Socket Size 20 Mm, Galvanised, Isi Marked Specification No: - Is 1879:2010,Third Revisi On (Reaffirmed:2020, Incorporating 05 Amendments), Table-21, Designation-M2 [ Warranty Period: 30 Months After The Date Of Delivery ] [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitt Ed: Max 8 Lacs ] ]