A Screw Bolt, also known as a Lag Bolt or Lag Screw, is a type of threaded fastener used to secure objects to wood, concrete, or masonry surfaces. Galvanized screw bolts are a specific type that have been coated with a protective zinc-based finish.

Key features and characteristics of Galvanized Screw Bolts:

1. Material and Finish:

• Galvanized screw bolts are typically made of steel that has been coated with a layer of zinc (galvanized) to provide corrosion resistance.

• The galvanized coating helps protect the underlying steel from rust and deterioration, making galvanized screw bolts more suitable for outdoor or damp environments.

2. Head Styles:

• Galvanized screw bolts are available in various head styles, such as hex head, lag head, or round head, depending on the intended application and the desired appearance.

3. Thread Design:

• Screw bolts feature a threaded shaft that allows them to be screwed directly into the base material, such as wood, concrete, or masonry.

• The threads are typically coarse, providing a strong, secure grip in the base material.

4. Installation:

• To install a galvanized screw bolt, a pilot hole is usually drilled first, slightly smaller than the bolt diameter.

• The screw bolt is then driven into the pilot hole using a wrench, socket, or power tool, depending on the head style.

• For concrete or masonry applications, a hammer drill may be used to create the pilot hole.

5. Load Capacity:

• Galvanized screw bolts are available in a range of sizes and strength grades, with typical load capacities ranging from around 50 pounds (22 kg) to 1,000 pounds (454 kg) or more, depending on the bolt size, material, and installation conditions.

6. Applications:

• Securing outdoor furniture, fencing, or decking to wood or concrete

• Attaching brackets, hangers, or other hardware to concrete or masonry walls

• Mounting electrical boxes, conduit, or other equipment to wood, concrete, or masonry

• Galvanized screw bolts are commonly used for a variety of applications, such as:

7. Advantages:

• Corrosion-resistant galvanized finish for outdoor or damp environments

• Secure, threaded design for a strong, load-bearing connection

• Suitable for use in wood, concrete, and masonry materials

• Available in a range of sizes and strength grades to meet varying needs

• Reusable and can be removed and reinstalled as needed

Galvanized screw bolts offer a durable and corrosion-resistant solution for securing objects to a variety of base materials, making them a popular choice for both indoor and outdoor applications.