1/2"-13 x 3-1/2" (OAL 3-3/4") A193 B8 Class 1 Fully Threaded Stud / THREAD CLASS: 2A THREAD DIRECTION: RIGHT-HAND OVERALL LENGTH: 3.750 INCHES NOMINAL END ITEM IDENTIFICATION: 3990-01-588-3373 THREAD QUANTITY PER INCH: 13 NOMINAL THREAD SIZE: 0.500 INCHES MATERIAL: STEEL COMP 304 THREAD SERIES DESIGNATOR: UNC