What does the term 'lockwire' refer to in technical language?

The term 'lockwire' refers to a safety wire used in mechanical applications to prevent fasteners from loosening due to vibration or operational movements. The correct choice, which describes 'lockwire' as "Sicherungsdraht," aligns perfectly with this function, as the German term translates directly to “safety wire.”

In contexts where safety and security of fastened elements are critical, lockwiring ensures that components remain securely fastened to safeguard against potential operational failures. Using safety wire is a common practice in various industries, including aerospace and automotive, where reliability is paramount.

The other terms do not accurately capture the essence of 'lockwire.' For instance, "Kabelbaum" refers to a wiring harness used in assembling electrical components, "Leck" translates to "leak," which is unrelated to fastener security, and "Nick" typically refers to a small cut or indentation, again not relevant to the application of lockwire.