Aluminum Alloy Inserts
Aluminum Alloy Inserts provide metal threads in plastic components where weight matters. Made from lightweight, high-strength aluminum and finished by anodizing or passivation, they resist corrosion while adding only a fraction of the mass of a comparable brass or steel insert.
The outer diameter is machined with a knurled profile. When the insert is pressed or moulded into a plastic boss, the knurl interlocks with the polymer, providing torque-out and pull-out resistance that keeps the thread stable even when the joint is loosened and retightened during service.
The internal thread is produced to high precision, so standard screws seat cleanly and hold their clamping load. The result is a robust, stable metal connection point for plastic parts — without the weight penalty that would come with a denser insert material.
Widely used in lightweight automotive components, high-end handheld electronics, UAV airframes and smart home plastic enclosures, these inserts suit fastening points that require weight reduction and frequent assembly or disassembly.
They meet the industry's demand for durable, corrosion-resistant threaded connections in plastic structures — for example in drone frames, portable instruments and appliance housings where both mass and reliability are critical.
