Tender For supply of set of hardware for secondary vertical damper consisting of items:1-hexa hd screw iso 4017-m 12x 55.8.8, geo silver, qty. 04 nos./set.2-washer nordlock nl 12,geo silver qty. 08 nos/set.3-nut iso 4032 m12-8,geo silver qty.04 nos/set.( to be procured from rdso approved source of ''axle and steel high tensile cap screw to be used in end holes of bg freight axels'' ) 1 set= 01 secondary vertical damper fixing.