expansion bolts for hollow structural steel sections

3. **Installing the Fastener** With the anchor in place, screw in the provided bolt or threaded rod using a wrench or socket **Installing the Fastener** With the anchor in place, screw in the provided bolt or threaded rod using a wrench or socket **Installing the Fastener** With the anchor in place, screw in the provided bolt or threaded rod using a wrench or socket **Installing the Fastener** With the anchor in place, screw in the provided bolt or threaded rod using a wrench or socketinstalling butterfly anchors. As you turn the fastener, the anchor's wings will expand, pressing against the inner walls of the hole. Continue turning until the fastener is snug but not overly tight. Over-tightening can potentially damage the anchor or reduce its holding capacity.

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Self drilling screws for heavy steel are essential tools for fastening heavy metal structures without the need for pre-drilling. These screws are composed of a hardened steel drill point and threads designed to cut through the metal surface while providing a secure hold. They are widely used in construction, automotive, and manufacturing industries where fast and efficient assembly of heavy steel components is crucial.

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