Product Name: Full Thread Stud Bolt with Nut
Type: Fully Threaded Stud Bolts with Heavy Hex Nuts
Size: 1-1/8 Inch
Stud Bolt Material: ASTM A193 Grade B8, Stainless Steel
Nut Material: ASTM A194 Grade 8, Stainless Steel
Ends: Chamfered
Application: Valve Flange Assembly

Source: https://www.landeepipefitting.com/full-thread-stud-bolt-with-nut-a193-b8-a194-8-1-1-8-inch.html