Metric screw bolt and nut measuring tool
thingiverse
Remade everything from scratch using the original concept. Incorporated ISO standard dimensions and expanded it to make it longer, added more thread sizes, and included a simple ruler on one side. Additionally, I added nut sizes at the bottom that match the included thread sizes. Update: Created two new versions (labeled as V2 in the file name) based on suggestions from smh. The scale of the side ruler is now linked with the number labels on the top surface for improved readability. One file features loose bottom nut holes so the nut size can be compared, while the other has nut holes designed for a press fit to compare bolt threads (in case you encounter ISO and SAE bolts).
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