Set Of Studs For Hhp Locos Consisting Of Two Items-(1) Stud 3/8 Inch-16 Tpi X 3/8 Inch-24 Tpi X 2-3/8 Inch Long To Emd Part No. 8310841 (2) Stud 3/8 Inch-16 Tpi X 3/8 Inch-24 Tpi X 2-7/8 Inch Long To Emd Part No. 8366379 For Hhp Locomotives. [ Warranty Period: 30 Months After The Date Of Delivery ] ]