Key Bolt (Square Head Bolt-M20 X 80L) With Nut, Spring Washer & 4 Dia. Split Pin To Rdso Drg. No.Sk-69594, Alt-38, Ite M No.9. Square Bolt M20 X 80 Long To Is: 2585- 2006, Property Class 4.8, Spring Washer To Is: 3063-1994 With Amend. 1 Of 2010 , Typ E-B, Split Pin 4 Dia. X 30 Long To Is: 549-2005, Hexagon Nut M-20, Property Class-5 To Is: 1363-2018, Part-3. [ Warranty Period: 30 M Onths After The Date Of Delivery ] ]