News
ASTM F3148 Standard Specification for TNA
ASTM F3148-17a Standard Specification for High Strength Structural Bolt Assemblies, Steel and Alloy Steel, Heat Treated, 144ksi Minimum Tensile Strength, Inch Dimensions. Within the standard you will find all of the information required to specify TNA®. Included in the standard you will also find important additional information needed to implement the system. In F3148 you [...]
TNA® Trade Show Schedule
[contact-form-7 id="5823" title="Demonstration"]
CoreBrace Uses TNA® Bolts for BRB Brace Testing
CoreBrace, the leading designer and fabricator of Buckling Restraint Braces, recently tested our ASTM F3148 TNA Fastening System at UCSD. CoreBrace calls for an exacting installation process of it's BRB's to ensure their performance. The installation process requires the installer to perform systematic snug passes followed by final tensioning through all rows of bolts. Each [...]
TNA® Fastening System For Temporary Bolting
The Honolulu Rail project is a unique and complex bolting application; Perfect for our F3148 TNA Fastening System. The project is a complex concrete segmented bridge, housing the new elevated lightrail system, running out in 3 spans throughout the Honolulu Metro area. The contractor was looking for a safe and efficient solution to mob and [...]
TNA® Fastening System For High-Strength Galvanized Application
Open Access Technology International, Inc. (OATI) South Campus Building incorporates a unique “Microgrid” on the roof of the structure, housing the solar panels and wind turbines to power the 110,000 sq ft facility. The Microgrid structure is exposed galvanized steel that required a coated bolt with A490 equivalent tension. The fabricator chose LeJeune’s F3148 TNA® [...]