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.
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basic information
Size variations: M2, M2.5, M2.6, M3, M4
Price information
The price varies depending on the quantity, so please feel free to contact us.
Delivery Time
※The delivery time may vary depending on the quantity, so please feel free to contact us.
Applications/Examples of results
This is a hexagon socket bolt (cap bolt) treated with a low-temperature black chrome process that features a thin film for 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 such as semiconductors, LCDs, and optical technology-related equipment. It is tightened using a hexagonal rod wrench (hex wrench), 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. Standard film thickness: 3 to 12 μm. Since there is no need to apply oil, it can be used 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.
![[For Precision Instruments] 'Stainless Steel Hex Socket Bolt'](https://image.mono.ipros.com/public/product/image/e7a/2001230930/IPROS43991736848409601715.jpeg?w=280&h=280)
