Blue Zinc Plated Carbon Steel Hexagon Lock Nut DIN985 Nylon Insert Prevailing Torque M4-M24

Blue Zinc Plated Hexagon Lock Nut - DIN985 Nylon Insert

This DIN985 prevailing torque hexagon lock nut is made of carbon steel and finished with a blue zinc anti-corrosion coating. The nylon insert in the crown locks the nut against vibration, giving reliable, reusable fastening for M4-M24 threaded joints.

Key Selling Points

• Blue Anti-Corrosion Coating: The blue zinc plating forms a dense, uniform layer that resists rust, humidity and mild chemicals. It passes a 96 hour salt spray test, keeping the nut clean and protected in outdoor and humid conditions.
• Nylon Insert Locking: A nylon ring in the top of the nut grips the bolt thread to generate prevailing torque, effectively preventing loosening under vibration while still allowing easy disassembly.
• Stable Carbon Steel Body: Made from carbon steel with controlled hardness for consistent clamping load and a clean, burr-free thread in sizes M4-M24.

Specifications

Applications

Automotive parts, machinery, steel structures, electrical equipment and general assembly jobs.

Packing & Delivery

Bulk in cartons (25kg max.) on wood pallet, or according to customer special demand. Samples available for quality checking. OEM and customized sizes welcome.