Press-fit inserts are used for pressing into soft materials such as Plastics, Foamed Plastics and Rubber. Ideal for when strong, reusable threads are needed. We offer Brass Round Inserts for Plastic, Brass Hex Inserts for Wood, Brass Square Inserts for Fasteners, Brass Knurling Inserts for Junction Box, and Brass Threaded Inserts for Molding.