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OEM Fastening Systems | Special Components & Fastening Systems
  • Threaded Inserts for Plastic
  • CL Series Compression Limiters for Plastic Assemblies

    Compression limiters are commonly used in applications where a compressive load is applied to a plastic assembly. The compression limiter strengthens the plastic and resists/carries the load that is applied when a bolt is tightened in the assembly. The integrity of the plastic is not compromised by the load that is applied.

    Because of the amount of variables involved, compression limiters are made on a custom basis to meet your individual specifications. Various lengths and sizes can be manufactured to accommodate inch and metric bolts. Below you will see some common design options to consider when choosing a compression limiter for your application.

  • HC Series Headed Chevron Threaded Inserts

    Our HC Series headed chevron threaded inserts offer the same benefits as the C Series, plus a flanged head for a greater load-bearing surface in weaker plastics. This headed insert offers a large contact area for electrical connections and greater pull-out strengths for reverse entry applications.

  • MB Series Molded-in Blind Threaded Inserts

    Our MB Series threaded insert is designed to be molded into the plastic component during the molding cycle. Typically, the insert is placed on a core pin in the mold during the molding cycle. The insert is designed with aggressive knurling and undercuts to resist rotational and tensile pull loads. The part has a closed bottom (blind thread) to eliminate plastic flow into the threads. Although our catalog insert is brass, this product can also be manufactured in stainless steel, steel and aluminum.

  • S Series Symmetrical Threaded Inserts for Plastic and Stainless Steel

    Say goodbye to expensive part orientation high-volume feeding mechanisms. Our symmetrical threaded inserts for plastic can be installed either end first for faster installation (using ultrasonic or thermal equipment) and lower costs.

    By decreasing outward hoop stress, symmetrical threaded inserts decrease cycle times. Their proportionally engineered design ensures that the displaced material is encapsulated by knurls and undercuts. They are designed for straight hole applications and are ideal for thin-wall applications because little stress is applied to the walls of the part.

  • E & HE Series Threaded Expansion Inserts for Plastics

    Our E & HE Series threaded expansion inserts are designed to provide strong reusable threads in thermoset and other hard plastics. Expansion inserts are pressed into the plastic and expand when the assembly screw is tightened. The sharp diamond knurling provides resistance to tensile and torque loads.

  • SH & SC Series Threaded Studs for Plastics

    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.

  • H Series Tapered Threaded Inserts for Plastics

    H Series tapered threaded inserts for plastics outperform all competitive inserts for ultrasonic and thermal installation into thermoplastic or structural foam. Our customers confirm it.

    We've eliminated the outward stress that occurs with other insert designs during the installation process. Our proprietary "knuckle knurl" ensures a more uniform flow of material into the diagonal knurls and undercuts, ensuring a complete fill, reducing installation time and increasing holding strengths. The tapered insert design makes alignment faster and more accurate, reducing installation time.

  • MC Series "Mold-In" Precision Inserts for Closed-End Applications

    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.

  • MT Series "Mold-In" Precision Inserts

    MT Series: Precision Inserts for Thru-Thread "Mold In" Applications.

    Our MT 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 also has a controlled minor diameter which provides for accurate positioning on core pins.

  • P & HP Series Press-In Threaded Inserts for Hard Plastics

    P & HP Series press-in threaded inserts for plastics provide adequate holding strengths without the use of ultrasonic or heat equipment. These straight-hole threaded inserts are most commonly used in thermoset or other hard plastics. The pilot end provides for fast alignment. The insert is placed in a hole, pressure is applied and the three bands of helical knurls dig down deep and lock the insert in place, providing excellent torque-out resistance.

  • Special & Custom Designed Inserts

    Our business philosophy encourages success through the teamwork concept. Included in this philosophy is the relationship created between TriStar and you, the customer. Design Engineering starts the process of building this partnership.

    We take pride in our ability to design custom inserts specifically for your application. During our Design Input Process, our Engineering Department will utilize their extensive manufacturing and machining knowledge to design an insert that incorporates the specific parameters that you provide us. The end result is a design that will meet or exceed your specific requirements and be cost effective to produce. Additionally, we can recommend alternative designs in an attempt to provide you with the total lowest cost possible for your application. Our Engineering Department will provide a CAD specification for your review and subsequent approval.

    Our Engineering Department teams up with the Sales Department to provide you with a prompt quotation for your requirements. Our short delivery times and low minimum order quantity lead the insert industry.

    We understand there are times when a standard brass threaded insert will not meet the specific requirements of your application. The next time your project calls for a special insert, contact our Engineering Department or fill out our online inquiry form to have a representative contact you. We will be more than happy to work with you to provide an effective design for your application.

AztechDelta PT
SEMSTaptite 2000