wafer head screws self drilling

A full thread stud bolt is essentially a long, cylindrical rod with threads on both ends, designed to be screwed into tapped holes or nuts. The 'full thread' terminology refers to the fact that the entire shaft of the bolt is covered in threads, leaving no unthreaded portion in the middle. This feature makes them highly versatile and adaptable to a wide range of industrial uses where high tensile strength and secure fastening are critical.

...

The installation process of A325 fasteners is critical and involves a two-step method - tensioning and tightening. This process not only ensures proper seating of the bolt but also creates a preload, which counteracts the forces that will be applied during service. This preload, known as 'prestress,' is what gives these fasteners their exceptional load-bearing capacity This preload, known as 'prestress,' is what gives these fasteners their exceptional load-bearing capacity This preload, known as 'prestress,' is what gives these fasteners their exceptional load-bearing capacity This preload, known as 'prestress,' is what gives these fasteners their exceptional load-bearing capacitya325 fasteners.

...