self drilling plastic anchors

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.

...

Resin anchor studs are specialized fasteners designed to be installed into concrete and masonry substrates using a resin adhesive, typically an epoxy based solution. The studs are embedded into pre-drilled holes filled with the resin, which then cures to form a strong bond between the stud and the substrate. This anchoring method is particularly useful in environments where traditional mechanical anchors may falter due to high loads, dynamic forces, or the inherent variability of the base material.


...

Tek screws are characterized by their unique, cutting-edge tip that allows them to drill into hard substrates without the need for a pre-drilled hole. This feature significantly simplifies the installation process, saving time and reducing the need for additional tools. Commonly made from high-strength steel and often treated to resist corrosion, Tek screws are built to withstand harsh conditions, making them suitable for use both indoors and outdoors.


...