The M8 Thin Fine Pitch Hexagon Nuts - 1mm Pitch (DIN 439) - Black Stainless Steel (A2) has the following features:DIN 439 Manufacturing Standard, Stainless Steel (A2) Material, Stainless Steel (A2) Material Specification, Matte Black Finish, 1mm Thread Pitch, Metric Metric or Imperial?, M8 (8mm) Thread Size, 4mm Nut Thickness (T), 13mm Socket Size (J). Discover more about the Metric Thin Fine Pitch Hexagon Nuts range. Metric Thin Fine Pitch Hexagon Nuts feature tighter threads for greater thread engagement, as well as a low-profile design for space conservation. Materials Thin Fine Pitch Hexagon Nuts can be manufactured from a wide number of materials, including standard A2 and A4 Stainless Steel, Aluminium, Phosphor Bronze and PEEK. Metric Thin Fine Pitch Hexagon Nuts These components are manufactured according to DIN 439, and are available in metric diameters ranging from M8 to M20. A number of ISO standard thread pitches are also available for each nut size. Imperial Thin Fine Pitch Hexagon Nuts UNF threaded components are available in AccuScrews' imperial Thin Hexagon Nuts range as standard.