Self-Lock™ is an engineered wedge ramp at the root of the internal thread that only engages when the joint starts to build clamp load during tightening.

Spiralock ® is a self-locking female thread form with a unique 30° wedge ramp at the root of the thread. This unidirectional locking feature is compatible with standard 60° male thread fasteners.

Spiralock’s unique self-locking thread technology adds a locking feature to tapped holes that prevents vibration loosening while still allowing standard external threaded parts to spin freely during assembly.

Dec 22, 2025 · Spiralock transformed the standard internal thread profile into a self-locking female thread form by adding a 30° wedge ramp at the root of the thread. This unique design prevents …

Wide-Loc is a modified female thread from that mates with a standard bolt or screw to produce a self-locking thread which is resistant to loosening due to vibration.

Self-locking inserts install into a mounting surface and provide a female-threaded hole for installing male-threaded fasteners. They feature external threading with a pre-applied thread-locking …

Taps & Gauges: Eliminate thread locking inserts or adhesives by tapping your own locking threads with the Spiralock® threading system. Apply Spiralock® to castings, structures and components by using …

Self-Lock™ is an engineered wedge ramp at the root of the internal thread that only engages when the joint starts to build clamp load during tightening.

Self-locking thread screws are engineered fasteners designed to resist loosening under vibration and torque. These screws feature a thread design that incorporates friction-generating mechanisms, …

Self Locking Inserts are a type of fastener that is designed to create a secure and permanent connection between two objects. These inserts are often used in place of traditional screws, bolts, and rivets, as …