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  1. #1
    Banned. red house's Avatar
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    Where do I get those little pinch bolts for the shimano hollowtech cranks?

    Hi, you know those two little bolts that allow the left (non-drive side) crank arm to clamp down and secure itself onto the spindle of Shimano hollowtech II cranks? Where would I be able to find these? I stripped and rounded out the heads while putting them back together. My pops only had 'english' allen wrench keys for his torque wrench - which was all I had to use for reassembling the cranks.. d'oh.

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    Elitist Troglodyte DMF's Avatar
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    Better not to use them, huh? I mean, you could have figured that out before you took it apart. Then you wouldn't be buying bolts.

    Try your LBS. And read my sig.
    Stupidity got us into this mess - why can't it get us out?

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    Banned. red house's Avatar
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    Quote Originally Posted by DMF
    Better not to use them, huh? I mean, you could have figured that out before you took it apart. Then you wouldn't be buying bolts.

    Try your LBS. And read my sig.

    I tried all of the LBS'sesez. That's three bike shops - who are all pledging to order the parts for me.. but in the mean time I will have to give up riding my road bike because of two lousy generic looking bolts?? no, no, no.. no. And, btw; ''better not to use.. -what exactly '' ? You crazy -?
    Last edited by red house; 05-25-07 at 03:24 PM.

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    Elitist Troglodyte DMF's Avatar
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    Better not to have used the English allen wrenches at all (i.e. disassembly) than to have stripped the bolts. Or if you had metrics for disassembly, you shouldn't have used the others for assembly, even if it meant not torquing the things at all. (Here is a case where "feel" beats torque wrench.)

    Go down to the store and buy some metric allen wrenches. Pound them into the bolt heads with a hammer and hand-tighten the best you can. Then go riding.
    Stupidity got us into this mess - why can't it get us out?

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    Banned. red house's Avatar
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    Quote Originally Posted by DMF
    Better not to have used the English allen wrenches at all (i.e. disassembly) than to have stripped the bolts. Or if you had metrics for disassembly, you shouldn't have used the others for assembly, even if it meant not torquing the things at all. (Here is a case where "feel" beats torque wrench.)

    Go down to the store and buy some metric allen wrenches. Pound them into the bolt heads with a hammer and hand-tighten the best you can. Then go riding.


    Hey Mr. Man, I don't need any metric tools.. I need those bolts that hold my crankarm on. Kapeeshi?

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    Just go down to the hardware store and buy the bolts and a set of metric allen wrenches

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    Banned. red house's Avatar
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    Quote Originally Posted by silent1
    Just go down to the hardware store and buy the bolts and a set of metric allen wrenches

    Okay.. ppl, I have a set of metric allen wrenches. It is my dad who only had english bits for his torque wrench. Let's just clear that up - and pls let us never speak of me buying metric allen wrenches again. Btw, I do not know if they would sell these little bolts at a hardware store? does anyone believe so?

  8. #8
    Senior Member oldokie's Avatar
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    Shimano web site shows those bolts to be M6 x 19. Most good hardware stores should have them.
    Inside every old person is a young person wondering what happened.

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    Banned. red house's Avatar
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    Quote Originally Posted by oldokie
    Shimano web site shows those bolts to be M6 x 19. Most good hardware stores should have them.


    Yes, you mean M6 x 15 ? Thanks, this revelation if true will alone make my life worth living atleast another day.


    http://techdocs.shimano.com/media/te...9830608870.pdf

  10. #10
    Since 1938... JunkYardBike's Avatar
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    But, you know, it's always good to have a second set of metric allen wrenches...to throw at the heads of didactic BFers.

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    Yes they sell the bolts at any decent hardware store. While you are there you should buy your dad a set of metric bits for his torque wrench.

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    The stock bolts are M6x1.0 and 19 mm long (not 15). However, any decent hardware or home supply store will have M6x1.0 bolts 20 mm long and these work just as well. My son-in-law damged the head on his Hollowtech II crank pinch bolt and a 20 mm replacement bolt was a perfect fit.

  13. #13
    Elitist Troglodyte DMF's Avatar
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    Quote Originally Posted by red house
    Hey Mr. Man, I don't need any metric tools.. I need those bolts that hold my crankarm on. Kapeeshi?
    And how do you plan to put the new bolts on without stripping them out, too? Oh! You actually have some! You might have said that earlier.

    The stock bolts are M6x1.0...
    Good point. Take the old bolt with you to be sure the thread pitch matches.
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  14. #14
    Senior Member oldokie's Avatar
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    Apparently the bolt length varies by model of crank set. I looked at one that said M6x19 but I see that the one you quoted shows M6x15. Take your old one and get a length match.
    While you are at it, pick up some spares in case your pops gets his hands on your bike again.
    Inside every old person is a young person wondering what happened.

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  15. #15
    Banned. red house's Avatar
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    Thanks everybody for your input and helpful advice. The good news is that I found local bike and hardware shops that sell M6X15 bolts.. the bad news is that the head of these bolts are all slightly too big to fit (they are a little bigger in diameter than the head of the stripped out bolts).. so I guess I'm ''screwed'' .. 300 dollar cranks are now crap becz of a couple of insignificant looking screws. My LBS tells me *hopefully* they will be able to order replacements from shimano in about ten days or so.. yeah.

  16. #16
    Senior Member Bill Kapaun's Avatar
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    Chuck the bolt in a drill and turn the head down with a file.

  17. #17
    Banned. red house's Avatar
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    Quote Originally Posted by Bill Kapaun
    Chuck the bolt in a drill and turn the head down with a file.


    Brilliant. ..And here I was thinking that I had to buy a lathe. !

  18. #18
    Senior Member Nessism's Avatar
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    If you have a dremel tool you can use a cut-off wheel and cut a crosswise slot across the head of your old screws and then reuse them by tightening with a screwdriver. Should hold until your LBS can get the proper screws for you.
    Becareful buying/selling bike parts on-line. I learned the hard way. :(

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  19. #19
    cup
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    Good point. Take the old bolt with you to be sure the thread pitch matches.[/QUOTE]




    A 6 mm bolt should only be available in 1.0 or coarse thread. Only 8mm and larger metric bolts available in both coarse and fine thread.

  20. #20
    Banned. red house's Avatar
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    Cordless drill = $29.97

    Small flat file = $3.49





    ...not having to wait for Shimano to send these two simple yet impossibly hard to find parts = $33.46 (+ tax).

  21. #21
    Banned. red house's Avatar
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    oh.. yeah, I have to wait for the drill to charge overnite.. But I'll be sure let everybody know if I can make this work for me. Again, thankyou all for your ideas and advice, you can't put a price on this kind of helpfullness.

  22. #22
    Senior Member Bill Kapaun's Avatar
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    $.08

  23. #23
    Elitist Troglodyte DMF's Avatar
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    Quote Originally Posted by red house
    ...not having to wait for Shimano to send these two simple yet impossibly hard to find parts = $33.46 (+ tax).
    Wow!

    And I thought $12 for a wheel stud was high!
    Stupidity got us into this mess - why can't it get us out?

    - Will Rogers

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