supply of set of prevailing torque type hexagon , set of prevailing torque type hexagon nuts with non metallic insert to is-7002-2005 and technical supply condition as per din 6925, 1367-2002 part viii ,10 with zinc coating as per clause no. 2 of rcf specn mdts-057 rev.-nil or latest as per following size:m8-16, m10-6, m12-24, m16-56, m20-8, m 24-24, m30-8nos acceptable- acceptable offer -unbrako/dfl make manufactured by deepak fastners l td standard quality is 7002/2002 and iso 7040 property grade 10 specn: din 6925-proporty class -10 to is:1367 (part-8)2002,a3b [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lac s ] ]