Generated by All in One SEO v5.0.1.1, this is an llms.txt file, used by LLMs to index the site. # TNA® Torque + Angle Fastening System Get Your Tight Right ## Sitemaps - [XML Sitemap](https://www.tightenright.com/sitemap.xml): Contains all public & indexable URLs for this website. ## Posts - [TNA® News](https://www.tightenright.com/tna-news/) - The latest news on LeJeune Bolt's revolutionary TNA Torque + Angle Fastening System and its cost-effective impact on bolting. - [Privacy Policy](https://www.tightenright.com/privacy-policy/) - Privacy Policy Effective Date: May 25, 2018 At LeJeune Bolt Company, we value your privacy and are committed to protecting your personal information. This Privacy Policy explains what information we collect, how we use it, who we share it with, and the choices you have regarding your information. Information We Collect We may collect the - [Attend A Webinar](https://www.tightenright.com/attend-a-webinar/) - Learn what the TNA 144® Fastening System will do for your business by attending one of our convenient online webinars. - [ASTM F3148 Standard Specification for TNA](https://www.tightenright.com/astm-f3148-standard-specification/) - Within the ASTM F3148 standard you will find all of the information required to specify and implement TNA. - [Sideplate Plus Approval](https://www.tightenright.com/sideplate/) - F3148 TNA Bolts approved for use in Sideplate Plus configurations, AISC 358-16, Supplement No. 2 - [Combined Method and TNA 144 Bolts Added to RCSC 2020 Edition](https://www.tightenright.com/rcsc-combined-method/) - TNA Fastening System is now approved for use by the Research Council on Structural Connections. Specify with confidence. - [Press Release - LeJeune Names Boulons Plus Exclusive Canadian Distributor](https://www.tightenright.com/boulons-plus-canadian-distributor/) - LeJeune Bolt Names Boulons Plus Exclusive Canadian Distributor of TNA Torque + Angle Fastening System - [KCS-Redland Bridge](https://www.tightenright.com/kcs-redland-bridge/) - Learn how the ASTM F3148 Torque and Angle Fastening System helped rehabilitate a critical rail bridge over the Arkansas River. With limited work space and hardly any exposure to light, the Torque and Angle Fastening System performed just right, every time. - [TNA® Fastening System Wins Hot Product Award at NASCC](https://www.tightenright.com/tna-wins-hot-product-award/) - LeJeune Bolt was honored to be awarded the 2013 Hot Products Award at NASCC for our TNA Fastening System. - [TNA® Fastening System For High-Strength Galvanized Application](https://www.tightenright.com/high-strength-galvanized-application/) - When structural bolts for high strength applications require a coating our TNA® Fastening System is an ideal choice using ASTM F3148 certified TNA 144 bolts. The mechanically galvanized TNA 144 bolt produced tensions equal to A490. - [TNA | Torque + Angle Installation Method](https://www.tightenright.com/torque-angle-installation-method/) - An overview of the TNA Torque + Angle Installation Method for LeJeune TNA 144 Bolts using TAe tools to ensure consistent snug tight and precise final tensioning in any bolting application. - [CoreBrace Uses TNA® Bolts for BRB Brace Testing](https://www.tightenright.com/corebrace-testing/) - Learn how specifying ASTM F3148 for seismic applications can improve bolt installation and connection surety. Using LeJeune Bolt TAe tools and TNA 144 bolts, the snug process is controlled precisely every time, ensuring the bolts are not under or over snugged and that all plies are in contact prior to final tensioning. - [TNA® Trade Show Schedule](https://www.tightenright.com/tradeshow-schedule/) - Visit us at an upcoming trade show to learn more about the cost-saving TNA Fastening System. - [ASTM F3148 Specification Published for TNA®](https://www.tightenright.com/astm-f3148-specification/) - ASTM International approves and publishes LeJeune Bolt Company's TNA Fastening System under the designation ASTM F3148-15. - [First TNA® Project Nearly Complete](https://www.tightenright.com/first-tna-project/) - Discover the project to first use LeJeune's TNA Fastening System. - [TNA® Fastening System For Temporary Bolting](https://www.tightenright.com/temporary-bolting/) - Install and remove temporary structural bolts quickly and reliably from a single side with LeJeune's TNA Fastening System. - [TNA® 144 Bolts in stock](https://www.tightenright.com/tna144-bolts-in-stock/) - LeJeune Bolt Company has a complete inventory of TNA bolts. 3/4" - 1 1/8" Diameter in plain and galvanized finishes. ## Pages - [TNA® | Home](https://www.tightenright.com/) - LeJeune Bolt's TNA 144 Torque + Angle Fastening System is the ASTM F3148 standard and the Combined Method (Torque+Angle) is an approved RCSC installation method - [Tools](https://www.tightenright.com/tools/) - Our TAE Series tools provide control and accuracy unmatched by any other system on the market through applied Torque for the snug operation and Angle (nut rotation) for the final tensioning operation using TNA 144 bolts. Designed for use exclusively as part of our TNA® Torque + Angle Fastening System. - [Bolts](https://www.tightenright.com/bolts/) - The stronger TNA 144 structural bolt grade is designed to allow for a single bolt grade to be used in all connection types using the Torque + Angle Installation Method. Sold as a matched assembly including bolt, nut, and washer and available as Type 1 and Type 3 in plain or galvanized finishes in a variety of sizes - [TnA® On-Site Support & Training](https://www.tightenright.com/on-site-support-training-144/) - We have a variety of Support and Training options to respond to local, national, and even international project support. Our TNA® Mobile Support Units arrive on-site to ensure your staff is thoroughly trained and ready to go prior to the first bolt being installed. - [Projects](https://www.tightenright.com/projects/) - Find out the cost-savings benefits of using LeJeune Bolt's revolutionary TNA Torque + Angle Fastening System on your projects. Stronger 144ksi bolts, single-installer tools, accurate snug tightening and precision final tensioning. It's the better way to bolt! - [News](https://www.tightenright.com/blog-medium/) - News Privacy PolicyPrivacy Policy Effective Date: May 25, 2018 At LeJeune Bolt Company, we value your privacy and are committed to protecting your personal information. This Privacy Policy explains what information we collect, how we use it, who we share it with, and the choices you have regarding your information. Information We Collect We may - [TnA® Learn More](https://www.tightenright.com/learn-more/) - Learn MoreWebinarMeet online for a demonstration of the amazing TNA144 Fastening System.Fastest way to find out moreLearn what TNA144 will do for your business at one of our conveniently scheduled webinars.1: CHECK THE SCHEDULE2: JOIN THE WEBINARTrade ShowSee the system in action at a major city near you.Trade Show Schedule On SiteToo many people to shuttle? We'll bring - [TnA® Maintenance Mode](https://www.tightenright.com/maintenance-mode/) - Sorry for the inconvenience. The site is briefly unavailable while updates are being performed. - [TnA® FAQ Page](https://www.tightenright.com/faq-page-144/) - [TnA® Benefits](https://www.tightenright.com/tna-benefits/) - TNA 144 BenefitsOverview Precise Guaranteed Installations Every Time Single Tool for Snug and Final Angle Single Operator Single-Sided Installation Simpler Safer Significantly Reduced Installation Costs Owners Guaranteed Final Tension No Pinch Point High Controllable Tension Allows for Design Using Fewer Bolts High Controllable Tension Allows for Drilling Fewer Holes MG Coated Weathering Steel offers Superior Corrosion - [TnA® Contact Page](https://www.tightenright.com/tna-contact-page/) - [TnA® Tradeshow Contact Page](https://www.tightenright.com/tna-contact-tradeshow/) - [TnA® Lunch & Learn Contact Page](https://www.tightenright.com/tna-lunch-learn-contact-page/) - Lunch & Learn Registration [contact-form-7 id=”6912″ title=”Lunch & Learn – Lunch Order Form”] - [Shop](https://www.tightenright.com/shop/) - [Checkout](https://www.tightenright.com/checkout/) - [woocommerce_checkout] - [My Account](https://www.tightenright.com/my-account/) - [woocommerce_my_account] ## Events - [University of Florida Wins 2025 Student Steel Bridge Competition](https://www.tightenright.com/event/university-of-florida-wins-2025-student-steel-bridge-competition/) - About the Competition The Student Steel Bridge Competition is an annual competition that challenges student teams to develop a scale-model steel bridge. The team must determine how to fabricate their bridge and then plan for an efficient assembly under timed construction at the competition. Bridges are then load tested and weighed. The bridge must span - [2019 NASCC: The Steel Conference](https://www.tightenright.com/event/world-of-steel/) - North American Steel Construction Conference - [47th Annual SEAA National Convention](https://www.tightenright.com/event/steel-erectors-association-of-america-seaa/) - 47th Annual Steel Erectors Association of America National Convention - [Webinar-February](https://www.tightenright.com/event/webinar-february/) - This 45-minute webinar will include an overview of the TNA Fastening System, The Torque + Angle Installation Method, and benefits of the system. A question and answer session will follow. Presenter Jeff Greene – Vice President REGISTER×Webinar Registration [contact-form-7 id=”6808″ title=”Webinar Registration”] CloseI’m interested in a private, company-wide webinar instead. - [Webinar-March](https://www.tightenright.com/event/webinar-march/) - This 45-minute webinar will include an overview of the TNA Fastening System, The Torque + Angle Installation Method, and benefits of the system. A question and answer session will follow. Presenter Jeff Greene – Vice President REGISTER×Webinar Registration [contact-form-7 id=”6808″ title=”Webinar Registration”] CloseI’m interested in a private, company-wide webinar instead. - [Webinar-April](https://www.tightenright.com/event/webinar-april/) - This 45-minute webinar will include an overview of the TNA Fastening System, The Torque + Angle Installation Method, and benefits of the system. A question and answer session will follow. Presenter Jeff Greene – Vice President REGISTER×Webinar Registration [contact-form-7 id=”6808″ title=”Webinar Registration”] CloseI’m interested in a private, company-wide webinar instead. - [North American Steel Construction Conference (NASCC)](https://www.tightenright.com/event/north-american-steel-construction-conference-nascc/) - Visit us at Booth 6107 in San Antonio, TX. ## Portfolio - [Cooling Platform](https://www.tightenright.com/portfolio-items/cooling-platform/) - Cooling Platform – Florida Unlimited Welding Inc. TNA Fastening Systems projects come in all shapes and sizes. While widespread use is taking hold, we also have a large number of customers specifying it for application use. It might be a small job, like this cooling platform, or an application within a much larger project that - [Umauma Stream Bridge](https://www.tightenright.com/portfolio-items/umauma-stream-bridge/) - Umauma Stream Bridge – Hilo, Hawaii The structural engineer for the project originally specified mechanically galvanized F1852 tc bolts at the erectors request. But he was concerned with the nut lubricant on tc bolts effecting the final paint system when topcoating. When a bridge requires a topcoat the substrates of the painted surfaces must be free of - [Unytite Manufacturing Plant](https://www.tightenright.com/portfolio-items/unytite-manufacturing-plant/) - Unytite Manufacturing Plant – LaSalle, Illinois Unytite, Inc is not only our manufacturing partner for our TNA Bolt Assemblies, they’re a user. Through the research and development stage Unytite was an integral part of the design development. So when the system was ready they wanted to be the first to put it into use. Blue - [Parry Bridge Rehabilitation](https://www.tightenright.com/portfolio-items/parry-bridge-rehabilitation/) - Parry Bridge Rehabilitation – Chatham, Ontario Canada As the first bridge to cross into Chatham, the Parry Bridge is one of the busiest in the Chatham-Kent area of Ontario. And because of the traffic volume and age the Parry Bridge was recently rebuilt. Rather than replace the historic structure the decision was made to rebuild - [Allegro Senior Living](https://www.tightenright.com/portfolio-items/allegro-senior-living/) - Allegro Senior Living – Winter Park, FL The fabricator was looking to move on from hex bolting to find a more efficient method. After considering all available options they made the decision to skip over using tension control bolts and go straight to the latest technology; LeJeune’s Torque and Angle Fastening System. By performing both - [Honolulu Rail System](https://www.tightenright.com/portfolio-items/honolulu-rail-system/) - Honolulu Rail System – Honolulu, Hawaii 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 - [OATI South Campus Microgrid](https://www.tightenright.com/portfolio-items/oati-south-campus-microgrid/) - OATI South Campus Microgrid – Minneapolis, Minnesota 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 - [Mercy Health](https://www.tightenright.com/portfolio-items/mercy-health/) - Mercy Health – Rockford, Illinois The fabricator had a unique application that required some connections to be left in the snug tight condition for an extended period of time, up to 6 months, prior to pretensioning. The project called for tension control bolts to be used in all connections. However, the concern about leaving tc - [Lock and Dam 17](https://www.tightenright.com/portfolio-items/lock-and-dam-17/) - Lock and Dam 17 – New Boston, Illinois The U.S. Army Corp of Engineers was looking for a better way to perform lock and dam maintenance when they discovered our ASTM F3148 TNA Fastening System. The movable gates in the lock system are steel structures designed to hold back the pressure of the water and - [Johnson Street Bridge](https://www.tightenright.com/portfolio-items/johnson-street-bridge/) - Johnson Street Bridge – Victoria, British Columbia Canada Slated for opening in March 2018, the new Johnson Street Bridge will be the signature structure in Victoria, British Columbia as well as a vital link between the east and west sides of the city. While discussing our ASTM F3148 TNA Fastening System for another project, the contractor - [General Motors](https://www.tightenright.com/portfolio-items/general-motors/) - General Motors – Parma, Ohio After being invited to present our TNA Torque + Angle Fastening System at the exclusive GM Facilities Steel Construction Symposium, General Motors was excited to put the system to the test. This first GM application was an extensive crane rail retrofit. The work required a weekend shut down of the - [Kansas City Southern Railways](https://www.tightenright.com/portfolio-items/kc-southern-railways/) - KCS Redlands Bridge – Spiro, Oklahoma This unique project highlights a few of the many benefits of our TNA Torque + Angle Fastening System. The Redlands Bridge, operarted by Kansas City Railway, is 2,100 foot long and was the first steel deck railway bridge constructed in the United States. This projects had a number of ## FAQs - [Do the tools need to be calibrated regularly?](https://www.tightenright.com/faq-items/do-the-tools-need-to-be-calibrated-regularly/) - The TA Series tools use a combination of torque for snugging and angle for final installation. Each of these functions should be calibrated at least annually. A quick way to verify snug torque is to use one of our Digital Torque Meters. The DTM can be easily attached to the TA Series Wrenches and will - [How do I specify TNA® for my project?](https://www.tightenright.com/faq-items/how-do-i-specify-tna-for-my-project/) - Simple. Download and review the Product Submittal. Call out TNA® by name in your project documents. LeJeune can provide 3 levels of technical support to help with the process and will work with your General Contractor and their sub contractors to instruct and train personnel in the application of the system. - [When I specify TNA® what design criteria should I use?](https://www.tightenright.com/faq-items/when-i-specify-tna-what-design-criteria-should-i-use/) - TNA® can be used and specified in a few ways. The first way is a direct replacement for ASTM A325 and F1852 bolts. TNA® bolts are made of the same raw material and conform to the same dimensional standards. So using existing A325 design criteria will apply. The other way is to use A490 design - [Will the tool fit in my connection area?](https://www.tightenright.com/faq-items/will-the-tool-fit-in-my-connection-area/) - The TA Series tools used with TNA® bolts will fall within current clearance guideline found in AISC Manual Table 7. Stagger and Clearance drawings are available for download. - [Will I pay more if I use TNA®?](https://www.tightenright.com/faq-items/will-i-pay-more-if-i-use-tna/) - The short answer is no. TNA® is made from readily available raw material and doesn’t require any special manufacturing practices. In fact, in some applications using TNA® can save you as much as 30% on fastener cost alone. The greatest savings can be returned when taking advantage of TNA® strength values which can reduce your - [Will the spline interfere with installation?](https://www.tightenright.com/faq-items/fusce-nisi-malesuada-in-commodo-quis-euismod-quis-orci-onteger-vitae-nisl-non-augue-ullamcorpers/) - There isn’t a fastener available that can meet 100% of the clearance issues found on jobsite every day. The spline of the TNA® bolt is within the detailing clearance recommended in the AISC Design manual, Table 7. In short, the TnA™ bolt should not interfere with bolt installation if AISC design criteria is followed for - [Why doesn’t the spline come off during installation?](https://www.tightenright.com/faq-items/why-doesnt-the-spline-come-off-during-installation/) - The TNA® bolt is a fixed spline fastener, meaning the tip will not be removed during installation. There are a few reasons for the design. Primarily the spline remains fixed to the bolt because we are performing a 2-step installation process with the TA Series Wrenches, snug tight and final installation using angle. Some other - [What is "144"?](https://www.tightenright.com/faq-items/what-is-144/) - The "144" in TNA® 144 is the minimum tensile strength of the bolts; 144ksi. A325 is 120ksi and A490 is 150ksi. Our 144 ksi tensile strength allows us to use A325 raw material but achieve A490 tension values. We get all the benefits of A325 like ductility, coating options, and low cost while gaining the ## Categories - [Design](https://www.tightenright.com/category/design/) - [TNA 144](https://www.tightenright.com/category/tna144/) - Fastening System Specs - [Webinar](https://www.tightenright.com/category/webinar/) - [Trade Show](https://www.tightenright.com/category/trade-show/) - [Bridge](https://www.tightenright.com/category/bridge/) - [Specification](https://www.tightenright.com/category/specification/) - [Temporary Bolting](https://www.tightenright.com/category/temporary-bolting/) - [Technical](https://www.tightenright.com/category/technical/) - [Archive](https://www.tightenright.com/category/archive/) - [Privacy](https://www.tightenright.com/category/privacy/) ## Tags - [Bridges](https://www.tightenright.com/tag/bridges/) - [Trade Shows](https://www.tightenright.com/tag/tradeshows/) - [TNA](https://www.tightenright.com/tag/tna/) - [Specification](https://www.tightenright.com/tag/specification/) - [Bolts](https://www.tightenright.com/tag/bolts/) - [Projects](https://www.tightenright.com/tag/projects/) ## Event Categories - [Trade Show](https://www.tightenright.com/events/category/trade-show/) - [Webinar](https://www.tightenright.com/events/category/webinar/) - [Event](https://www.tightenright.com/events/category/event/) ## Portfolio Categories - [Projects](https://www.tightenright.com/portfolio_category/projects/) - [Industrial](https://www.tightenright.com/portfolio_category/industrial/) - [Commercial](https://www.tightenright.com/portfolio_category/commercial/) - [Bridges](https://www.tightenright.com/portfolio_category/bridges/) - [Residential](https://www.tightenright.com/portfolio_category/residential/) ## FAQ Categories - [Design Process](https://www.tightenright.com/faq_category/design-process/) - [Misc](https://www.tightenright.com/faq_category/misc/) - [Pricing](https://www.tightenright.com/faq_category/pricing/) - [Technical](https://www.tightenright.com/faq_category/technical/) - [Bolts](https://www.tightenright.com/faq_category/bolts/) - [Tools](https://www.tightenright.com/faq_category/tools/) - [Engineering](https://www.tightenright.com/faq_category/engineering/)