The Alemite Grease Fitting Zerk 6-40 UNF is a high-quality steel fitting designed for efficient lubrication in various applications. Made from zinc-coated steel, this fitting ensures durability and resistance to corrosion. With a thread size of 6-40 UNF, it is compatible with standard grease guns and fittings, making it ideal for automotive and industrial use. The Zerk design allows for easy attachment and secure grease delivery, enhancing the longevity of machinery and equipment. This fitting meets industry standards for performance and reliability, ensuring optimal lubrication in demanding environments.