Hex. Head Bolt & Nut, M10 X 30 Mm, Product Grade 'C', M.S.Black. Matl.& Specn : Is: 136 3 (Part - 1) / 2023 (6Th Rev.) Or Latest And Is: 1363 (Part - 3) / 2018 (5Th. Rev.) Or Latest, Property Class 4.6 For Bolt And Property Class 5 For Nut. [ Warranty Period: 30 Months After The Date Of Delivery ] ]