This left-hand thread hex nut meets ISO 4032 standards and is made of steel with an electro-galvanized zinc coating. Rated at strength class 8, it's designed to pair with bolts and screws of strength class 8.8 or lower. The left-hand (LH) thread direction is primarily used with clockwise-rotating components to prevent loosening during operation. The nut features metric threading, and its electro-galvanized finish makes it best suited for indoor applications or environments with minimal exposure to the elements.