https://americanwireworks.com/guides/what-is-lockwire
Lockwire & Safety Wire: Alloys, MS20995 Specs & Sizes | American Wire Works
Lockwire — also called locking wire, lock wire, or safety wire — is soft, ductile wire twisted through drilled fasteners so vibration cannot loosen them. Learn...
safety wirelockwirealloysspecssizes