supply of inter lock washer suitable for m 16 hex socket head cap screwinter lock washer suitable for m 16 hex socket head cap screw,inter lock washer suitable for m 16 hex socket head cap screw . 1. zinc flake coating (geomet321 or equivalent) with top coat, without any hexavalent chromium, without any inte grated or separately added lubricant. minimum salt spray test life of 1000 hours is to be ensured. 2. in terlock washers shall be coated or plated with environment friendly coating. 3. inter lock washers shal l be procured as pair glued together to fasten as such. 4 inter lock washer shall be of make type: nor d lock only suitable packing to be done to prevent damage during transit, unloading an d rust prevention during storage. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ] => limited