Legality of unlabelled materials

  1. 2 weeks ago

    Today I went and bought some screws that I needed from a local hardware store (see picture at bottom). By rule R7c it states that

    any commercially available #4, #6, #8, M2, M2.5, M3 or M4 screw up to 2'' long (nominal), and any commercially available nut and/or washer to fit these screws.

    My problem is that the screws I ended up purchasing did not declare itself as any of them. What kind of screw is this, and will I have to switch to a different type?
    1546482568196-1279911484.jpg

  2. Got a Screw Loose

    Jan 3 Ohio 44833B

    Doesn't Vex sell Phillips head screws? Making these identical?

    Either way, these don't provide you with any competitive advantage, whilst also conforming to R7C. These are legal.

  3. creatorthomas

    Jan 3 Royal Center, IN 491

    I believe what you have there is considered a #6 screw. So they are legal. The 32 means threads per inch.

  4. 536Mentor

    Jan 3 Event Partner, V5 Beta Tester Appleton, WI 536

    Actually they did declare themselves the 6 part of the 6-32 means that they are #6 screws. However, #6 screws are for attaching the 393 and 269 motors or the linear gears (rack gears). For everything else, you need 8-32 screws.

  5. Got a Screw Loose

    Jan 3 Ohio 44833B

    @536Mentor Actually they did declare themselves the 6 part of the 6-32 means that they are #6 screws. However, #6 screws are for attaching the 393 and 269 motors or the linear gears (rack gears). For everything else, you need 8-32 screws.

    Good point. I assume the OP bought these with they in mind, but always good to make sure.

 

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