Grade: 4.8, 8.8, 10.9, 12.9, Material: Q235, 35K, 45K, 40Cr, 35Crmo, 42Crmo, Surface Treatment: Blackened, Electrogalvanized, Dacromet, Hot-dip Galvanized, Galvanized, etc!
It is to tighten two identical nuts onto the same bolt, and add a tightening torque between the two nuts to ensure reliable bolt connection.
Composed of two parts, each with staggered cams. Due to the internal wedge design slope angle being greater than the nut angle of the bolt, this combination tightly bites into a whole. When vibration occurs, the protruding parts of the anti loosening nut move against each other, generating lifting tension, thereby achieving a perfect anti loosening effect.