Safetrack Extension Bonds are used when you need to crimp a wire to a pinbrazed connection. The Extension Bonds are made of highly flexible wire to withstand vibrations in the rail. The cable lugs in one end are specifically made for PinBrazing. The other end consists of a crimping sleeve (often tinned) for crimping another cable to create an extension of the bond. Our unique design of the cable lugs ensures that the wire in the cable is brazed to the rail. This design gives the lowest possible transition resistance.