Products Detail

DIN 985 is a classic German standard for nylon insert prevailing torque lock nuts, widely adopted for anti-loosening fastening in mechanical, industrial and structural applications. Different from all-metal self-locking nuts and ordinary standard nuts, DIN 985 nuts integrate a high-performance nylon ring inside the hex body. The nylon insert creates friction resistance during bolt threading, delivering excellent locking and anti-loosening effects under vibration, alternating impact and dynamic load conditions. This structure avoids thread loosening effectively without damaging the thread tooth surface, featuring easy assembly, strong adaptability and reusable performance, which makes it one of the most versatile anti-loosening fasteners in general industrial fields.
Our factory supplies high-quality DIN 985 nylon insert lock nuts with complete mainstream strength classes of 5, 8 and 10, fully meeting light, medium and heavy-duty industrial fastening requirements. The products are manufactured from premium carbon steel and alloy steel materials, with a full size range covering M12 to M36. Adopting integral forging and precision tapping technology, all nuts feature smooth thread surface, precise dimensional tolerance and accurate thread meshing, ensuring perfect compatibility and interchangeability with standard metric bolts.
All DIN 985 lock nuts are produced in strict accordance with DIN standard specifications. Corresponding strength grades adopt standardized heat treatment as required to guarantee stable hardness, reliable tensile strength and overall structural stability. The imported-grade nylon insert features excellent heat resistance, fatigue resistance and deformation resistance, maintaining stable locking torque for long-term service. With outstanding anti-loosening, shockproof and anti-vibration performance, DIN 985 nuts are widely used in mechanical equipment manufacturing, automotive industry, electrical facilities, steel structure auxiliary connections and general engineering assembly, providing economical, clean and high-reliability anti-loosening fastening solutions for various static and low-frequency dynamic working scenarios.

Manufacturer Advantages:
We are a professional manufacturer specialized in DIN standard anti-loosening fasteners, with mature and stable production technology for DIN 985 nylon insert lock nuts. We have established a complete full-process quality management system covering raw material inspection, precision forging, thread tapping, standard-compliant heat treatment, nylon ring assembly and finished product torque testing. We strictly control core indicators such as locking torque, nylon ring fastening tightness and mechanical properties to ensure zero loosening failure and consistent batch quality.
We support full-size bulk standardized supply and customized processing of M12–M36 DIN 985 nuts in Class 5, Class 8 and Class 10. All products strictly comply with German DIN standard requirements, with stable locking performance, high assembly accuracy and excellent cost performance. With reliable product quality, mature production capacity and considerate full-cycle service, our DIN series fasteners have gained wide recognition from domestic and overseas customers. We sincerely look forward to establishing long-term stable and win-win cooperative relationships with global clients and becoming your trustworthy fastener supplier.

Surface Finishing:
Black Oxide, Zinc Plating, etc.