Nucor Skyline

Geostructural Solutions for Advanced Needs: Anchor Bolts

As part of our suite of geostructural solutions, anchor bolts ensure the continued safety and operability of the world's most important engineering projects. Heavy civil construction often gets taken for granted by the people that rely on it. Those working behind the scenes, however, understand that everything rests on high-performance anchors.

Nucor Skyline is the complete source for wind turbine foundation anchor bolts and accessories, regardless of hub height or tower height. We provide North America's most advanced construction projects with tower bolts and foundation anchors that let architects and builders solve complex engineering challenges while outperforming expectations. We're honored to play such an integral role in the future of renewable energy and the advancement of sound geotechnical engineering.

Rock Bolts and Anchor Bolts

Rock bolts support the face of a rock slope or cut. When securing the face of an excavation, rock bolts are used to support the unstable rock on the surface to the more stable rock behind the excavation. Roof bolts anchor the overhead portion of the tunnel excavation to the more stable rock above it. Anchor bolts serve to connect a structure to its foundation and can be used when securing wind turbines, tower structures, sign posts, stairways, and buildings.


  • Threaded bar rolling facilities which manufacture anchor bolts to strict tolerances
  • Grade 75 and Grade 150 threaded bars show minimum relaxation under tension
  • Large diameter anchor bolts can be designed to meet minimum yield strengths of up to 847 kips, with an ultimate strength of 1,059 kips or over 500 tons

Why Does Using Better Anchor Bolts Matter? 

Anchor bolts unite modern structures from the top of the utility towers to their foundations. When building wind turbines, utility towers, large billboard structures, stairways, and tall towers, these fasteners prove critical to lasting foundations and superstructures alike.

Although the underlying technology might seem straightforward, it requires ingenuity and technical skill to create durable, stable anchor bolts. The smallest deviations in the manufacturing process can result in hidden weaknesses that inevitably lead to catastrophic failures. Similarly, lax sourcing of structural steel and other production materials might introduce defects that eventually contribute to failures and irrecoverable property losses — particularly in high-strain applications, such as wind turbines and rock face stabilization.

Nucor Skyline Anchor Bolts Make Structural Stability a Given 

Building better engineering projects starts with using superior structural technology. Nucor Skyline threaded bar, hardware, and accessories are rigorously designed, expertly fabricated, and adhere to strict quality control guidelines to ensure they meet the most demanding requirements without faltering.

Where can you find Nucor Skyline hardware products? Our Grade 75, 80, 90, and 150 anchor bolts get the job done flawlessly in wind towers and steel towers that routinely face the perils of turbulence, environmental degradation, and mechanical vibrations. Our PTI class I- and II- anchors serve as rock-solid mounting points with bars up to 3-1/2 inches in diameter, depending on the grade, and exhibit consistent loading behaviors under a range of conditions.

Nucor Skyline anchor bolts are also essential players in countless rock-face stabilization projects across North America. They permit the reinforcement of sloped surface layers in projects such as excavations — where the most stable rock lies behind the exposed surface and shallow aggregates. By forming a reliable connection between these outer layers and the steadier materials below, Nucor Skyline hardware dramatically increases the viability, safety, and cost-efficiency of projects that push modern geotechnical engineering to its limits.

Could Nucor Skyline Anchor Bolts Shore Up Your Next Critical Engineering Application?

Whether you're building a utility tower, blazing a path for a new transit route, or temporarily stabilizing a rock face to improve worksite safety, your work is only as good as the foundation it rests on. Unfortunately, site conditions are rarely amenable to traditional construction techniques — and the dangers of oversights are equally unforgiving.

Nucor Skyline's anchor bolts improve your odds of creating something that lasts. With an experienced production team that specializes in helping North America's construction leaders reap the rewards of enhanced geotechnical performance, we're proud to offer a comprehensive selection of anchor bolts and bar reinforcing accessories. Find out how we can make your next engineering project more structurally sound by getting in touch with a Nucor Skyline representative today.

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