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Thread: Be cautious with optics screws

  1. #11
    Quote Originally Posted by GJM View Post

    Long term, I wish the industry could standardize on a footprint like the Acro, and direct mill slides,
    They'll probably get to that right after they standardize iron sight dovetails.

  2. #12
    Site Supporter OlongJohnson's Avatar
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    Quote Originally Posted by NickDrak View Post
    Any idea on the manufacturer of the screws? Lots of Taiwan (YFS) screws out there in the pistol mounted optics universe.
    In the world of gun hardware, YFS is an upgrade to a great number of parts.
    .
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    Not another dime.

  3. #13
    Site Supporter Erick Gelhaus's Avatar
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    Found this out the hard way with a T-1 - when going from from a LaRue mount and (yet again) re-using the screws to attach it to the stock, no elevation mount. Still need to get it to a machinist.

  4. #14
    Site Supporter NickDrak's Avatar
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    Quote Originally Posted by OlongJohnson View Post
    In the world of gun hardware, YFS is an upgrade to a great number of parts.
    Direct (US made) replacement hardware can be sourced directly from McMaster-Carr for most applications.

  5. #15
    Site Supporter OlongJohnson's Avatar
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    McMaster doesn't list country of origin on the site, generally.

    I just looked at the last order I have from them, still sitting on my work bench. Origin is marked on the boxes. SAE sizes are from US, except for a bag of washers that's "CN" (probably not Canada), and metric sizes are from TW. The coating on the TW screws is cleaner and more uniform, generally.

    So it appears McMaster sources hardware from wherever seems best to them, just like Fabory or any other quality distributor.

    H-K makes me happy, but I don't worry about a YFS mark.
    .
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    Not another dime.

  6. #16
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    I don't care much about country of origin as long as I can get a cert and the country is on the DFARS list.

  7. #17
    McMaster Carr is your friend. You can buy a box of high strength alloy or SST screws of your liking for around $20 a box of 25. Thats 12 battery changes. Re-using teeny screws that are torqued and beat on by a reciprocating slide isn't saving you that much $$.

  8. #18
    Agreed, can you specify torx over allen heads?

  9. #19
    DP Pro just came loose on a Shadow 2 slide, direct milled by Primary. Screw broke.

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    Likes pretty much everything in every caliber.

  10. #20
    Site Supporter OlongJohnson's Avatar
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    .
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