The 1/8" 125# Chrome Plated Leaded Red Brass Hex Locknut by Merit Brass is engineered for secure fastening in plumbing and HVAC systems. Constructed from leaded red brass, it provides excellent strength and corrosion resistance. This locknut adheres to ASTM B456 standards, making it suitable for high-pressure applications. With a 125# rating, it is designed for durability. The chrome plating not only enhances its aesthetic appeal but also increases its resistance to wear. Its precise dimensions ensure compatibility with standard NPSL threads, making it a reliable choice for various projects.