Grade C NE Nylon Insert Locknut Phosphate & Oil

The Grade C nylon insert locknut (NE style) with a phosphate and oil finish is engineered for high-strength fastening in tough, vibration-prone environments. Built from hardened steel, this locknut is ideal for applications requiring maximum durability, secure locking action, and consistent torque performance. The NE designation refers to a full-height, heavy-pattern nylon insert locknut, commonly used in industrial machinery, construction equipment, heavy trucks, and agricultural assemblies.

What makes this locknut excel is the combination of its Grade C material and its phosphate & oil coating. Grade C steel provides the mechanical strength necessary for high-load, high-torque assemblies, while the phosphate and oil finish enhances lubricity, making installation smoother and reducing the chance of galling. This finish also adds a layer of mild corrosion resistance, ideal for indoor or partially protected outdoor environments.

The embedded nylon insert acts as a prevailing torque mechanism, gripping the bolt threads and preventing loosening caused by vibration or repetitive motion. This makes the NE style locknut particularly valuable in assemblies where shock loads or long-term vibration are present and safety is paramount.

Specifications & Features:

• Type: NE style (heavy pattern) nylon insert locknut

• Material Grade: C (hardened steel for structural integrity)

• Finish: Phosphate & Oil (for lubricity and mild corrosion resistance)

• Thread Type: Inch – UNC, UNF available

• Sizes: Typically ranges from 1/4"-20 up to 1"-8 and larger

• Standards: SAE J995, ASME B18.16.6

When strength, reliability, and resistance to loosening matter most, the Grade C NE nylon insert locknut with phosphate & oil finish delivers exceptional value and proven performance.

Need application-specific help? Our fastening specialists are just a message away!