Hexagon Head Bolt With Thread M 20, Nominal Length 75 Mm. And Property Class 4.8, Conforming To Is: 1363 (Part 1):2 002/Iso 4016:1999 (Fourth Revision) With Hexagon Nut With Thread M20 And Property Class 5, Conforming To Is: 1363 (Part Iii):2002/ Iso 4034:1999 (Fourth Revision). [ Warranty Period: 30 Months After The Date Of Delivery ] ]