The 1/4" 125# Chrome Plated Leaded Red Brass Hex Locknut from Merit Brass is a reliable component for secure fastening in plumbing and HVAC applications. Made from leaded red brass, it offers excellent corrosion resistance and strength. This locknut meets ASTM B456 standards, ensuring it can withstand high-pressure conditions. With a 125# rating, it is designed for durability. The chrome plating provides a sleek finish while enhancing its resistance to wear. Its precise dimensions guarantee compatibility with standard NPSL threads, making it an essential part of various installations.