Tri-Star Industries

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  • C Series

    C-Series

    Some thermoplastics, like polycarbonates and structural foams, are brittle – especially in thin-wall applications. Designed for straight holes using ultrasonic or thermal processes, our chevron threaded inserts for plastic add considerable strength. They are our most popular brass inserts, offering the most overall length choices.

    Our chevron inserts feature two opposing bands of sharp diagonal knurls, providing high tensile pull-out load carrying capability. Little or no stress is applied to the walls of the molded holes. A lead-in pilot diameter assures true perpendicular alignment.

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  • MC Series

    MC Series

    Our MC-Series insert is designed to be molded into Plastics, Rubber & Ceramics. The insert is designed with aggressive diamond knurling that provides high resistance to tensile pull and rotational torque loads. It has a closed bottom and a controlled minor diameter which provides for accurate positioning on core pins. The “closed-end” bottom prevents plastic flow into the threads.

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  • SH SC Series

    SH & SC Series

    Threaded studs are commonly used to fulfill specific design functions, to save money in production costs, to function as electrical contacts or to replace self-tapping or removable screws. Thread lengths are available to meet your specific requirements. Special studs without threads can be used as axles, pivots, pins, locating points or solder terminals.

    The body of the SH Series Threaded Stud is specifically modeled after our H Series Insert. Its key feature is the tapered design, which allows for easy insertion into tapered molded or drilled holes. They may be installed using the thermal or ultrasonic method or can be molded in place.

    The body of the SC Series Threaded Stud is modeled after our C Series Insert. Its key feature is the opposing diagonal knurls, which will provide exceptional rotational and tensile resistance. The SC Series is designed for straight molded or drilled holes. They may be installed using the thermal or ultrasonic method or can be molded in place.

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