Products Nord-Lock Original Washers X-series Washers Steel Construction Washers Wheel Nuts Combi Bolt Washers Customized Solutions Quicklinks Technology Quality CAD Downloads Torque Guidelines Downloads Superbolt Tensioners Flexnuts Customized Solutions EzFit HyFit Quicklinks Technology Quality Downloads Expander System Nut and Washer Bolt Fastener with Washer Bolt Fastener with Recessed Washer Through Bolt Design Flat Head Fastener Multi-Bolt Arrangement Stepped Pin Offshore Pin Customized Solutions Quicklinks Technology First Fit Aftermarket Downloads Expander System Order Online Boltight Standard Bolt Tensioners Subsea Tensioners Typhoon Tensioners Echometer & Echometer+ TSR Tensioners Xtra Range Foundation Tensioners Hydraulic Nuts Closure Systems, Rotor & Casing Tools Accessories Engine Tool Sets Customized Solutions Quicklinks Segments Technology Quality Downloads Industries Construction Forestry & Agriculture Machine Building Manufacturing & Processing Mining & Minerals Oil & Gas Power Generation Railway Shipbuilding & Marine Steel, Forging & Other Presses Transportation Miscellaneous Services Download Center Performance Services Technical Support Insights About Nord-Lock Group Lifetime Warranty Our History Contact Expander System Online Nord-Lock Superbolt Expander System Boltight No results found :-( Secure Bolting Solutions Creating a safer world by focusing on the integrity of mechanical solutions that are critical to our way of life Here is our story How can we help you? Download Center Insights Technical Support Lifetime Warranty No results found :-( Explore our solutions by brand Nord-Lock wedge-locking technology secures bolted joints exposed to severe vibration and dynamic loads. Superbolt technology eliminates unsafe and time-consuming bolting methods The Expander System provides a simple and cost-effective solution to lug wear Boltight tensioning tools provide fast, accurate and safe tightening of multiple bolts simultaneously Serving industries worldwide Nord-Lock Group has the technologies you need to solve your complex bolting challenges, whatever your industry. We have decades of experience successfully solving industry-specific challenges around the world and you can rely on us to solve yours. Learn more about our solutions by selecting your industry below. Construction Construction Easy to use solutions that ensure the structural joints on your bridges and buildings last Read more Forestry & Agriculture Forestry & Agriculture No more lug wear, so you can avoid downtime and keep your machines working in the fields and forests Read more Machine Building Machine Building Bolted connections that work as hard as your machines do Read more Manufacturing & Processing Manufacturing & Processing Maximise production and minimise downtime with truly fitted bolts that won’t budge Read more Mining & Minerals Mining & Minerals Heavy-duty technology to withstand the demanding conditions of heavy-duty machinery Read more Oil & Gas Oil & Gas Secure solutions that are quick to install and replace, ensuring your safety even in the harshest conditions Read more Power Generation Power Generation Bolt tightening to support state of the art applications in all sectors of power generation Read more Railway Railway Bolting solutions that never come loose, no matter how fast you’re going Read more Shipbuilding & Marine Shipbuilding & Marine Small and efficient products that can carry the load of your large cargo ships and tankers Read more Steel, Forging & Other Presses Steel, Forging & Other Presses Specially designed steel construction products that conform to the strict requirements of the industry Read more Transportation Transportation Whether you need a lightweight solution for a space satellite or a wheel-locking solution for heavy duty vehicles, our products will get you from A to B Read more Miscellaneous Miscellaneous A solution for bolted joint challenges in each and every industry Read more Construction Forestry & Agriculture Machine Building Manufacturing & Processing Mining & Minerals Oil & Gas Power Generation Railway Shipbuilding & Marine Steel, Forging & Other Presses Transportation Miscellaneous More insights and references Why do bolts loosen? Bolt loosening can have profound consequences. One loose bolt can bring a whole production plant to a standstill, while in other applications loose bolts can pose a significant safety hazard. So, what are the main causes of bolt loosening? Read more How bolts are made? Here is the manufacturing process Bolts can come in a wide range of different sizes and shapes, but the production processes may vary depending on how advanced the bolt designs are. Read more Hydraulic tensioning or torquing - that is the question Which is the best method for controlled tightening of a bolted joint? Bolted plays hydraulic torquing off against hydraulic bolt tensioning. And the winner is… Read more The history of the bolt Bolts are one of the most common elements used in construction and machine design. Yet, have you ever stopped to wonder where they actually came from? Read more Bespoke bolt tensioners secure deep-water pipelines Boltight supplies tailormade bolt tensioning equipment for structural split repair clamps to Subsea Innovation in the UK. Read more New horizons with the Expander System Boskalis has chosen Expander System as their supplier of pivot pins for one of their biggest dredgers – backhoe dredger Baldur. Read more Fusion Power Swiss Plasma Center's problems with vertical, horizontal and axial vibrations are solved with the installation of Superbolt expansion bolts. Read more Top 10 tips for secure bolting Achieving the safest, most secure bolted connection involves many factors. To help you achieve the best possible results we have summarized into ten bolting tips. Read more On site, offshore, under pressure Dutch company Heat Solutions on Site BV (HSOS) is a leading service provider in the metal sector. Their services include heat treatment and machining on site. 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Here you can find all the important product information and industry insights you need, quickly and easily. Since our website is brand new, you may encounter some technical difficulties. Please bear with us while we fix the last remaining issues. If you have trouble navigating the site, do not hesitate to let us know by sending an email to info@nord-lock.com Thank you for your understanding and we hope you enjoy our new website! Secure connections Looking for the right solutions for your bolting needs? Get more than just the products you need Technical support Searching for certificates, data sheets or manuals? Download now Let us help you solve your bolting challenges Contact us We use cookies to make it easier for you to use our website. They allow us to recognize our registered users, count visitor numbers and find out how they navigate the site; helping us make changes so you can find what you’re looking for faster. Continue The Nord-Lock Group is a world leader in secure bolting solutions. Our mission is to safeguard human lives and customer investments. More about us Select country Head Office: Nord-Lock International AB Tel: +46 40 602 46 00 Email: info@nord-lock.com The Nord-Lock Group has a worldwide representation Find a local office Nord-Lock Superbolt Expander System Boltight Download Center Performance Services Technical Support About Nord-Lock Group Contact Us Construction Forestry & Agriculture Machine Building Manufacturing & Processing Mining & Minerals Oil & Gas Power Generation Railway Shipbuilding & Marine Steel, Forging & Other Presses Transportation Miscellaneous © 2018 Nord-Lock International AB Privacy Cookie Policy Legal Disclaimer Close Welcome to the Nord-Lock Group Secure bolting solutions for your bolting challenges Go to Global site Go to United States Select other country Select your country Global site Brazil / Brasil China / 中国 Czech Republic / Česká republika Denmark / Danmark Finland / Suomi France Germany / Deutschland Italy / Italia Japan / 日本 The Netherlands / Nederland Korea / 대한민국 Norway / Norge Poland / Polska Sweden / Sverige Spain / España United Kingdom United States