titanium racing nut,size:m12x1.5/m14x1.5,length:40/45mm,type:closed end(also have open end),color:titanium nature,balck,burnt blue.you also can suctom the special type as your thought,we can help you to design the drawing and also make your logo(laser marking).
this itanium racing nut is made of GR5,it has the almost same strength with the steel,but only have half of weight of it,also has Corrosion resistance,The oxidation resistance ,Not easy to rust.
http://www.psstitaniumfastener.com