The M6 ​​nut joining system is a piece whose function is to serve as a support for the M6 ​​nuts, which generally have a standard measurement of minimum 5.7 mm and maximum 5.95 mm. This piece has length measurements of 10 mm x Ø 10 mm and is recessed acting as a plug or dowel. The material with which this joining system has been made is highly resistant transparent plastic. Its design has grooves on the outside for better grip. Its packaging contains 2,500 units.

Un ecrou est compatible avec un boulon ou une tige filetee, lorsque le filet interne de l'ecrou et celui du boulon ou de la tige filetee coincident.Par exemple, si nous choisissons un boulon ou une tige a filetage metrique 6 (M6), le filetage metrique interne de l'ecrou devra etre aussi 6 (M6).

Pour savoir si un ecrou et un verin sont compatibles, le filet interne de l'ecrou et du verin doivent coincider.Par exemple, si nous choisissons un verin a filetage metrique 4 (M4), alors le filetage metrique interieur de l'ecrou devra etre aussi 4 (M4).