Metric screw bolt and nut measuring tool M1.6/2/2.5/3/3.5/4/5
thingiverse
Modeled again from scratch with smaller metric screw sizes :) M1.6 / M2 / M2.5 / M3 / M3.5 / M4 / M5 You can insert nuts for all these sizes with press fit on the bottom (I didn't have 1.6 and 3.5 in stock) and use the shallow pits to measure nuts.
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