supply of mechanical materials for maintenance of different rli installations under burdwan (a-m) sub-division under burdwan (agri-mech) division under non plan programme in the district of purba bardhaman for the f y 2024 2025 , supply and transportation of m 16 x 80 mm m.s. hexagonal head bolts and nuts bearing is -1363 (part-i) / 1992 of product grade-c latest amendments for bolts & is-1363 (part-3) /1992 of product grade-c with latest amendments for nuts properties/ clause for bolts -4.6 & for nuts -4.5. both bolts & nuts are to be duly isi certification marked. finish : galvanised. , supply and transportation of m 20 x 100 mm m.s. hexagonal head bolts and nuts bearing is -1363 (part-i) / 1992 of product grade-c latest amendments for bolts & is-1363 (part-3) /1992 of product grade-c with latest amendments for nuts properties/ clause for bolts -4.6 & for nuts -4.5. both bolts & nuts are to be duly isi certification marked. finish : galvanised. , 1/2x3 nut & bolts. finish : galvanised. , 7/16 x 2 1/2 square headed nut & bolts ms/gi. , gland packing, 10mm , gland packing, 8mm , 150 mm dia. rubber insertion with hole.150 mm dia. 5 mm thick rubber insertion with proper reinforcement 2 ply cotton fabricas per is: 638/79 with latest amendment, if any, with isi marked suitable for isi marked ms flange as per is 6392/71 with standard drilled holes (table-17) as is: 1239/1992.isi marked. make: indian oils seals and synthetic products ltd or equivalent reputed make