supply of ht bolt m 12 x 55 mm of grade 8.8 fully threaded with one full nut conforming to is 1367-1986, one check nut, two flat washers, one-spring washers and one split pin of size 3 x 50 mm.ht bolt m 12 x 55 mm of grade 8.8 fully threaded with one full nut conforming to is 1367-1986, one check nut, two flat washers, one-spring washers and one split pin of size 3 x 50 mm.,ht bolt m 12 x 55 mm of grade 8.8 fully threaded with one full nut conforming to is 1367-19 86, one check nut, two flat washers, one-spring washers and one split pin of size 3 x 50 mm. a split pin hol e of dia 3.3 mm at a distance of 5 mm from free end. make acceptable: tvs, unbrako, lps, dfl, bmi. mate rial should be supplied in assembled condition. [ warranty period: 12 months after the date of delivery ] ]