Welded nut is a nut that is welded to the parts where it is required to become an integral part of the part, to then be able to screw screws and bolts, tightening with a wrench or other tool only one connection element (hold with one key nut, or bolt, and others to turn, no longer necessary).
Scope DIN 929 is used in mechanical engineering, construction, warehousing equipment, lifting equipment, agricultural machinery, tools, etc.
Material stainless steel. The grade of steel A4 allows to use fastenings at considerable differences of temperature and in the aggressive and humid environment.
Without coverage.