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Thread: Modification - M10 thread ?

  1. #1
    Junior Member CoffeeSydney's Avatar
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    Modification - M10 thread ?

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Hoping I can get some advice from you experts out there..

    I've got these portafilter s/s handle I adore using.. They're equipped with M12 (12mm) thread screw.

    I'd like to change them to a M10 (10mm) screw to accommodate a San Marco group head Portafilter.

    Can I simply pull out the current M12 screw and insert a 10mm?

    Appreciate your help
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  2. #2
    Life-long Learner DesigningByCoffee's Avatar
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    Can't see why not - but you'd need to get a stud machined to fit into the handle correctly. The other alternative is to re-tap the p/f (re-drill out to 10.5mm?) and tap to M12 - if the handle is the favorite then sacrifice the group instead?
    Cheers Matt

  3. #3
    Junior Member CoffeeSydney's Avatar
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    Thanks Matt-
    So what your saying is - it may be possible to just buy a complete San Marco 55mm sized portafilter/handle unit, and have the handle removed, then insert the stainless steel handles into the head basket unit?

    I thiught the the generic San Marco portafilters wee all M10 size.. Apologies for my lack of knowledge.. Novice ��

  4. #4
    Senior Member chokkidog's Avatar
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    You can buy the p/f with no handle.

    Coffee Parts | San Marco Spare Parts - Portafilters and Filter Baskets

    You will want to contact Coffee Parts to find out if there is enough on the p/f to tap out to 12mm.

  5. #5
    Junior Member CoffeeSydney's Avatar
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    Thanks everyone.. I'll sought it out and track down a portafilter hopefully without any mods tone screw mechanism

  6. #6
    Life-long Learner DesigningByCoffee's Avatar
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    Behmor Brazen - $249 - Free Freight
    Quote Originally Posted by CoffeeSydney View Post
    I thiught the the generic San Marco portafilters wee all M10 size.. Apologies for my lack of knowledge.. Novice ��
    Hi CS
    They will probably all be M10 - but there maybe enough room and material there to tap it out to the larger M12 size rather than ruin your special handle
    And you don't ever need to apologise for having valid questions - learning is a lifelong journey for us all!

    Happy hunting
    Matt



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