What is a critical aspect to consider when using safety wire?

When using safety wire, the number of twists per inch is a critical aspect to consider. Properly twisted safety wire ensures that fasteners remain secure under vibration and dynamic loads. The recommended number of twists provides the necessary tension in the wire, preventing it from loosening. Adequate twisting creates a secure hold that is essential for safety-critical applications, especially in aviation environments where mechanical failures can have serious consequences.

While other factors such as the length, color coding, and weight of the wire can play roles in specific applications or preferences, they are not as fundamental to the effectiveness of ensuring fastener security as the number of twists per inch. Proper twisting techniques influence the wire's performance directly, making it the key focus when employing safety wire in maintenance and assembly tasks.