"Swivel fasteners" typically refer to connecting components used in mechanical, vehicle, or structural applications that allow parts to rotate or swivel within a certain range. Key Features - **High Strength Materials**: Such as alloy steel, stainless steel, heat treated for increased wear resistance. - **Anti-Loosening Design**: Utilizes locking nuts, spring washers, or thread locking compounds to prevent loosening. - **Corrosion Resistance**: Surface galvanized, phosphatized, or coated with anti-rust layers. - **Precise Tolerances**: Ensures smooth rotation and reduces wear (e.g., bearing mating parts).