About

About LeJeune Bolt Company LeJeune Bolt Company is the leading supplier of structural fasteners and tools and the exclusive source for the ASTM F3148 TNA® Torque + Angle Fastening System. With ASTM F3148 and the Combined Method approved by RCSC—and a formal publication forthcoming from AISC and AREMA—F3148 TNA bolt assemblies using Torque & Angle installation can be specified with confidence. We celebrate our 50th anniversary focused on delivering proven solutions that improve installation efficiency, strengthen quality control, and reduce total installed cost. Visit us at Booth 1441 for a live demonstration of the F3148 TNA® Torque + Angle Fastening System.