From fasteners to leadscrews, threads are one of the most common mechanical elements. But how exactly are threads made? Here's an overview of the key threading methods used in machining.
Thread Cutting
Thread cutting is the most direct method of creating external and internal threads. On lathes, the workpiece rotates as a cutting tool moves parallel to the axis of rotation to cut the thread...
Italiano 
English
Arabic
French
Spanish
Portuguese
Deutsch
Turkish
Dutch
Russian
Romaian
Portuguese (Brazil)
Greek