Set Of 03 Washers Consisting Of (I) Spherical Washer, For M20 Bolt As Per Is 4297:1996 And M Aterial E250 As Per Is 2062:2011 ; Qty-01 No./Set. (Ii) Plain Washer (Machined) For M20 Bolt As Per Is 2016: 1967 And Material E250, As Per Is 2062:2011 ; Qty-01 No./Set. (Iii) Spring Washer For M20 Bolt, As Per Is 30 63:1994, Type B, Right Hand And Material Spring Steel Qty-01 No./Set . Note: All Items To Be Galvanized. [ Warranty Period: 30 Months After The Date Of Delivery ] ]