Hex. Head Bolt ,Steel, M12 X 50 - 8.8 To Is:1364 ( Part 1):2023, Iso 4014:2022 With Hex Nut M12 - 8 To Is:1364 (Part 3):2018, Iso 4032:2012 , And Spring Lock Washer B12 To Is 3063:1994 (Reaffirmed 2021,Incorporating 01 Amendment). [ Warranty Period: 30 Months After The Date Of Delivery ] ]