Threaded Inserts are cylindrical, metal bushings with features on the outside which lock them into a plastic or metal base material to anchor your fasteners. Our Threaded Inserts provide high-quality, permanent, wear-resistant internal threads and are designed to be installed in molded or drilled holes in one simple step. While each style performs in a range of materials, they are generally classified by method of installation: Thread-Cutting, Thread-Forming, Push-In, or Ultrasound.Threaded Inserts are cylindrical, metal bushings with features on the outside which lock them into a plastic or metal base material to anchor your fasteners. Our Threaded Inserts provide high-quality, permanent, wear-resistant internal threads and are designed to be installed in molded or drilled holes in one simple step. While each style performs in a range of materials, they are generally classified by method of installation: Thread-Cutting, Thread-Forming, Push-In, or Ultrasound.