Hex Head Plug Screw M27X2 As Per Din 910-1992, Material Grade-Steel 9 Smnpb 28 K As Per Din 1651, Surface Finish As Per Clause 5 Of Din 910. As Per Drg.No. - Specn: Din-91 0.1992 Material Grade Steel 9 Smn Pb. 28 K As Per Din 1651 Surface Finish As Per Clause 5 O F Din 910 [ Warranty Period: 30 Months After The Date Of Delivery ] ]