Brass Coupler Question?

WM183 Dec 21, 2019

  1. WM183

    WM183 TrainBoard Member

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    Hi all.

    Just a quickie; does anyone know what size the screws to mount couplers on Samhongsa / Westside tenders are? I need to mount a kadee on the tender and the aux tender of my Q4, and would rather not do any drilling or tapping.

    Thanks much!

    Amanda
     
  2. dalebaker

    dalebaker TrainBoard Member

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    Have you tried the Kadee standard coupler screw? It is a 2-56 screw. It might be a place to start.
     
  3. WM183

    WM183 TrainBoard Member

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    The screws in the tender are quite a bit smaller than the Kadee screws; half the diameter or so! I could drill and tap it for the larger ones I suppose.
     
  4. Nick Lorusso

    Nick Lorusso TrainBoard Member

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    The coupler screws for the kadee # 5 style coupler box are 1.4mm x 4mm long
     
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  5. Mr. Trainiac

    Mr. Trainiac TrainBoard Member

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    As stated earlier, the standard screw is a 2-56. The Kadee boxes with three holes (one regular sized and two smaller ones on each side) use 2-56 in the middle and 0-80 on the sides. 0-48 is the same diameter, but with coarser threads, depending on which one looks right. I would say the 0-80 is what you are looking for if 2-56 is too large.
     
  6. WM183

    WM183 TrainBoard Member

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    0-80! Thats it! Most tenders come with the holes drilled for the coupler boxes with two screws that go in the little ears. I just bit the bullet and drilled and tapped the holes for the 2-56 screws; with the plastic screws, they're easy to cut and hold it in place quite nicely!

    0-80, off to order a box ofthose.
     
  7. fordy744

    fordy744 TrainBoard Member

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    Nick had it right, M1.4 by 4mm. Japan/Korea etc use the Metric system so the screws and fittings are all metric.
     
  8. WM183

    WM183 TrainBoard Member

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    Thanks guys. 1.4 x 4 mm. Should be able to get that from my local industry parts and supply place!
     
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