supply of interlock washers , interlock washers for axle end equipment of vande bharath train set wheel (ver 2.0) suitable for m16 hex agonal head screw. as per icf drg no ts/mc 89002007 under note point 3 & 4 : 1. interlock washer shall be supplied a s pairs glued together to fasten as such. 2. interlock washer shall be make nord-lock. 3. zinc flake coating (geomet321 or equivalent) with top coat, without any hexavalent chromium, without any integrated or separately added lubricant, m inimum salt spray test life of 1000 hours shall be ensured. special condition: 1) suitable packing to be done to prevent damage during transit, unloading and rust prevention during storage. 2) authorized dealership certificate/tender speci fic document from oem required. make: washer shall be of nord-lock only. [ warranty period: 30 months after the date of delivery ] ]