XB-HLN-M12-Z
Lock Nut M12
SAF-Holland

Self-locking nut sized for M12 threads provides a vibration-resistant fastener retention method in trailer and coupling assemblies. While the exact locking mechanism is not described, this nut is designed to resist loosening under cyclic loads and shock, maintaining integrity of joints in hot and humid vehicle environments. The product is part of the component family within SAF-Holland’s hardware catalog and matches corresponding bolt diameters (M12, 1.75 mm pitch). Its zinc finish contributes to corrosion resistance, extending service life in road salt or wet road conditions. VMRS code 053-007-035 places it within the lock nut family used in general hardware assemblies, and category 42594 indicates a fastener variant common in trailer hardware. In field use, technicians verify thread engagement and apply appropriate torque to the mating bolt, ensuring a consistent clamp load. Observe safety labeling, including P65 warnings, during handling and installation to protect operators during maintenance operations or during on-site field repairs.