gypsum butterfly plug

One of the key benefits of self-drilling screws is their ability to create precise and secure connections without the need for pre-drilled holes. This is particularly useful in applications where access to the back of the material is limited or where traditional drilling methods are impractical. Self-drilling screws are commonly used in the construction of steel and metal structures, as well as in the installation of roofing and cladding systems.

...

Nuts are used alongside bolts to secure components together. The nut’s internal threads allow it to fit onto the bolt’s shaft, creating a tight connection when tightened. There are several types of nuts, including hex nuts, lock nuts, and wing nuts. Lock nuts are designed to resist loosening under vibration, making them well-suited for applications in dynamic environments. Wing nuts, with their unique design, can be easily tightened or loosened by hand, making them useful in situations where frequent adjustments are necessary.


...