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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.

  • Hackensack, 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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  • Alpharetta, GA 877-889-1017

    With machines capable of #6 screws up to 5/8" x 5" bolts, Engineered Parts Sourcing manufactures a wide variety of both standard & non-standard inch & metric bolts to all domestic & international standards. See website for bolt options. ISO 9001:2000 registered with great secondary services, finishes, stocking JIT programs & rapid response. Quality assurance, cost effectiveness & on-time delivery.

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  • Baltimore, MD 410-247-7273

    ROBNET has been in business since 1985 and we are a certified minority business in most states on the Eastern Seaboard. We are also certified in most municipalities in this region. We bought our 1st building with 25,00 square feet and plenty of office and warehouse space. We were able to consolidate both warehouses into one and we are now located on a major thoroughfare in Baltimore City. ROBNET has grown into a full-service fastener distributor and a major player in our industry. ROBNET opened a branch in York, PA and bought a small tool and fastener company in York bringing new customers and new ROBNET team members.

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  • Maywood, IL 708-450-9301

    We carry many parts and products for our customers, including fasteners, bolts, screw machine products, and a whole lot more. We offer parts manufactured from both ferrous and non-ferrous metals. We are committed to quality and service to give you the best experience possible. You can visit our website for details or give us a call to learn more! We look forward to hearing from you soon!

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  • Painsville, OH 800-680-3600

    Dyson has over 100 years of experience in manufacturing industrial fasteners including bolts, screws, washers, construction accessories and custom forged and machined products. We carry a wide variety of standard fasteners as well as offer custom production, from a few parts up to a large order.

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  • Wheeling, IL 224-434-2290

    Our hardware range includes threaded as well as non-threaded products, such as bolts, screws, washers, hose couplings, and clamps. Manufactured for use in construction tools, engines, furnaces, hose reels and many other applications. These items are available in both standard and custom sizes. We can provide UNC, UNF, ACME, and several other thread forms on our threaded fasteners.

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businessIndustry 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.

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. 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. 

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 Bolts
Lag Bolts - Ford Fasteners, Inc.