The MOLEX 15-04-0220 is a crucial accessory within the KK Interconnect System, specifically designed as a polarizing peg with a boss. This component provides a secure and reliable connection by ensuring correct alignment during mating. Manufactured from durable nylon resin, it offers excellent insulation and mechanical strength. The 3.96mm pitch makes it suitable for a variety of applications in consumer electronics, industrial equipment, and automotive systems. Its RoHS compliance further enhances its appeal for environmentally conscious designs. This polarizing key is a vital element for maintaining the integrity and functionality of KK connector systems.