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

Source: https://www.landee.cn/stainless-steel-stud-bolt-nuts-a193-b8-a194-8-m20-125-mm.html