Tuercas, calibrador, pulgadas.

 https://www.areatecnologia.com/herramientas/tuercas-y-tornillos.html

https://mansiondelabelleza.com/wp-content/uploads/2022/01/CALIBRE_PARTES.jpg

https://i.ytimg.com/vi/jAvVebf0yP4/maxresdefault.jpg?sqp=-oaymwEmCIAKENAF8quKqQMa8AEB-AH-CYAC0AWKAgwIABABGH8gUigYMA8=&rs=AOn4CLBmR4xjoTefrIuW0hU6lPSBsE78ng