Black oxide hex socket screws are high-performance fasteners designed for reliable fastening with a sleek, corrosion-resistant finish. Featuring a cylindrical head with an internal hex drive, these screws are ideal for applications where flush mounting and torque control are essential.
The black oxide surface treatment not only offers enhanced corrosion resistance but also provides a professional, low-reflection appearanceโmaking it a popular choice in mechanical, automotive, electronics, and machinery assembly industries.
๐ง Product Specifications
Type: Hex Socket Head Cap Screw (Allen Bolt)
Finish: Black Oxide Coated
Drive Style: Internal Hex (Allen)
Head Style: Cylindrical / Cap
Thread Type: Metric & Inch
Available Sizes:
- Metric: M3, M4, M5, M6, M8, M10, M12, M16, M20
- Inch: #6-32, #8-32, 1/4″-20, 5/16″-18, 3/8″-16, 1/2″-13
Length: 6mm โ 150mm (or customized)
Standards: DIN 912 / ISO 4762 / ANSI B18.3
Material:
- Carbon Steel (Grade 8.8 / 10.9 / 12.9)
- Stainless Steel available upon request
Surface Treatment:
- Black Oxide (oil-coated)
- Optional: Zinc plated, plain, Dacromet, or custom coatings
โ๏ธ Common Applications
- Mechanical Assembly and Machinery
- Precision Instruments and Robotics
- Automotive and Motorcycle Parts
- Industrial Equipment and Tools
- Metal Frames and Structural Fastening
โ
Key Features
โ๏ธ Strong internal hex drive allows for high torque application
โ๏ธ Black oxide surface for corrosion protection and anti-glare finish
โ๏ธ Grade 12.9 available for high-tensile strength requirements
โ๏ธ Ideal for compact spaces and recessed mounting
โ๏ธ Custom sizes, threads, and packaging available
๐ฆ Manufacturing & Delivery
MOQ: 1,000 pcs per size
Packaging: Carton + Pallet / Small Box / OEM Label
Lead Time: 5โ12 working days depending on volume
Service: Drawing-based production, OEM/ODM accepted
Markets: Exported to Europe, South America, Asia, and North America
๐ฉ Looking for a reliable manufacturer of black oxide hex socket screws?
We offer factory-direct supply, precision manufacturing, and fast delivery tailored to your application needs.