Why the Hex Lag Bolt is Essential in Modular Buildings

Modular buildings are designed for strength, and must meet the stringent standards laid out by national building codes. Standard wood screws are used for certain elements, but the hex lag bolt plays a major role and provides the stability required for modular buildings of all shapes and sizes. What Are Hex Lag Bolts? Lag bolts […]

Modular buildings are designed for strength, and must meet the stringent standards laid out by national building codes. Standard wood screws are used for certain elements, but the hex lag bolt plays a major role and provides the stability required for modular buildings of all shapes and sizes.

What Are Hex Lag Bolts?

Lag bolts with a hex-shaped head are commonly used on wood projects. They are often formed with a gimlet point and may be fully threaded (often called hex lag screws) or formed with a shank.

Most often a hex lag bolt is used without a nut, although it’s certainly possible to use a washer and nut. Lag bolts provide great clamping force and resist loosening based on their design, even without a nut in place.

Most hex lag bolts are made from galvanized steel or zinc-plated steel, although stainless steel lags provide the optimum protection from corrosion. If used on the exterior of a modular building, a stainless steel or silicon bronze hex lag bolt should be specified for better corrosion resistance.

What Types of Modular Buildings Call For Hex Lags?

From small storage shed kits to larger modular garages and modular homes, a wide range of building designs calls for the use of hex lags.

You’ll find hex lag bolts in the floor framing, wall framing and essential joints. Standard wood screws often do not have the load capacity and are not available in the lengths required, so modular building manufacturers turn to hex lags.

You can also find a hex lag bolt or two in the roof structure of many modular homes and prefab sheds and garages. This style of bolt can be easily backed off and tightened to industry specifications and provides the long-term strength that building owners have come to expect.

As the modular building industry continues to expand, the demand for stronger, durable wood fasteners grows. The hex lag bolt is one of the most important common fasteners used on these buildings, and helps these structures meet safety and building standards across North America.