High Tensile Hexagonal Head Bolt Size: M20 X 2.5Mm X 270Mm Long To Is 1364 Part 1 & Double Nuts To Is 1364 Part 3. Property Clause 10.9 With Double Spring Washers To Is: 3063 Make: Tvs Or Unbrako Or Lps. Note Material Shall Be Supplied Alongwith Manu Facturer'S Test Certificate. ]