Stainless steel (low-temperature black chrome treatment) hex socket bolt (cap bolt)
This is a hex socket bolt (cap bolt) treated with a low-temperature black chrome process that features a thin film with high corrosion resistance and a matte black color. The non-glossy black surface is ideal for optical devices that require anti-glare properties. It has corrosion resistance that is several tens of times greater than black dyeing. The low-temperature black chrome treatment offers excellent wear resistance, light-selective absorption, and thermal absorption, leading to increased demand in industries related to semiconductors, LCDs, and optical technologies. It is tightened using a hexagonal rod wrench (hex key), making it suitable for tightening in narrow spaces where using a spanner or wrench is difficult. It complies with EU-RoHS2 standards.
Applications: Semiconductor and LCD manufacturing equipment, optical inspection equipment, top covers and diaphragm parts of high-end single-lens reflex digital cameras, precision drive components such as LM guides and gears, etc. Standard film thickness: 3 to 12 μm. Since there is no need to apply oil, it can be used in clean rooms.
