Yardley INTRO-SERT Ultrasonic Inserts offer plastic molders and users, impressive benefits in lower cost production and better quality assemblies. In addition, they offer a choice of installation methods with conventional high frequency ultrasonic production equipment or the Yardley Thermal Inserter for low volume work. Advantages:-Reduces molding cycle time by eliminating placing of inserts into mold cavity-Requires less costly mold construction yet provide more design latitude for molded parts-Rounded annular ribs reduce the stress concentration that causes residual cracking-Offer high resistance to rotation and pull-out-Adaptable to automated, high volume productionNOTE: For Quantities Over 50,000 Please Call 1-800-457-0154