National Hardware 3/8" x 6" Steel Eye/Eye Turnbuckle is expertly designed for marine, industrial, and construction applications, ensuring reliable performance in demanding environments. This turnbuckle meets the stringent federal specifications FF-T-791B, Type 1, Form 1, Class 4, ing high quality and durability. The end fittings are heat treated to enhance strength, while the sharp eye points are crafted to bite into wood quickly and easily, providing a secure hold. Manufactured from forged steel, this turnbuckle exceptional toughness and long-lasting use. Model Number: N177-394