Concrete Screw Type Expansion Anchor Bolt Steel Structure Carbon Steel 35K

Screw Type Expansion Anchor Bolts For Concrete Suitable For All Kinds Of Steel Structure Carbon Steel 35K

Screw type expansion anchor bolts, also known as expansion bolts or screw anchors, are a type of fastening device used to secure objects or structures to concrete, masonry, or other solid substrates. These bolts work by expanding a sleeve or anchor body within a pre-drilled hole, creating a strong mechanical bond between the bolt and the substrate.

Characteristics:

1. Expansion Mechanism: Screw type expansion anchor bolts feature an internal expansion mechanism that is activated by turning the bolt. As the bolt is tightened, the expansion sleeve is forced outward, pressing against the walls of the pre-drilled hole and creating a friction lock.

2. High Holding Power: These bolts are designed to provide high holding power and resistance to pull-out forces. The expansion sleeve effectively "locks" the bolt in place, preventing it from loosening or failing under load.

3. Versatility: Screw type expansion anchor bolts are suitable for use in a wide range of substrates, including concrete, masonry, brick, and some types of stone. They can be used in both overhead and side applications.

4. Ease of Installation: While the initial drilling and hole preparation may require some precision, the actual installation of screw type expansion anchor bolts is relatively straightforward. The bolt is simply inserted into the pre-drilled hole and tightened using a wrench or drill.

5. Reusable: In some cases, screw type expansion anchor bolts can be removed and reused, depending on the condition of the hole and the substrate. However, this should be done with caution to avoid damaging the bolt or the substrate.

Applications:

1. Structural Support: Screw type expansion anchor bolts are commonly used to provide structural support for beams, columns, and other load-bearing elements. They are often specified in construction projects where a strong, reliable connection to the substrate is required.

2. Signage and Fixtures: These bolts are also suitable for securing signage, fixtures, and other non-structural elements to concrete or masonry walls.

3. Retrofitting and Repairs: In retrofit and repair applications, screw type expansion anchor bolts can be used to add new supports or reinforcements to existing structures.

4. Temporary Structures: For temporary structures or applications where a removable connection is desired, screw type expansion anchor bolts provide a convenient and reliable solution.