OEM High-Strength Lag Screws from China Suppliers | Durable, Rust-Free, Tested to 3,200 lbs - Factory Direct Supplier, Factory

Introducing our high-quality industrial components, designed to withstand incredible shear strength tested up to 3,200 lbs. Manufactured in China, our products guarantee performance with no bending, breaking, or rusting, making them the ideal choice for durability. Our unique threading technology ensures a secure grip where others might strip, providing reliable connections every time. As trusted suppliers from our state-of-the-art factory, we prioritize excellence and longevity in every piece we produce. Choose us for your industrial needs and experience the superior quality that makes a difference

Product Description

Lag Screws technical drawing illustration
Lag Screws — Technical Drawing

Frequently Asked Questions
? What are lag screws used for?
Lag screws, also known as lag bolts, are heavy-duty fasteners used to join large pieces of lumber or to fasten wood to other materials. They are commonly used in construction, decking, framing, and structural applications where a strong, secure connection is required.
? What is the difference between a lag screw and a regular screw?
Lag screws are significantly larger and stronger than standard wood screws. They feature a hex or square head that requires a wrench or socket for installation, coarse threading designed to grip thick wood, and are intended for heavy-load structural connections rather than light-duty fastening tasks.
? Do lag screws require a pilot hole?
Yes, it is strongly recommended to pre-drill a pilot hole before installing a lag screw. This prevents the wood from splitting, reduces the torque required during installation, and ensures the screw is properly aligned. The pilot hole diameter should typically be about 75% of the screw's shank diameter.
? What materials are lag screws made from?
Lag screws are commonly manufactured from carbon steel, stainless steel, or galvanized steel. Stainless steel and hot-dip galvanized lag screws are preferred for outdoor or moisture-exposed applications due to their superior corrosion resistance and long-term durability.
? What sizes do lag screws come in?
Lag screws are available in a wide range of sizes. Diameters typically range from 1/4 inch to 1 inch (approximately 6mm to 25mm), and lengths can vary from 1 inch up to 6 inches or more. The appropriate size depends on the load requirements and the thickness of the materials being fastened.
? Can lag screws be used in outdoor or structural applications?
Yes, lag screws are well-suited for both outdoor and structural applications. For outdoor use, it is important to select corrosion-resistant options such as stainless steel or hot-dip galvanized lag screws to ensure longevity and maintain structural integrity when exposed to weather conditions.

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