supply of procurement of set of high tensile socket head cap screw for air spring assembly etc.procurement of set of high tensile socket head cap screw for air spring assembly etc.,set of high tensile socket head cap screw for air spring assembly consisting of 03 items :- (1) high tensile hexagonal socket head cap screw, m20x55 long, is: 2269 (latest) class 10.9 or higher, qty = 01no (2) hardened and tempered washer with 300 hv class (300 hv - 370 hv) hardness. a 2 2, ls: 2016 (latest), qty = 02 nos (3) prevailing torque type hexagonal nut (with non metallic insert), m20: b, ls: 7002 (latest) class 10, qty = 01 no. surface finish of fasteners:- all fasteners (screws, washers & nut s) shall be [ warranty period: 30 months after the date of delivery ] ]