Hexagon nuts ~0,8d ISO 4032-Titanium grade II M12

The wrench sizes for hexagon bolts and nuts are specified in ISO 272: 1982-01. The nominal wrench size on the workpiece (e.g. bolt, nut) is the same as that on the tool. However, there is some play between the two to allow the tool to be fitted without difficulty. The relationship between the nominal diameter d of the thread and the wrench size s is standardised in EN ISO 4014 and EN ISO 4017 for hexagon bolts, and in EN ISO 4032 for hexagon nuts (dimensions in mm).

Titanium is a chemical element with the symbol Ti. The metal has a bright white metallic lustre, a low density, and is corrosion- and temperature-resistant, as well as mechanically strong and ductile. Pure titanium is classified into five grades of purity (Grade 1 to Grade 5). Titanium alloys containing elements such as Al, Mn, V, Mo and Cu have improved mechanical properties and are more corrosion-resistant.

The term plain indicates a completely untreated, merely oiled, smooth surface for all DIN and ISO screws such as wood screws, hexagon head screws, threaded rods, nuts and many types of washers.

Grade 2 titanium is pure titanium and is the most widely used titanium alloy in all product forms for industrial applications, owing to its moderate strength, excellent corrosion resistance and formability. Grade 2 offers an excellent balance between moderate strength and reasonable ductility. This material is non-magnetic. Material 3.7035 – Ti Gr 2