supply of supply of fastener kit for socket joint i) lock washer of dellner.supply of fastener kit for socket joint i) lock washer of dellner.,supply of fastener kit for socket joint i) lock washer of dellner part no.1040404 - 2 nos ii) hex head screw of dellner part no. 5024016171 - 4 nos iii) plainwasher of dellner part no. 5458170200 - 4 nos iv) prevailing torque hex nut ofdellner part no. 5374016100 - 4 nos for semi permanent coupler o f vande bharat train. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]