Overmolded Threads & Metal Insert Molding Parts: Rainbowmold overmolds threaded inserts, metal bosses, bushings and conductive terminals directly into plastic parts, creating durable assembly points and reliable electrical paths without secondary hardware. Because our stamping and injection divisions work under one roof, we can manufacture the metal insert and overmold it in a controlled, cost-effective flow. Ideal for connectors, appliance housings, sensors and fastener-rich enclosures, with full dimensional and pull-out strength testing.
Rubber-Plastic Overmolded Connector
TPE-Overmolded Overmolded Sensor
Sealing-Grade Sealed Enclosure
Sealing-Grade Two-Shot Bezel
Insert & Threaded Metal-Part Overmolding: our custom injection-molding cell runs the Insert & Threaded Metal-Part Overmolding on 40+ presses from 25 to 1800 tons, covering tiny precision clips up to large structural housings. materials handled include commodity and engineering resins (ABS, PP, PC, PA, POM, PBT, PEEK) plus over-mold TPE. Vertical, two-shot, insert and over-molding processes are supported, and cleanroom molding is available for medical parts. we add insert/over-molding, plating, printing, ultrasonic welding, and kitting under one roof. As-molded tolerances are controlled to +/-0.02mm with full PPAP, DOE and first-article inspection documentation. Output is delivered under ISO 9001 to automotive, electronics, medical and consumer-product OEM programs. Share your CAD file or a sample drawing for tooling advice and a molding quote.
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