Supply Of Bolt Hex Headbolt Hex Head,Bolt Hex Head 3/8 Inch-16 Tpi X 1-1/4 Inch To Dlw Part No. 19012044 And Dlw Drg. No. 179841 For Wdg4, Wdp4d And Wdg5 Locomotves. [ Warranty Period: 30 Months After The Date Of Delivery ] , Bolt Hexagon 1/2 - 13X 1.75 To Emd Part No. 179887 And Dlw Part No 19014030 [ Warranty Period: 30 Months After The Date Of Delivery ]