Lock Joint Tube LLC provides high-quality tubular products to several different markets for a variety of mechanical & structural grade steel tubing applications. Our extensive experience with a vast number of materials, applications, and fabrications allows LJT to offer the technical support and product performance necessary to exceed the customers’ expectations. In the business of steel tubing manufacturing, LJT satisfies demands from simple structural to the most demanding of automotive applications, we also specialize in steel fence tubing.
Lock Joint Tube (LJT) has been a proud partner of the automotive industry for 100 years. Our capabilities in creating unique shapes, precision cutting, and subject matter experts have helped the industry evolve and innovate.
In 2020, the U.S. solar market installed over 19 Gigawatts of solar capacity, a 43% increase from 2019. Lock Joint Tube (LJT) has been a proud partner and top supplier of the Solar Industry since its inception.