Should every bolt be greased to ensure proper torque? - Page 2
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  1. #26
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    In the words of the late, great poet Frank Zappa, keep it greasy so it'll go down easy.

  2. #27
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    Grease doesn't ensure proper torque. But it might help with corrosion resistance and galling, but the fastener should have a coating like zinc on it anyway.
    Most fastener suppliers sell screws without any lubricant on them. I seemed to think this might be because of loosening and reduced torque?

    https://www.engineeringtoolbox.com/t...ts-d_1693.html

  3. #28
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    Quote Originally Posted by Matt.T View Post
    Most fastener suppliers sell screws without any lubricant on them. I seemed to think this might be because of loosening and reduced torque?
    I don't know of any fastener supplier who supplies screws with a lubricant.
    1) It would make a complete mess in packaging. All the screws would stick together and be a greasy mess. Screws are shipped in bulk in cardboard boxes, which would soak up and be destroyed by the grease.
    2) No single lubricant fits all applications. No one is going to want screws with a grease that may be incompatible with their application.
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  4. #29
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    Quote Originally Posted by tlg View Post
    I don't know of any fastener supplier who supplies screws with a lubricant.
    1) It would make a complete mess in packaging. All the screws would stick together and be a greasy mess. Screws are shipped in bulk in cardboard boxes, which would soak up and be destroyed by the grease.
    2) No single lubricant fits all applications. No one is going to want screws with a grease that may be incompatible with their application.
    ^This^
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  5. #30
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    Quote Originally Posted by cxwrench View Post
    ^This^
    Fwiw, there are some screws that are sold "pre-lubricated" ("anti-friction coated," in trade parlance; usually a dry graphite-, molybdenum disulphide, or PTFE-based coating).

    I have no idea whether any of these make their way to bicycles.
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  6. #31
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    Quote Originally Posted by xxl View Post
    Fwiw, there are some screws that are sold "pre-lubricated" ("anti-friction coated," in trade parlance; usually a dry graphite-, molybdenum disulphide, or PTFE-based coating).

    I have no idea whether any of these make their way to bicycles.
    Never seen anything like that. Many have a bit of blue loctite applied but the industry standard is generally based on fasteners being lubricated.
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  7. #32
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    The only "bike" bolts I've ever seen come pre-treated, come from OEM's (i.e. Shimano, TRP, etc...) who have added a dab of thread locker to something important like a brake mount bolt, chainring bolts etc...

  8. #33
    tlg
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    Quote Originally Posted by xxl View Post
    Fwiw, there are some screws that are sold "pre-lubricated" ("anti-friction coated," in trade parlance; usually a dry graphite-, molybdenum disulphide, or PTFE-based coating).

    I have no idea whether any of these make their way to bicycles.
    I've never seen something like that "sold" anywhere. It's typically a special application / custom product for an OEM.

    https://www.ndindustries.com/product...nd-anti-seize/
    HOW IT WORKS
    Customer parts sent to ND Industries undergo our ND Anti-Seize pre-application process whereby dry film lubricants are coated onto fasteners and assemblies in bulk. Our custom formulated materials are dried, then the completed fasteners are packaged and returned to the customer.
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  9. #34
    xxl
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    Quote Originally Posted by tlg View Post
    I've never seen something like that "sold" anywhere. It's typically a special application / custom product for an OEM.

    https://www.ndindustries.com/product...nd-anti-seize/
    HOW IT WORKS
    Customer parts sent to ND Industries undergo our ND Anti-Seize pre-application process whereby dry film lubricants are coated onto fasteners and assemblies in bulk. Our custom formulated materials are dried, then the completed fasteners are packaged and returned to the customer.
    Firms such as ND will apply coatings to fasteners supplied by OEMs (so they're selling a service), but there are also firms that will sell coated fasteners (e.g., https://torqbolt.com/manufacturers/fasteners/screw/

    As I said, I've no idea whether any of these make their way to bicycle stuff, but they do exist.
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  10. #35
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    Quote Originally Posted by xxl View Post
    Firms such as ND will apply coatings to fasteners supplied by OEMs (so they're selling a service), but there are also firms that will sell coated fasteners (e.g., https://torqbolt.com/manufacturers/fasteners/screw/

    As I said, I've no idea whether any of these make their way to bicycle stuff, but they do exist.
    They seam to be for extremely high load and high heat applications. Not bike stuff.

  11. #36
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    Quote Originally Posted by 202cycle View Post
    They seam to be for extremely high load and high heat applications. Not bike stuff.
    So, kinda like ceramic bearings, huh?
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    "Oh my god. This is terrible. This is the end of my presidency. Im fd.

  12. #37
    tlg
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    Quote Originally Posted by xxl View Post
    So, kinda like ceramic bearings, huh?
    Hahahahaha
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  13. #38
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    Quote Originally Posted by xxl View Post
    So, kinda like ceramic bearings, huh?
    I work for some bike racers
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    and a bunch of skateboards

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