The Lag Screw

The Lag screw is a type of fastener used to hold materials together. It is designed to be stronger than wood screws, making it ideal for construction projects that require heavy loads.

Lag screws are often used to lag together lumber framing and other heavy carpentry applications. The name “lag” comes from their original primary use in lag-together timber framing.

These fasteners are made of carbon steel and have a zinc coating. They are available in standard SAE inch sizes and lengths. They can be found in either a bright yellow (electroplated) or dull gray (hot-dip galvanized) finish. They are also available in corrosion-resistant silicon bronze.

Before using a lag screw, it is important to align the materials that you want to attach together and use clamps to keep them in place. A bit should then be used to drill a pilot hole that is slightly smaller than the bolt. After that, the bolt should be inserted into the hole and tightened with a power drill.

Surgically, lag screw fixation is less invasive than bone plate fixation. This technique allows patients to have a faster recovery and return to their regular activities more quickly. However, lag screw fixation is not a fool-proof method of fracture fixation. The large coefficient of variation in experimental results suggests that the ability to accurately perform this procedure depends on surgeon skill and not just on the underlying mechanical properties of the bone. Furthermore, complications such as metacarpophalangeal joint stiffness, extensor tendon adhesion, and iatrogenic injury to the dorsal radial nerve may occur if this fixation technique is not performed correctly. Lag screw

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