Molex VersaKrimp Uninsulated Crimp Ring Terminals Avikrimp™ insulated metric crimp ring terminals with a seamless barrel and halogen free nylon insulation. These Avikrimp™ insulated crimp ring terminals are made from oxygen free copper with tin plating and have a tin plated brass ferrule. A double crimp is created with both the conductor and insulation which provides good vibration resistance. The seamless barrel of these Avikrimp™ crimp ring terminals enables easier crimping by allowing the barrel to rotate in the crimping jaws.