Lock Nuts

A lock nut is a type of fastener designed to resist loosening under vibration, torque or thermal expansion. It typically features either a nylon insert or a deformed metal section that creates additional friction against the bolt threads, maintaining clamping force. Lock nuts are used when a secure long term fastening solution is required especially in dynamic or high stress environments where standard nuts may fail.

A lock nut is used to securely fasten components that are subjected to movement, vibration or shifting loads. Its locking mechanism helps maintain bolt tension preventing loosening over time. Common applications include rotating machinery, structural joints, engine mounts and any mechanical system where reliable fastening is critical. It is particularly effective in scenarios where repeated tightening is not feasible or where safety is a concern.

Lock nuts are widely used in industries such as automotive, aerospace, railways, heavy equipment manufacturing and construction. They are commonly installed in applications like suspension systems, machinery assemblies, electrical enclosures and pressure equipment. Their ability to withstand vibration and thermal cycling makes them essential in critical systems requiring long term stability and safety.