nylon hex head bolts

The use of self-tapping screws is a common and effective method in various industries for joining two or more materials. These screws are designed with a special thread that allows them to cut their own path into the material as they are being driven in, eliminating the need for pre-drilling holes. This makes them an ideal choice for situations where time and convenience are paramount, such as in mass production or in situations where access to the back side of the material is limited.

...

The key benefit of self-drilling drywall anchors is their convenience. Traditional anchors require the use of a drill and potentially a separate drill bit to create a pilot hole before the anchor can be inserted. This can be a time-consuming and cumbersome process, especially for those who do not have much experience with power tools. Self-drilling anchors eliminate the need for drilling pilot holes, making the process of hanging items on drywall faster and simpler.

...