Summary Same as the others, this covers 10, 10.2, 10.4, 10.6 yadda yadda yadda...up to 12 mm. Design stuff that fits hardware you got laying around. See pic for results. A snug fitting nut and a dab of crazy glue or epoxy add a whole level of possibilities to your designs. You can even heat them up and push them into a tight spot for a glue free connection. Plastic home made parts with metal threads. Wheee!!! This one takes a little longer to print. When you print it out it's about 134 mm long. Shoppers drug mart "get" brand glue stick on glass if you're curious. This test fit stick and the other three I posted will let you figure out what the perfect hole is for hex nuts from M2 thread all the way to M8 bolts and threaded rod.