Stainless steel spacer hex male and female screws flat diameter 5 low-temperature black chrome
BSU-0000B-5
Stainless steel black spacer hex male and female screws flat diameter 5 low-temperature black chrome treatment
This is a stainless steel spacer treated with low-temperature black chrome. The matte black surface is ideal for optical devices that require anti-glare properties. With a film thickness of approximately 2μm, it has no variation in thickness distribution and offers corrosion resistance several tens of times greater than black dyeing. It has a hexagonal column shape with a flat diameter of 5mm and features male and female threads. Low-temperature black chrome treatment provides excellent wear resistance, light-selective absorption, and thermal absorption, leading to increased demand in industries such as semiconductors, liquid crystal, and optical technology-related equipment. Applications include semiconductor and liquid crystal manufacturing equipment, optical inspection devices, top covers and diaphragm parts of high-end single-lens reflex digital cameras, and precision drive components such as LM guides and gears. Standard film thickness: 5±2μm. Since there is no need for oil application, it can be used in clean rooms.
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basic information
Size variation: M3
Price information
Delivery times vary depending on the quantity. Same-day shipping is possible at the earliest. Please feel free to contact us.
Delivery Time
※Delivery times vary depending on the quantity. Same-day shipping is possible at the earliest. Please feel free to contact us.
Applications/Examples of results
Stainless steel is excellent in corrosion resistance and is suitable for use in humid environments and outdoors, such as in the chemical and water treatment fields. SUS XM-7 wire (equivalent to SUS304 performance) is widely used as the material for stainless steel screws. Low-temperature black chrome treatment excels in wear resistance, light-selective absorption, and thermal absorption compared to painting or other black coatings, making it suitable for semiconductor, LCD, and optical technology-related devices. The film thickness is very thin, around 2 microns, resulting in less variation in thickness distribution compared to electroplating. The color tone is matte black, making it suitable for preventing halation in optical sensor devices. It has less color unevenness compared to black dyeing treatment or chromate treatment, and unlike black dyeing treatment, there is no need to apply anti-rust oil, allowing for use in clean rooms.
Company information
Wilco sells various fastening components, including screws, as well as professional tools. Please feel free to contact us regarding custom products, custom processing, and the issuance of various certificates and documents related to other products.
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