SELF LOCKING NYLON INSERT NUTS STAINLESS STEEL PACK

Self-locking hex nuts with nylon inserts, commonly known as Nyloc nuts, are designed to resist loosening caused by vibration and torque. These nuts use a captive nylon ring that deforms around the bolt threads, creating friction without cutting into the nylon itself.

Key Mechanical Functions
Vibration Resistance: The internal nylon collar deforms around the bolt threads to create a high-friction "prevailing torque" that resists backing off, even under heavy mechanical shock.
Thread Sealing: The nylon insert can help seal the bolt thread against the seepage of liquids like water, oil, and petrol.
Surface Protection: The nylon material acts as a cushion, which can reduce wear on the bolt threads during installation compared to all-metal locking nuts. 

Common Industry Applications
Automotive: Securing critical components such as suspension systems, engine parts, chassis assemblies, and wheel hubs.
Marine & Coastal: Used extensively on boats, ships, and offshore structures because the stainless steel (especially 316 grade) resists saltwater corrosion.
Construction: Anchoring structural elements, steel frameworks, and machinery that must withstand heavy loads and environmental forces.
Manufacturing & Machinery: Holding moving parts together in heavy-duty industrial equipment, commercial washing machines, and agricultural machinery.
Electronics & Appliances: Mounting components in electronic enclosures, 3D printer assemblies, and domestic appliances like HVAC systems.

Important Usage Limitations
Temperature: These nuts are restricted by the melting point of the nylon insert. They are generally reliable only up to approximately 121°C (250°F); above this, the nylon may degrade and lose its locking ability.
Reusability: While they can be reused a limited number of times (sources vary from 5 to 15 times), their locking effectiveness degrades with each use as the nylon insert becomes permanently deformed.