self-drilling zip screws for leader extensions

Discussion in 'Roofing and Siding' started by D725A, Sep 26, 2010.

  1. Sep 26, 2010 #1

    D725A

    D725A

    D725A

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    I had a few left over white hex 8 x 1/2" self-tapping screws from the new aluminum gutter install but I needed a few more. I have been to home depot and several big hardware stores but can only find them online. (See attached photo)

    There are apparently various types of self-tapping screws, but from I gather I shouldn't be using the ones that have that special look at the point. The ones in the photo have very sharp edges and were very easy to install.

    My leaders are aluminum and I assume the screws should be aluminum too, though they seem to be hard to find. One store sold me some stainless steel phillips head 8x 1/2" as a backup but don't know about the interaction between aluminum and stainless steel. Any thoughts?

    aluminum zip screws.jpg
     
  2. Sep 26, 2010 #2

    oldognewtrick

    oldognewtrick

    oldognewtrick

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    You shouldn't have a reaction between aluminum and stainless. Problems occur when you have copper and aluminum together. If you are trying to find the screws they used for your gutters look in the phone book and find a gutter or siding supply house. They will have different colors to match your application.
     
  3. Sep 26, 2010 #3

    kok328

    kok328

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    You could also check with your local roofing supplier but, expect to have to buy them in a minimum quantity box (100ct.).
     
  4. Sep 27, 2010 #4

    handyguys

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    The stainless should be fine altho more expensive than what you need.
     
  5. Dec 10, 2010 #5

    screwlady

    screwlady

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  6. Dec 10, 2010 #6

    D725A

    D725A

    D725A

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    Thanks MaryLouise, but can I just buy 100? I'm only a homeowner don't need quantity. That would be part #10006 8 x 1/2" white indented hex washer head slotted needlepoint screws. If you don't sell direct, please give me some stores that carry them either near zip code 10520 or new york city. Thanks.
     

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