Furthermore, the assembly of a bolt structure requires careful attention to detail. Proper torque application is vital to achieve the desired clamping force without over-tightening, which can lead to bolt failure or damage to the connected materials. Tools such as torque wrenches are employed to measure and apply the correct amount of torque, ensuring optimal performance of the bolt.

Metal expansion nuts find their usage in diverse fields. In construction, they are frequently employed for securing structural elements, like beams and frames, in concrete. They are also prevalent in HVAC systems, where they help secure ducts and other installations prone to thermal expansion.