Set Of Spares Parts Of Supporting Device (Sanrok Make) 1. Nyloc Nut M 20 (Is:1364 Part-1), 2. Allen Bolt M 20X130 Grade 10.9 (Is:1364 Part-1), 3. Conical Washer (1Ed-1124), 4. Flat Washer (1 Ed-1 125), 5. Spring Washer (Din 127) Firms Offer- Make/Brand-Sanrok, [ Warranty Period: 30 Months After The Date Of Delivery ] ]