Safety lock wire, 1/4 lb spool Type: Stainless Steel Annealed Safety/Lock Wire | Stainless Steel, Spool Safety wire/lock wire is used to ensure fasteners have been properly tightened. This type of positive locking device serves as a safety wiring mechanism to prevent the fastener from falling out or loosening. The safety wire is typically threaded through the fastener hole then twisted to a part or another fastener then is twisted again. White spool Corrosion resistant Protects from dirt and grease Stainless steel Product Codes ECCN:EAR99 SCHEDULE B CODE: 8544.11.0050 Size: 1/4 lb Spool color: White, Wire material: Stainless steel