The Gold Air Window and Door Lock Control Face Nut is a practical and reliable solution for controlling your window and door locks. Designed for air window and door lock applications, this product fits most 2004 and older Peterbilt and Kenworth makes and models. With its durable construction and easy installation, this control face nut ensures smooth operation and enhanced security. Sold individually, it offers a convenient and cost-effective solution for maintaining the functionality of your vehicle's locks. Trust the Gold Air Window and Door Lock Control for a reliable and efficient locking system.