supply of set of a2-70 grade corrosion resistantset of a2-70 grade corrosion resistant,set of a2-70 grade corrosion resistant stainless-steel nut, bolt and washers required for maint enance of igbt based propulsion system of three phase locomotives having tensile strength of minimum 70 0 mpa. one set consists of following 9 items :- (1) hex head m10 x 15 mm size a2-70 grade ss bolt qty 02 no.s (2) hex head m10 x 55 mm size a2-70 grade ss bolt qty 03 no.s (3) hex head m10 size a2-70 grade s s nut qty 03 no.s (4) m10 size ss plain washer qty 05 no.s (5) m10 size ss spring washer qty 05 no.s (6) h ex head m12 x 50 mm size a2-70 grade ss bolt qty 01 no. (7) hex head m12 size a2-70 grade ss nut qty 0 1 no. (8) m12 size ss plain washer qty 01 no. (9) m12 size ss spring washer qty 01 no. [ warranty perio d: 30 months after the date of delivery ] ] => limited