Details:

Materials:

Carbon steel, stainless steel, aluminum alloy, brass, titanium, nylon, etc

Surface treatment:

Zinc plating, nickel plating, tin plating, passivation, sandblasting, oxidation, polishing, etc

Standard: DIN, ISO, ANSI, ASME, BS, JIS and non-standard

Rating: 4.8,8.8,10.9,12.9, etc