set of prevailing torque type hexagon nuts with non metallic insert to is:7002- 2018, property class-10 to is: 1367 (part-8)-2020, a3b, with zinc coating as per clause no. 2 of rcf spec. mdts-057, rev-nil. as per following sizes and numbers: m8=16 nos, m10=6 nos, m12=24 nos, m16=56 nos, m20=8 nos, m24=24 nos, m30=8 nos.
