Fs All Steel Lock Nut M12 Property Class -8. (1) Zinc Flake Coating (Geomet321 Or Equivalent) With Top Coat, Without Any Hexavalent Chromium, Without Any Integrated Or Separately Add Ed Lubricant. Minimum Salt Spray Test Life Of 1000 Hours Is To Be Ensured. (2). Fs All Steel Lock Nuts. Di Mensions Of Nut Shall Be As Per Din 6925/Din980M. Nut Shall Be Of Make M/S Flaig Hommel Gmbh G Ermany. [ Warranty Period: 30 Months After The Date Of Delivery ] ]