High-Strength Internal & External Threaded Inserts
High-strength internal and external threaded inserts are bushing-style fasteners that build a robust female thread inside low-strength parent materials. Each insert carries an external thread (or knurl) that locks into a prepared hole in the aluminum or magnesium component, plus a precision internal thread that receives the mating bolt. This dual engagement spreads clamp load across a much larger area than a tapped hole in soft metal could, so the joint resists pull-out, shear and wear far better.
Available in carbon steel or stainless steel and capable of Property Class 8 or 10 strength levels, the inserts upgrade a fragile casting into a repeatably serviceable, high-load connection. They are especially valuable where a threaded point must survive frequent assembly cycles or high operational stress without degrading the base material, turning an easily stripped hole into a reliable structural feature.
By moving the load path into a steel insert, designers can specify thin-wall aluminum and magnesium parts without sacrificing joint strength or service life.
Engineered for critical structural connections, these inserts reinforce threaded points in automotive engine blocks, transmission housings and EV battery trays, provide high-integrity fastening for aerospace lightweight structures and avionics, and harden threads in precision industrial machinery. They are the practical solution for aluminum and magnesium parts that must carry real structural load.
From EV battery trays and engine hardware to airframe structures and industrial machinery, it lets light alloys carry real structural load safely.
