Black Oxide Hex Socket SEMS Screws
Product Overview
Black Oxide Hex Socket SEMS Screws are an essential type of fastener that combines a hexagonal socket head with an integrated washer in a single assembly. Coated with a corrosion-resistant black oxide finish, these screws offer both functional performance and visual appeal. They are designed for applications that require secure fastening with controlled torque and optimal load distribution.
As a versatile component in both mechanical and electronic assemblies, black oxide hex socket SEMS screws are favored for their consistent quality and ease of installation. At Flybear Fastener, we manufacture these screws using premium materials and industry-leading techniques to ensure optimum strength, durability, and reliability.
Product Specifications
| Specification | Details |
|---|---|
| Product Name | Black Oxide Hex Socket SEMS Screws |
| Head Type | Hex Socket |
| Washer Type | Pre-attached spring or flat washer |
| Finish | Black Oxide |
| Thread Type | Metric & Inch (Unified) |
| Drive Type | Internal Hex Drive |
| Material Options | Alloy Steel, Stainless Steel |
| Sizes Available | M3 – M12; ¼” – ½” |
| Standards | DIN912, ISO4762, JIS, ANSI B 18.3, GB70.1 |
Technical Parameters
| Parameter | Options |
|---|---|
| Strength Grades | 8.8, 10.9, 12.9 |
| Surface Treatments | Black Oxide, Zinc Plated, Dacromet |
| Certifications | RoHS, CE, ISO9001, IATF16949 |
| Thread Tolerance | 6g / 6h (Metric), Class 2A / 2B (Inch) |
| Torque Range | Depends on size and grade (Available on request) |
| Operating Temperature | -20°C to 150°C (varies by finish) |
Materials and Manufacturing Process
At Flybear Fastener, we use premium materials such as alloy steel and stainless steel (304/316) for producing black oxide hex socket SEMS screws.
- Alloy steel offers high tensile strength and load-bearing capacity.
- Stainless steel (especially 304 and 316) is widely chosen for its excellent corrosion resistance in demanding environments.
Manufacturing Process:
- Raw Material Selection
- Forming: Cold heading or hot forging
- Thread Rolling
- Heat Treatment: To achieve desired strength grade
- Surface Treatment: Black oxide coating for corrosion resistance and aesthetics
- Washer Assembly: Integrating pre-fitted washers
- Inspection: Dimensional, mechanical, and surface testing
- Packaging: Customer-specified or standard packaging
Application Fields
Black Oxide Hex Socket SEMS Screws are used across a wide range of industries due to their dual-function design and reliable performance. Common areas include:
- Automotive Manufacturing
- Construction & Infrastructure
- Machinery & Mechanical Equipment
- Electrical & Power Systems
- Consumer Electronics & Appliances
- Aerospace, Railways, and Telecommunications
Their aesthetic black finish also makes them suitable for visible or decorative panel fastening applications.
Product Benefits and Competitive Edge
- Premium Material Selection: Use of high-grade stainless steel or high-strength alloy steel ensures long life and dependable performance.
- Precision Engineering: Controlled tolerance reduces assembly time and enhances alignment, especially in automated installations.
- Advanced Surface Coating: Black oxide provides a sleek appearance and moderate corrosion resistance without dimensional build-up.
- High Customization: We offer customization on size, material, washer type, and finish based on client drawings or samples.
- Robust Supply System: With sufficient inventory and rapid shipping capabilities, we ensure on-time delivery.
- Comprehensive Support: Our technical and customer service teams provide professional assistance before and after purchase.
Quality Control and Inspection
Every batch of Black Oxide Hex Socket SEMS Screws from Flybear Fastener undergoes a strict multi-point inspection process:
- Use of gauges for thread accuracy verification
- Tensile strength & shear resistance tests
- Salt spray testing for corrosion resistance
- 100% sampling inspection before packaging
- Traceability backed by ISO9001 and IATF16949 certifications
This ensures only defect-free and high-performance products reach our customers.
Why Choose Flybear Fastener?
At Flybear Fastener, we uphold the principle of “Quality First, Customer Foremost,” committed to delivering reliable fastener products and comprehensive solutions for diverse industries. Whether you’re sourcing standard screws or require engineered components, we provide a one-stop service with expert customization and technical support.
Ready to enhance your product assembly with dependable fasteners? Contact us today for tailored industry solutions and competitive quotations.
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