Shoulder Plug Product Features:

Plug Sizes: 3/4” – 2-1/8” (for 5/8” – 2” Tube O.D.)
Length Under Head: 3/4” – 3”
Materials: Carbon Steel, 316 Stainless, custom alloys/coatings
Easy Installation: Threaded design fits header plug sheets
Maintenance-Friendly: Access for inspection, cleaning, and tube plugging
Durable & Safe: Handles high pressure/temperature, prevents leaks
Custom Options: Non-standard sizes available
Fast Delivery: Same-day shipping on stock, local TX/LA delivery
Applications: Air-cooled heat exchangers in oil & gas, refineries, petrochemical, power plants

Shoulder Plug
Description

Shoulder Plug
Description & Uses

Shoulder Plug
Sizing Chart

Snap It®
Engineered Tube Plugs

SHOULDER PLUG / HEADER PLUG DESCRIPTION:

Header Plugs, also referred to as Shoulder or UNF Plugs, are threaded plugs specifically designed for use in fin-fan® heat exchangers. Fin-fans*, also recognized as air-cooled heat exchangers, are essential devices utilized to extract heat from process fluids by transferring it to the surrounding air.

For the world's largest industrial facilities, halting a shutdown or turnaround for a small part of a heat exchanger is not feasible. We have the capacity to manufacture over 1,000 header plugs / shoulder plugs daily for your fin-fan, maintaining high quality and adhering to your precise specifications, with shipping available 24/7!

The next time you require plugs for your fin-fan, reach out to USA Industries. Our in-stock plugs and gaskets can be shipped on the same day!