Why are screws or bolts essential in electrical box installations?

Screws or bolts play a crucial role in electrical box installations by ensuring secure attachment and integrity. This security is vital because electrical boxes must be firmly mounted to withstand the weight of the wires and devices they contain, as well as to remain stable in the event of any physical stress or movement. A securely attached electrical box helps reduce the risk of damage to electrical connections, which can lead to potential hazards such as short circuits or fires.

Moreover, the integrity of the installation is also essential for maintaining proper grounding and bonding of the electrical system. If the box were to come loose, it could compromise the electrical safety and performance of the entire circuit. Therefore, the use of screws or bolts is not only about stability but also about ensuring adherence to safety standards outlined in the National Electrical Code (NEC), which emphasizes the importance of secure installations in electrical work.