Technologically-superior fastening system ideally suited for threaded joint applications subjected to heavy vibration and challenging environments. Whether it's a simple change of a fastener or a custom-designed solution, Spiralock® technology delivers reliability of product performance that customers can count on. Spiralock® is one of three Optia® anti-vibration technologies. By adding a 30° wedge ramp at the root of the internal thread, Spiralock® has engineered a simple yet effective way to transform a traditional threaded joint into a safer and more reliable element. This remarkable design provides exceptional resistance to vibration loosening, improved joint integrity and consistent, repeated reusability while eliminating the need for secondary locking devices. Why change to Spiralock threads? - Exceptionally resistant to vibration loosening - Eliminates need for other locking devices - Accepts standard male fasteners - Improves joint fatigue life - Consistent reusability - Eases assembly, reducing assembly time - Reduces life cycle cost of threaded joints