MILBAR Safety Lockwire - Grainger Industrial Supply- milbar lockwire pliers for sale online ,MILBAR Safety Lockwire. 1 product. Safety lockwire, or safety wire, prevents fasteners from loosening and falling out due to equipment vibration or movement. Safety lockwire is threaded through a fastener, twisted and tightened, and then wound around another part to anchor it place. It is commonly used to secure fasteners when it is critical to ...SAFETY LOCK WIRE (.041) from Aircraft Tool SupplyThe Milbar Specialty Twister is ideal for difficult access situations. Its deep, slender reach will take it into areas that just cannot be reached with ordinary safety wire pliers. Adjustable 13" to 19", right hand twist with manual return.