sets are used per seatpost.

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

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Is this using a 3mm or 4mm hex bolt?
by tv-vt
Cycling Enthusiast
vermont

Trying to get a little more info on this - can someone tell me if the bolt takes a 3mm or 4mm hexallen key? Don't want it if it's 3mm, likelihood of it stripping seems higher. Thanks.

Reviewed 3/17/2020
TriSports.com Comments
Thomson does not use 3mm bolts in their seatposts, this will be a 4mm bolt.
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If you have a Thomson seat post, It's probably a good idea to have one handy...
by Road4Track
Competitive Racer
Seattle, WA
1 of 3 customers found this review helpful.

I've never had a Thomson bolt go bad, but everything has a failure point. I have one for just such a situation, as this will happen when you least expect it. I try to remember to put one in my saddle bag for long or out-of-state rides... just in case. Otherwise, it's in the tool box.

Reviewed 3/13/2013
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