Fastening System Specs

Press Release – LeJeune Names Boulons Plus Exclusive Canadian Distributor

LeJeune Bolt Company is please to announce an exclusive partnership with Boulons Plus to become the authorized Canadian distributor of the TNA® Torque + Angle Fastening System.  Boulons Plus and subsidiary Precision Bolt will begin marketing and selling LeJeune’s patented TNA® Fastening System into the Canadian steel construction market. With locations in Montreal, Edmonton, [...]

Press Release – LeJeune Names Boulons Plus Exclusive Canadian Distributor2018-08-07T14:17:05-05:00

KCS-Redland Bridge

This 2,100-foot KCS-Redland Bridge, operated by Kansas City Southern Railway, was the first major steel-deck railway bridge in the United States and weighs approximately 2,400 tons. After experiencing issues with critical bolted connections on the Arkansas River Bridge near Redland, Oklahoma, the Engineering Firm Wiss, Janney, Elstner & Associates examined and tested these connections [...]

KCS-Redland Bridge2018-03-07T15:34:04-05:00

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 [...]

ASTM F3148 Standard Specification for TNA2018-02-15T09:53:07-05:00

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 [...]

CoreBrace Uses TNA® Bolts for BRB Brace Testing2018-02-15T10:03:20-05:00

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 Temporary Bolting2017-03-13T00:38:31-05:00

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® [...]

TNA® Fastening System For High-Strength Galvanized Application2018-02-15T10:14:14-05:00

ASTM F3148 Specification Published for TNA®

Beginning September 25th, 2015 ASTM International officially recognized the TNA Fastening System with it's own specification;  ASTM F3148-15 Standard Specification for High Strength Structural Bolt Assemblies, Steel and Alloy Steel, 144ksi Minimum Tensile Strength, Inch Dimensions. For us, this is a pinnacle moment in the development process.  No longer is TNA just a great idea.  [...]

ASTM F3148 Specification Published for TNA®2017-11-30T23:38:54-05:00

First TNA® Project Nearly Complete

After nearly 4 years of research and development, the first TnA® project got under way this summer. This 120,000 square foot manufacturing plant uses 3/4" TnA® Fasteners for all the bolted connections. Through the completion of the plant and office structures, the contractor and erection team have been praising the efficiency, accuracy, and ease of use of [...]

First TNA® Project Nearly Complete2017-03-13T00:45:51-05:00