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Thread: Source needed for Allen head carburetor top retaining screw

  1. #1
    Airhead
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    Source needed for Allen head carburetor top retaining screw


    I installed these stainless, Allen head carb top retaining screws on my R90/6 decades ago, and forget where I bought them.

    I need to replace one, and do not want to revert to the stock Philips head ones.

    Does anyone have a source for these, please? It's circled in red:

  2. #2
    Liaison 20774's Avatar
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    Bing seems to have them...but looks like they sell kits w/ 8 screws for both carbs:

    http://bingcarburetor.com/store/p83/...SCREW_KIT.html

    Call them and see if they have any ideas for one or two.
    Kurt -- Forum Liaison ---> Resources and Links Thread <---
    '78 R100/7 & '69 R69S & '52 R25/2
    mine-ineye-deatheah-pielayah-jooa-kalayus. oolah-minane-hay-meeriah-kal-oyus-algay-a-thaykin', buddy!

  3. #3
    Airhead
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    Thank you, Kurt. That is greatly appreciated.

    I contacted Bing and they do sell individual screws #40-573 @ $4.61 each.

    At that price I'm glad I'm not building the Space Shuttle, but it beats wasting money on four or eight.

  4. #4
    Registered User kioolt's Avatar
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    I look at McMaster Carr (www.mcmaster.com) for a lot of stuff. When you go to the web page don't just look at the picture for the main category. Look at the name of the main category. You can drill down from there to find a lot of variations in the category. I don't know what size screw it is but for instance McMaster has M3 by 10 for $5.91 for 100.
    2004 R1150RT 186,800 miles , 1991 K100LT 128,700 miles, 1982 R100RT 106,900 miles
    Total 422,400 BMW miles
    AMA,BMWRA,BMWMOA
    The cheapest thing on a BMW is the nut that connects the handlebars to the seat.

  5. #5
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    go to belmetric.com. Look under Allen Head Fasteners. They have countersunk flat head in stainless in many sizes for less than 20c each.
    The head is flat instead of domed. Remember when you measure these type of screws the nominal size is the total length.

  6. #6
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    What about your favorite hardware store? My local Ace hardware has a great selection of metric fasteners, in different head configurations, oval, flat, allen type, philips, button head, etc. Just my 2.

  7. #7
    As long as you have another part to measure, mcmaster.com usually has what you need. The down side is you have to get 50 of that small a screw. The up side is it will cost about as much as one from Bing.
    '61 Clubman's Gold Star, '13 690 Duke, '13 Daytona 675R, '17 1290 GT, '18 Street Triple RS (gone but not forgotten: '76 R75/6, '84 R100, '76 R90S)

  8. #8
    Registered User lkchris's Avatar
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    It will be great if somebody eventually offers TORX head screws for this application.
    Kent Christensen
    21482
    '12 R1200RT, '02 R1100S, '84 R80G/S

  9. #9
    Registered User kioolt's Avatar
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    Try mcmaster.com for torx head screws. They have just about everything you need when it comes to fasteners.
    2004 R1150RT 186,800 miles , 1991 K100LT 128,700 miles, 1982 R100RT 106,900 miles
    Total 422,400 BMW miles
    AMA,BMWRA,BMWMOA
    The cheapest thing on a BMW is the nut that connects the handlebars to the seat.

  10. #10
    Quote Originally Posted by kioolt View Post
    Try mcmaster.com for torx head screws. They have just about everything you need when it comes to fasteners.
    Usually in boxes of 50 or 100.
    Paul Glaves - "Big Bend", Texas U.S.A
    "The greatest challenge to any thinker is stating the problem in a way that will allow a solution." - Bertrand Russell
    http://web.bigbend.net/~glaves/

  11. #11
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    Screws

    Quote Originally Posted by PGlaves View Post
    Usually in boxes of 50 or 100.
    Then you could share them...

  12. #12
    Registered User kioolt's Avatar
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    Quote Originally Posted by PGlaves View Post
    Usually in boxes of 50 or 100.

    That's true sometimes, but you'll still pay less for 50 then you will for 5 from BMW.
    2004 R1150RT 186,800 miles , 1991 K100LT 128,700 miles, 1982 R100RT 106,900 miles
    Total 422,400 BMW miles
    AMA,BMWRA,BMWMOA
    The cheapest thing on a BMW is the nut that connects the handlebars to the seat.

  13. #13
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    Boltdepot.com will sell a wide variety of fasteners and you can buy 10 at a time if you want. I generally keep adding to an order until I use up the minimum shipping charge.

  14. #14
    Registered User ebeeby's Avatar
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    Quote Originally Posted by lgb View Post
    Then you could share them...
    +1
    1973 R75/5

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