Tenders for Supply of Hex. Head Screw Complete For The Hex. Head Screw M20x65 For Vertical Damper Fixing For Mainline Coaches To Icf Drg.No.T-0-5-673, Items %U2013 1, 2 & 3 Col-I, Alt-C. Note: Screw & Nut Shall Be Of Make / Brand Tvs Or Dfl Or Unbrko Or Lps Or Tuff Only And Split Pin Iso 1234 %U2013 4X36 %U2013 St. To Icf Drg.No.Wtac3-0-5-305, Item-20, Alt. J/4.