Thread Dies Chart. Ansi/ asme internal screw thread size chart. Reducing the size of a rod you want to thread with a die makes it easier to start the die, but the real secret is to add a 30° chamfer to the end of the rod.
Ansi/ asme internal screw thread size chart. For instance, when a screw or bolt measures 5.9mm, it is called a 6mm thread. Spend up to $99 and get a 5% discount.