supply of procurement of track machine items. , self starter for t-28 as per bosch part no. 0001.368.012, make - plasser, delkor, tvs, bo sch ] , air unloader valve as per plasser part no:90200 -a substitute 90200 , make: plasser , tv s ] , nylock nut [cold forged precision hexagonal sunlock nut] of size :16x2.0mm as p er specification din982, grade 10, make: tvs , lps ,unbrako ] , socket head cap screw [allen bolt] of size 16x50 mm, specification: is-2269, iso-476 2, threads: is-4218 metric, material : special grade alloy steel , property class : 12.9 as per is-1367, make: tvs, lps, unbrako. ] , socket head cap screw [allen bolt] of size 20x70 mm, specification: is-2269, iso-476 2, threads: is-4218 metric, material : special grade alloy steel , property class : 12.9 as per is-1367, make: tvs, lps, unbrako. ] , hex nut of size m16x2mm. specification: is-1364, iso-4032, threads: is- 4218, property clas s: is-1367, is-898 part-ii , grade -10. acceptable make : tvs,lps,unbrako ] , nylock nut [cold forged precision hexagonal sunlock nut] of size :12 x 1.75 mm as per specification din982, grade 10, make: tvs , lps ,unbrako . ]