These are Disc 40mm,38mm width and 5mm high Aprox Domed. These are solid Copper. They are old Stock. They are hard to find today, these are pretty much a half sphere. . The way I use these is to drill a hole in the middle. Then these can be used as beadcaps. 2. I Solder these onto my project. And I have perfect bumps on it! well they stay just where I put them. You can solder two of these together for a sphere. Anyway you get 2 of these Domed Discs.
R-040, (Conical Disc.2) Type of Metal- Copper, Brass, Bronze, Grade of Metal- 1st Grade, Gauge of Metal- 22 Gauge, Measurement- 38mm, Tall 5mm, Quantity- 2,
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