HIGH TENSILE SELF LOCKING / NYLON INSERT METRIC HEX NUT PACK
HIGH TENSILE SELF LOCKING / NYLON INSERT METRIC HEX NUT PACK
SLM158 - M6 x 1.00mm
Hurrell Way Store
38A Hurrell Way
Rockingham WA 6168
Australia
SRB - 24/7 Fittings
38A Hurrell Way
Rockingham WA 6168
Australia
High tensile self-locking nylon insert hex nuts (commonly called nyloc nuts) are used to provide a secure, vibration-resistant fastening in high-stress environments. They are specifically designed for applications where standard nuts might loosen due to constant movement, mechanical shock, or thermal cycling.
Primary Uses
Vibration Resistance: The nylon insert deforms over the bolt threads to create a high-friction fit, preventing the nut from backing off under intense vibration.
High-Stress Fastening: Because these are high tensile (typically Grade 8.8 or Class 10), they are used in structural joints that must withstand heavy loads and high torque without fracturing.
Sealing Applications: The nylon collar can help seal the bolt thread against the seepage of liquids such as water, oil, petrol, and paraffin.
Industry Applications
Automotive: Securing critical, high-vibration components like engine mounts, suspension systems, steering linkages, and wheel hubs.
Heavy Machinery & Industrial: Used in conveyors, pumps, turbines, and agricultural equipment where continuous oscillation occurs.
Construction & Infrastructure: Fastening structural steelwork, bridges, and crane components that endure dynamic loads and environmental stress.
Aerospace: Non-critical but high-reliability systems such as landing gear assemblies and avionics mounting where anti-loosening is vital during flight cycles.
Marine: Ideal for propulsion systems and rigging, especially when using corrosion-resistant zinc-plated or stainless steel variants.
Usage Tips
Temperature Limits: These nuts generally retain their locking ability up to approximately 121°C (250°F); for higher temperatures, all-metal lock nuts are typically required.
Reusability: While they can sometimes be reused, it is generally recommended to use a new nut for critical safety applications (like steering or braking) because the nylon collar permanently deforms during the first installation.