Hexagonal Head Bolt Size: M16X170Mm, High Tensile As Per Is: 1364 (Part-1)-2002, Ce-With Property Class 10.9 To Is: 1367 (Part-3)-2002, Coating As Per Mdts-057, Make: Unbrako, Tuff, Dfl, Tvs, O Nly Accepted. [ Warranty Period: 30 Months After The Date Of Delivery ] ]