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  1. balloon

    Flush Mounted Threaded Through Hole on PCB

    Hello! Does anyone know the name of this component of the top of their heads? I'm working on designing a product that requires 2-56 threaded holes in a PCB, and I need it to be as flush to the surface of the board as possible due to physical size constraints. The component in the photo looks...
  2. balloon

    Spanner Head Hole Dimensions?

    Hello! I am designing a fastener that I'd like to use a #4 spanner head screw drive on, but cannot find any documentation around what diameter to make the holes. I found this document from Fastenal that lists all the dimensions and tolerances I need except for the diameter...
  3. balloon

    High-Strength NSF-61 Certified Plastics?

    Hello! I am designing a product that is inserted into potable water applications. I am looking for a high strength (~16 ksi yield strength, 1000 ksi elastic modulus) plastic that is NSF-61 certified. I have tried Delrin 150 NC010 (10 ksi yield strength, 420 ksi elastic modulus), but it ended...

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