Tenders for Supply of High Tensile Hexagonal Head Bolt And Nuts - 13 Items. High Tensile Hexagonal Head Bolt With Spring Washer, Plain Washer And He Xagonal Nut With Lock Nut To Size:M16 X 50Mm Length To Is 1364/1992Or Latest And Pro Perty Class 8.8.Make:Lps/Tvs/Unbrako Only. High Tensile Hexagonal Bolt With Spring Washer And Nut To Size M12 X 75M M Long With Full Threaded To Is 1364/1992 Or Latest And Property Class 8.8. Make: Tvs/ Unbrako/Pfl/Dfl/Lps.