Tri-Star Industries, Inc.

Brass|Threaded inserts| for plastics outperform

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.