supply of set of high tensile hexagonal head bolt fully threaded , set of high tensile hexagonal head bolt fully threaded and nuts and check nuts, bolt size m 12 x 60 mm conforming to is 1 67 and nut of property class 10.9 with 02 nos. plain washer to is 2016, 01 no. spring washer to is 3063/2002 and 01 no. check nut of size m12 and 01 no. split pin to is 549 size 3.2 mm x 28 mm with pin hole of distance 4 mm from the free end for split pin as per is 549. accepted make - for bolt and nut is unbrako/tvs/lps,whereas plain washer, spring washer and split washer must be supplied as per mentioned i.s. mfg. t.c. from nabl accredited laboratory to be to be provided with material). [ warranty period: 30 months after the date of delivery ] ]