Product Name: Fully Threaded Bolt with Nuts, Stainless Steel
Components: Stud Bolt, 2 Hex Nuts, 2 Washers
Bolt Type: Fully Threaded
Stud Bolt Material: ASTM A193 Grade B8
Hex Nut Material: ASTM A194 Grade 8
Size: M20
Length: 125 mm

Source: https://www.landeepipefitting.com/full-thread-bolt-with-nuts-astm-a193-b8-a194-8-m20-125-mm.html