Tenders for Supply of Hex Nylock Nut M-12 As Per Specification Is:1363 Part 3, Iso 7040 Grade-10 Duly White Zinc P Lated For Grade 10.9 M12 Screw. Make/Brand - Unbrako/Tvs/Tuff/Dfl Or Latest Rdso Approved Make O Nly Except Lps. Warranty Period: 30 Months After The Date Of Delivery