Skip to Content

THREAD 3/8" Locknut BRASS

The THREAD 3/8" Locknut BRASS is a brass locknut with 3/8" NPT thread for secure pipe connections in heat pump installations.

  • Brass construction ensures corrosion resistance and durability
  • 3/8" NPT thread provides standard tapered connection compatibility
  • Locknut design creates secure, leak-free pipe fittings
  • Thermal conductivity maintains system efficiency in heating applications

This locknut secures pipe connections in Thermal Earth Navigator heat pump systems and compatible brass fittings.

£ 1.34 £ 1.34 (Tax included)
£ 1.34 (Tax included)

Custom Built Kits 
Every system is tailored to your specific project requirements, ensuring a seamless installation. 

Next Day Shipping

We hold a large stock of many items that are available for next day delivery.
Trade Accounts Available 
Register for a trade account to access preferential pricing, dedicated support and credit.
Full System Design Service 
Our experienced team cam design a complete heating system tailored to your project.