Header Plugs, Shoulder Plugs, Hex Plugs for Heat Exchangers

Rapid Delivery of Header Plugs for Fin-Fans® and Air-Cooled Heat Exchangers

USA Industries Header Plug - Shoulder Plug Hero Image


  • Available in 20+ metals and coatings
  • Production capacity of 1,000+ plugs daily
  • Rapid turnaround on custom sizes / materials
  • Same-day shipment on in-stock sizes


USA Industries is the go-to company for several of the world's largest power plants, refineries, and chemical facilities for header plugs or shoulder plugs. We pride ourselves on our rapid production capabilities, quick turnaround times, and flexbility to produce our plugs in almost any combination of metals (carbon steel, stainless steel, copper and brass are standard), coatings (cadmium, electroless nickel, galvanized, nickel, zinc or uncoated) and size.

For the world's largest industrial facilities, keeping a shutdown or turnaround on hold for a small part of a heat exchanger doesn't add up. We're able to produce more than 1,000 header plugs / shoulder plugs daily for your fin-fan (air-cooled heat exchanger) at a high quality, to your exacting specs and ship them out 24/7!

The next time you need plugs for your fin-fan (air-cooled heat exchanger), contact USA Industries. In-stock plugs and gaskets ship the same day!

Order plugs and gaskets together and save!

Greatly Improve Sealing Capabilities With Less Than Half the Installation Torque Required for Flat Gaskets. Upgrade from Traditional Gaskets to USA Industries' Exclusive EZ Torque® Gaskets
EZ Torque® Header Plug Gaskets

Our EZ Torque Gasket provides a positive seal with less than half the installation torque required for flat gaskets. The gasket is a serrated metal core with bonded layers of graphite on each surface. This greatly increases the ability of our gasket to seal against surface imperfections, eliminating expensive re-machining costs.

The EZ Torque Gasket helps lower the expense of downtime during your turnaround / shutdown by ensuring you pass leak tests on the first attempt. Our gasket also requires less torque, preventing damage and deformation to header box gasket surfaces, plug thread galling, and thread shear within your header box.

Frequently Asked Questions