On 06 May 2011 Sars announced an increase in the anti-dumping duties on bolts, of iron or steel, with hexagon heads (excluding bolts of stainless steel, bolts fitted with base metal expansion sleeves and bolts identifiable for use solely or principally on aircraft), of a width of 6 mm or more but not exceeding 36 mm and a length of 10 mm or more but not exceeding 400 mm, whether or not with their nuts and washers originating in or imported from the People’s Republic of China (China).