hex washer head self tapping screw

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.

...

The incorporated washer, on the other hand, serves multiple purposes. Primarily, it increases the bearing surface, thereby distributing the load from the screw more evenly across the material it's screwed into. This prevents damage to the surface, such as splitting or indentation, which can occur when a screw is tightened without a washer. Additionally, the washer can also help in reducing friction and preventing loosening due to vibration.

...