The addition of washers to hex head self-tapping screws is another feature that enhances their performance. Washers are flat discs, usually made of metal or plastic, placed under the head of the screw. They serve several important purposes

2. Installation Torque It is essential to adhere to the recommended torque specifications during installation to avoid over-tightening, which can lead to stripping the threads or damaging the material.

2. Application Suitability In environments where higher loads or forces are expected, such as in industrial settings or high-rise buildings, 4% anchor bolts are often preferred. Conversely, 3% bolts may be sufficient for lighter applications, such as residential projects.