Mounting Fasteners Of Air Spring As Per Str No: Rdso/2020/Cg-01 June 2020Or Lat Est Consisting Of 1. High Tensile Hexagonal Socket- Head Cap Screwm20 X 55 Long.Is: 2269 (Lat Est) Class 10.9. Quantity - 01 Per Set. 2. Prevailingtorque Type Hexagonal Nuts ( With Non-Met Allic Insert ) M20, Is:7002 (Latest ) Class10 Quantity -01 Per Set. [ Warranty Period: 30 Months Af Ter The Date Of Delivery ] ]