1/2 In. Fip Galvanized Malleable Iron Lock Nut - Model 311upln-12

Introducing the STZ Industries 1/2 in. FIP Galvanized Malleable Iron Lock Nut, now available at Boulevard Hardware & Supply Co in Ridgefield, NJ. This essential plumbing component is designed to provide a secure and reliable connection for your piping systems. Crafted from durable malleable iron and finished with a galvanized coating, this lock nut is perfect for both residential and light industrial applications. Whether you're a professional plumber or a DIY enthusiast in Ridgefield, this lock nut is a crucial addition to your plumbing toolkit.

• Lead-Free Construction: This lock nut is made with average lead content that is lead-free, ensuring safe use in potable water applications.


• Durable Material: Constructed from malleable iron, this lock nut is designed to withstand high pressures and temperatures, making it ideal for various plumbing needs.


• Maximum Pressure Rating: Rated for a maximum pressure of 300 psi at 150°F, this lock nut is built to handle demanding conditions.


• Galvanized Finish: The galvanized finish provides excellent corrosion resistance, ensuring longevity and reliability in your plumbing systems.


• Hydrostatically Tested: Each fitting is hydrostatically tested at the factory, guaranteeing quality and performance.

Imagine tackling your plumbing projects with confidence, knowing that you have the right components to ensure a leak-free installation. The STZ Industries lock nut is perfect for securing connections in your water supply lines, making it an essential part of any plumbing project. Whether you're replacing old fittings or installing new pipes, this lock nut will help you achieve a professional finish.



In conclusion, the STZ Industries 1/2 in. FIP Galvanized Malleable Iron Lock Nut is more than just a simple fitting—it's a vital component for ensuring the integrity of your plumbing systems. Don't compromise on quality; choose this reliable lock nut for your next project. Visit Boulevard Hardware & Supply Co in Ridgefield, NJ to get yours today and experience the difference in your plumbing applications.