... diameter tolerance:+/-0.001 3.length tolerance:+/-0.001 types of fasteners1.Material: 3032.Product standard: ¢14.36*26 ... :+/-0.001 surface roughness:0.1-0.84.Surface treatment:: kinds of plating (Zinc, Nikel, Chrome, Tin, Ag); Painting, Powder, ... experienced staffs so that could promise the top quality of all products in our company.Good service is also ... you for long term, thank you ! types of fasteners