Founded in 1919, Lock Joint Tube specialises in manufacturing of mechanical and structural grade steel tubing. The company is a privately owned business and member of the Lerman Enterprise network of related-industry companies. It services fabricators, distributors, as well as original equipment manufacturers with different sized and shaped steel tubing used in such diverse industries as automotive, office furniture, health care, exercise and display fixtures, to name a few. The Department of Technical Services at Lock Joint Tube provides its customers with a service for testing and evaluation of steel and steel tubular products. The company also offers any customer direct access to metallurgical support.

Website: ljtube.com

Phone: (574) 299-5326