Internal threads are threads inside of a hole in something. Like a nut, for instance. External threads are threads on the outside of a cylindrical object. Like a bolt, for instance. hth, Steve
The tool for cutting internal threads is called a tap. A tool for cutting external threads is called a die.
You need an internal thread chaser to do it. They come in a set with the external thread chaser.
Google the following: "tap and die"
Taps and dies are are tools for cutting threads in metal. A tap is a bolt like tool for making for making female threads ,a die is a nut liked tool for making male threads. They are used for cutting internal and external threads
The hole that you put a screw into is referred to as a "tapped hole". The rib-like things in the hole are called "threads" or, more specifically, "internal threads" as opposed to the external threads on a screw.
No... threads can't be produced by forging..
IPS- Iron Pipe Size (Threaded Pipe) Standard pipe threads. Female IPS is internal pipe threads, male IPS are external pipe threads. Also known as "NPT" or "NPS". CC- Copper Connection (Soldered, aka Sweat Connection)
A thread rolling machine is used to cut external screw threads on round metal bars to take the internal screw thread of a nut (as in a nut and bolt).
Ask dell -__-
with a pair of scissors
A. a die