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Certificate #10254
1000 Piece / $125 Minimum Order
Quality threaded inserts, made in America
Tri-Star Inserts are RoHS Compliant
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Tri-Star Industries, Inc. Threaded inserts for plastics
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Threaded Inserts for Plastics

Below you will find information on Tri-Star's threaded inserts for plastics.  We offer a full line of brass inserts for all methods of installation, including: ultrasonic, heat, thermal, press-in and mold-in. Tri-Star can also custom design and produce inserts for most applications with a low minimum order quantity requirement. Although our standard line is brass inserts, we also stock stainless steel inserts in a variety of styles and sizes. Our threaded inserts start at 0-80 for inch threads and M1.6 for metric threads. We offer the most extensive variety of lengths for ultrasonic and thermal threaded inserts in the industry.

Remember, if you don't see what you're looking for listed here, call our Engineering Department at 1-800-882-8980 and ask to speak with a Design Engineer. Please note: Tri-Star requires a 1,000 piece / $125.00 minimum order.

tapered threaded inserts for plastic H Series Tapered Threaded Inserts – The leading insert for ultrasonic or thermal installation into thermoplastic or structural foam. A row of unique "knuckle knurls" reduces residual stress and increases strength. The tapered design reduces installation time, making alignment faster and more accurate.
chevron threaded inserts for plastic C Series Chevron Threaded Inserts – Designed for straight holes using ultrasonic or thermal processes. This series features two opposing bands of sharp diagonal knurls of different diameters for maximum gripping power. A lead-in pilot diameter assures true perpendicular alignment.
headed chevron threaded inserts for plastic HC Series Headed Chevron Threaded Inserts – The HC Series features a flange for a greater load-bearing surface in weaker plastics. The flange provides a large contact area for electrical connections. Used in reverse-entry applications, the HC Series offers exceptional pull-out strengths.
symmetrical threaded inserts for plastics S Series Symmetrical Threaded Inserts – For fast, high-volume applications, symmetrical inserts install without orientation using ultrasonic or thermal equipment. They are designed for straight holes and are ideal for thin-wall applications because little stress is applied to the walls of the part.
press-in threaded inserts for plastic P & HP Series Threaded Press-in Inserts – Straight-hole inserts install easily in hard or thermoset plastics without heat or special equipment. Three bands of helical knurls anchor the insert firmly into place and provide excellent torque-out resistance.
Expansion threaded inserts for plastic E & HE Series Threaded Expansion Inserts – Designed to provide strong, usable threads in thermoset and other hard plastics. The inserts are pressed into the plastic and expand when the assembly screw is installed. The sharp diamond knurls secure them into the plastic. Inserts are available with or without a flange.
Threaded studs for plastic SH & SC Series Threaded Studs – Available in H or C Series body designs. 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 variable to meet your specific requirements. Special studs without threads can be used as axles, pivots, pins, locating points or solder terminals.
molded-in blind threaded inserts for plastics MB Series Mold-in Blind Threaded Inserts – Designed for mold-in applications. The inserts feature a blind thread (closed bottom) that prevents plastic from entering the bottom of the insert.
Mold-in Closed-end Inserts MC Series Mold-in Closed-end Inserts – Designed to be molded into Plastics, Rubber & Ceramics, 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.
Mold-in Thru-thread Inserts MT Series Mold-in Thru-thread Inserts – Designed to be molded into Plastics, Rubber & Ceramics, 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.
compression limiters for plastics CL Series Compression Limiters – Unthreaded spacers (bushings) used to strengthen plastics during compression loads. These types of loads are generated when fastening bolts and screws during assembly. Compression limiters can be designed for any installation method.
custom-designed threaded inserts for plastic Specials & Custom Designed Parts – Our Design Engineers will be happy to adapt an existing insert or create a custom design specifically for your application. And you'll be surprised how quickly we get back to you.
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Threaded Inserts :: Tapered Inserts | Chevron Inserts | Symmetrical Inserts | Press-in Inserts
Expansion Inserts
| Threaded Studs | Mold-in Blind Threaded Inserts
| Mold-in Closed-end Inserts
Mold-in Thru-thread Inserts |
Compression Limiters | Custom Parts
Tri-Star Industries, Inc.
101 Massirio Dr., Berlin, CT 06037 :: Tel 860-828-7570 :: Fax 860-828-7475 ::
sales@tristar-inserts.com