supply of high tensile hexagonal socket head cap, hardened & tempered washer with 300 hv, prevailing torque type hexagonal nutshigh tensile hexagonal socket head cap, hardened & tempered washer with 300 hv, prevailing torque type hexagonal nuts,high tensile hexagonal socket head cap screw, m20x55 long, is:2269(latest) class 10.9. the surf ace finish should be zinc electroplated to a3l finish of finish of is: 1367 (part-11). quantity required in packing of 16 nos. make/brand- as per rcf service bulletin no. rcf/mech/sb-m/2021/1 (revision-2 or latest) [ warra nty period: 30 months after the date of delivery ] , hardened & tempered washer with 300 hv class (300 hv - 370hv) hardness. a 22, is:2016(latest ). the surface finish should be zinc electroplated to a3l finish of finish of is: 1367 (part-11). quantity required in packing of 16 nos.make/brand- brand/source- as per rcf service bulletin no. rcf/mech/sb-m/2021/ 1 (revision-2 or latest). [ warranty period: 30 months after the date of delivery ] , prevailing torque type hexagonal nuts (with non-metallic insert), m20:b, is:7002(latest) class 10. t he surface finish should be zinc electroplated to a3l finish of finish of is: 1367 (part-11). quantity required in pac king of 16 nos. make/brand- as per rcf service bulletin no. rcf/mech/sb-m/2021/1 (revision-2 or latest) [ warranty period: 30 months after the date of delivery ] => limited