Lag bolt
A heavy-duty fastener used to secure wood, metal, or other materials, often requiring a pre-drilled hole for installation.
A lag bolt is a heavy-duty fastener with a hexagonal head used to connect heavy materials, providing strong and secure connections in wood or metal. It is crucial for optimizing assembly, enhancing load distribution, and supporting structural integrity. By providing a reliable and effective fastening solution, lag bolts support efficient construction, improve joint performance, and contribute to successful project delivery by ensuring that components are well-secured, aligned with design specifications, and capable of meeting performance criteria and client expectations.
Used in a sentence
Lag bolts were used to attach the ledger board to the house.
Synonyms/variation
Lag Screw
Stay updated on what’s happening in construction.
Subscribe to Blueprint, Procore’s free construction newsletter, to get content from industry experts delivered straight to your inbox.
Learn MoreLearn more about Lag bolt

Using Construction Benchmarking for Better Project Outcomes
Successful construction teams consistently work toward getting better at what they do — producing better quality projects, reducing waste and delivering work on time and on budget. Construction benchmarking provides baseline metrics that teams can use to measure their own activities against past performance or industry standards, allowing them to identify areas for improvement. Benchmarking […]

Tackling the Top 10 Construction Industry Issues
The construction industry is constantly evolving, bringing both opportunities and challenges. Companies must navigate an array of construction industry issues — from workforce shortages to integrating new technologies into their operations. Successfully managing these challenges isn’t always about avoiding them, but rather about understanding their impact and preparing accordingly. In this article, we’ll examine 10 […]

Mission Critical Construction: Strategies for Success
Mission critical construction involves building structures whose functions cannot afford to fail, as any disruptions can lead to significant consequences for society. Keeping data centers, hospitals, power plants and other vital facilities operational is imperative, as any interruption could cause widespread damage and even imperil lives. These projects demand high levels of planning, skill and […]

Construction Quality Control Manager: Mastering the Role
Construction Quality Control Managers (QCMs) use their knowledge of construction and exceptional organizational skills to make sure that the final project deliverables meet all stakeholder expectations as well as industry and quality standards. Quality control managers make sure projects are on time and on budget by proactively catching issues to avoid mistakes and costly rework. […]
How can we improve this glossary entry?
By clicking this button, you agree to our Privacy Notice and Terms of Service.