The Lincoln Grease Fitting Zerk 65 features a 1/4-18 NPT thread size, crafted from durable steel with a zinc coating (ZC) for enhanced corrosion resistance. This fitting is designed for efficient lubrication in various machinery and automotive applications, ensuring optimal performance and longevity. Its compact size allows for easy installation in tight spaces, making it a reliable choice for maintenance professionals. Ideal for use in grease systems, this fitting meets industry standards for quality and reliability.