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Lag Bolts Manufacturers and Suppliers

IQS Directory is a top industrial directory listing of leading industrial lag bolt manufacturers and suppliers. Access our comprehensive index to review and source lag bolt manufacturers with preview ads and detailed product descriptions. These lag bolt companies can design, engineer and manufacture lag bolts to your specifications and application need. A quick and easy to use request for quote form is provided for you to contact these lag bolt manufacturers and suppliers. Each company has detailed profile information, locations, phone number, website links, product videos and product information defined. Read customer reviews and product specific news articles. We are the right resource for your information requirement whether its for a manufacturer of lag bolt fasteners, lag bolt threads, large lag bolts.

  • Fairfield, NJ 800-272-3673

    Our company has a reputation for superior products, customer service, and dependability. All our fastener products are built to last, and we know that our customers appreciate our dedication to using the best materials and manufacturing techniques. If you would like to learn more about us, contact us by phone or email, or stop by our website today!

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  • Jefferson, OH 888-536-3674

    Our expertise in making forged bolts means that we make the industry standard when it comes to lag bolts. We work to make specialized and unrivaled products across the board. Some of the various products we cover are lag bolts, anchor bolts, eyebolts, nut eyebolts, and many more. We work to benefit our clients and serve at your convenience. We also make forgings and fasteners. For more information on our lag bolts, call us today!

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  • Winston-Salem, NC 800-642-0921

    From our inventory of over 130,000 different fasteners, we know precisely which ones are right for your application. We test them for material composition and measurement accuracy. With our Vendor Management Inventory service (VMI) our Service Technicians monitor your needs and keep you fully supplied at all times. Our ISO 9001 and AS9120B certifications helps us maintain system standards that ensure the fasteners we supply are the highest quality parts available.

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  • Birmingham, AL 800-695-3511

    Serving construction & industrial needs since 1980. Birmingham is a master distributor & importer of packaged & bulk threaded fasteners & anchors, offering government approved screws, nuts, bolts & all types of industrial anchors, including sleeve anchors, plastic anchors, expansion shields, chemical anchors, toggles & much more! Your complete source – even custom & contract packaging to your specs.

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  • Clifton, NJ 866-463-2910

    As a full line fastener source, we have industrial bolts. With 100 million fasteners to choose from — steel, stainless, brass, titanium and other exotics — the choice is endless. See our anchor bolts, eye bolts, carriage, machine, lag, flange, socket head, step, structural, swing, tamper proof and more.

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  • Macedonia, OH 330-468-3300

    At SC Fastening Systems, it is our company's goal to be your number one source for your fastening needs. Our product line includes fasteners, bolts, sockets, threaded rod & studs, nuts, washers, screws, anchors, pins, and rivets. For more information about our capabilities, contact us today!

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Lag Bolts Industry Information

Lag Bolts

A lag bolt is a mechanical fastener with a threaded body that is driven through two adjacent surfaces for the purpose of adjoining them securely. Also known as a lag screw, this piece of hardware is most often used to link wooden elements with other wooden parts or concrete foundations. Lag bolts are generally large, heavy duty and often industrial bolts, though smaller variations are available for use in furniture and cabinetry industries.

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Applications of Lag Bolts

Popular in construction, masonry, locomotive, mining and civil engineering industries lag bolts are used as fasteners at integral joints of such structures as bridges, railway trestles, decking and even barn construction. Wooden components such as posts and beams are commonly connected with these devices as they offer an extremely secure connection without causing significant damage to the woodwork.

Lag Bolt Manufacturing Process

The manufacturing process used to create lag bolts is similar to that of other bolt types. A steel or bronze wire rod is first heated consistently for an extended period of time and all rust particles are removed. If needed, the metal is coated for added protection. Cold forging is then used to shape the rod at room temperature and the rod is forced through dyes at a high pressure to be shaped into long perfectly round rods. Once cut down to the desired length, a second dye shapes the head of the lag bolt which may be either square or hexagonal. Cold forging using high pressure rollers is then used to press in the thread pattern. The finished course-pitched lag bolt is then ready for use in a variety of applications. A pilot hole is made in the first piece of wood or other material and the bolt is inserted. A wrench, spanner or pliers are then used to drive the screw into the second bit of material. The threading bites into the wood to hold the two components together. During installation, caution must be used so as not to damage the head of the screw. The head provides compression while preventing the bolt from being driven completely through both materials. In some instances a washer is also used to protect softer lumbar, ensuring that the head will not sink into the wood. It is important to consider the materials to be fastened as well as the strength and corrosion resistance required of the bolt materials. Other considerations include the bolt length and diameter.

Lag Bolt Materials

To ensure a continually high degree of clamping force when tightened, lag bolts are made of strong materials that are not likely to stretch, expand or crack over time. The specific material depends on the intended use and environmental pressures to be inflicted upon the bolt. Zinc-plated steel and hot dipped galvanized steel are popular choices as they are low cost and still offer some resistance to rust. Stainless steel and silicone bronze, however, offer heightened protection against the elements as they are highly resistant to corrosion from moisture and chemicals that may be present in some industrial settings.



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Lag Bolt Informational Video