Nut fit test sticks.

youmagine

Print these out and assess the required hole size to accommodate a steel nut in your design. Metal threads embedded in plastic are sheer lunacy! Each stick covers 2 mm with .2 mm increments. For instance, the 10 mm to 12 mm stick comprises 10, 10.2, 10.4, 10.6, 10.8, 11, 11.2, 11.4, 11.6, 11.8, and 12 mm diameters within its range. This provides sufficient data to determine a loose fit, snug fit, or force fit for any object you can jam into the hole. Notate the range on it with a marker. Nut traps introduce an exciting dimension to your designs. Explore my other designs to see how trapped nuts facilitate innovative applications.