Supply of Fs All Steel Lock Nut M-16 Property Class 10, Zinc Flake Coatinggeomet 321 Or Equivalent With Top Coat, Without Any Hexavalent Chromium Without Any Integrated Or Separately Added Lubricant, Minimum Salt Spray Test Life For 1000 Hours Shall Be Ensured, Din 6925/Din980m, Make-Flaig, Hommel, Gmbh, Germany, As Per Icf Drg. 88902001 Alt D. Item No. 19..