National Hardware 3/16" x 5-1/2" Stainless Steel Eye & Eye Turnbuckle is designed for tightening or drawing together various lines and cables with ease and reliability. This turnbuckle is i for marine and other outdoor applications, thanks to its resistance to atmospheric corrosion. Crafted from stainless steel with an aluminum body, it superior durability and strength. The eyes are passivated to enhance corrosion resistance, while the hex-shaped body allows for easy adjustment by hand or with a wrench. Additionally, these turnbuckles are nonmagnetic, making them suitable for specialized environments where magnetic interference must be avoided. Model Number: N221-820