This left-hand threaded hex nut is manufactured to ISO 4032 standards and made from plain steel—steel without any coating or surface treatment. While the material is strong, it offers little natural resistance to corrosion on its own. Rated at strength class 8, this nut is designed to pair with bolts and screws of strength class 8.8 or lower. The left-hand (LH) thread direction is primarily used on components that rotate clockwise, helping to prevent them from loosening during operation. The nut features standard metric threading.