National Hardware 50" Zinc Screen Door Turnbuckle is designed to brace, raise, or eliminate sagging on screen or storm doors effectively. Crafted with steel construction and a zinc finish, this turnbuckle features threaded steel rods that resist rusting when connected to the aluminum turnbuckle body, ensuring long-lasting durability. It comes conveniently packed in a visual-pac with screws for easy installation, making it a reliable choice for maintaining the integrity of your doors. Model Number: N117-580