double threaded bar

The hallmark of self-drilling screws is their ability to create their own pilot holes, negating the need for pre-drilling, which can save significant time and effort during installation. The 13mm self-drilling screw is typically constructed from high-strength steel, ensuring durability and reliability. These screws often feature a sharp, drill-point tip which enables them to penetrate various materials quickly and efficiently. Coupled with a robust thread design, they provide excellent holding power, making them ideal for fastening metal, wood, and other materials.


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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.

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