Gran variedad de tuercas y tornillos, birlos de rueda, taquetes para anclaje y fijación, varillas roscadas y pijas, etc.
Chasing Threads Tap and Die
How to fix a stripped bolt
Taps and dies are tools used to create screw threads, which is called threading. Many are cutting tools; others are forming tools. A tap is used to cut or form the female portion of the mating pair (e.g., a nut). A die is used to cut or form the male portion of the mating pair (e.g., a bolt).