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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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The head of a bolt is also an essential part of its structure. The head of a bolt is the part that is turned to tighten or loosen the bolt. There are several types of bolt heads available, including hex, square, and round heads. Each type of bolt head serves a specific purpose and may be chosen based on the application requirements. For example, hex heads are the most common and provide a larger surface area for applying torque, while round heads are used in applications where a smooth finish is desired.

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