The Kwikset 81838-003 Thick Door Pack Handleset Adapter is a specialized accessory designed to accommodate thick doors, providing compatibility and ease of installation for Kwikset handlesets. This adapter pack includes components and hardware necessary for securely mounting the handleset onto doors with non-standard thickness, ensuring a proper fit and functionality. It simplifies the installation process and ensures that the handleset operates smoothly and securely on doors that exceed standard dimensions. With the Thick Door Pack Handleset Adapter, homeowners can confidently upgrade their doors with Kwikset handlesets, enjoying enhanced security and aesthetics without compromising on compatibility or performance.