Stainless Steel Self-Drilling Screws Manufacturer
As a dedicated Stainless Steel Self-Drilling Screws manufacturer, Anhui Linghong Hardware Technology Co., Ltd. combines over 20 years of fastener expertise with a modern 12,600 m² facility. We produce self-drilling screws that integrate drilling, tapping, and fastening into one step, eliminating pre-drilling and boosting installation efficiency across construction, metal roofing, and industrial assembly.
Our range covers stainless steel grades 410, 304, and 316, each selected for specific corrosion resistance and hardness needs. Whether you require hex head, pan head, or flat head configurations, we deliver consistent quality backed by ISO 9001, ISO 14001, and ISO 45001 certifications.
Product Range and Applications
We supply stainless steel self-drilling screws in various head styles and drive systems to match your assembly method and finish requirements. The table below outlines our standard options and typical uses.
| Head Style |
Drive Type |
Common Applications |
Material Grades |
| Hex Head |
Hex Socket, Phillips |
Steel framing, metal roofing, heavy-duty fastening |
410, 304, 316 |
| Pan Head |
Phillips, Square Drive |
General sheet metal, cladding, light industrial |
304, 316 |
| Flat Head (Countersunk) |
Phillips, Square Drive |
Architectural panels, trim, where flush finish is required |
304, 316 |
| Bugle Head |
Phillips, Square Drive |
Wood-to-metal, drywall to steel studs |
410, 304 |
Material Selection and Performance
Choosing the right stainless steel grade is critical for corrosion resistance and mechanical strength. We offer:
- 410 Stainless: Hardened for high shear strength, suitable for general indoor and mild outdoor use.
- 304 Stainless: Excellent corrosion resistance for humid, coastal, and chemical environments.
- 316 Stainless: Superior resistance to chlorides and acids, ideal for marine and highly corrosive settings.
Our self-drilling point geometry is engineered to penetrate steel up to 12 gauge without walking, and the thread design ensures secure engagement in both metal and wood substrates.
Customization and Configuration
We understand that each project has unique requirements. Our factory supports customization in:
- Diameter and length combinations (e.g., 10-16 x 35 mm, 5.0 x 50 mm)
- Head styles and drive types (Phillips, square, hex, etc.)
- Point styles (self-drilling, self-tapping)
- Surface finishes (plain, passivated, or custom coatings)
- Packaging (bulk boxes, retail packs, collated strips for auto-feed)
We also offer reduced shank designs for improved drilling performance and reduced torque requirements, as seen in our hex head models.
Quality Assurance and Testing
Quality is embedded in our process. We operate over 80 production sets and maintain a dedicated quality team. Each batch undergoes:
- First-piece inspection to verify dimensions and point geometry
- In-process checks for thread consistency and hardness
- Final inspection using metallographic polishing and Rockwell hardness testers
Our ISO 9001 quality management system ensures traceability and consistency, while ISO 14001 and ISO 45001 reflect our commitment to environmental and occupational safety standards.
Production Capacity and Delivery
With a stable monthly capacity of approximately 500 tons, we can handle large-volume orders for distributors and project-based procurement. Our export experience includes shipping 40-50 containers to Australia and about 10 containers to Europe and Japan monthly, demonstrating our logistics reliability.
We use intelligent and mechanized production supplemented by manual assembly to balance efficiency and precision, ensuring consistent quality across high volumes.
Information We Use to Configure Your Solution
To prepare an accurate quotation and production plan, please provide:
- Material grade (410, 304, 316) and any specific corrosion requirements
- Diameter, length, and head style
- Drive type and point configuration
- Estimated annual or per-order quantity
- Target substrate (steel thickness, wood type, etc.)
- Packaging and labeling preferences
With this information, we can recommend the optimal screw design and finish for your application.
Frequently Asked Questions
What is the difference between 410 and 304 stainless steel self-drilling screws?
410 stainless offers higher hardness and is often used for fastening to steel, while 304 provides better corrosion resistance for outdoor or humid environments. We help you choose based on your substrate and exposure conditions.
Can you produce screws with custom lengths and head styles?
Yes, we offer full customization. Provide your specifications, and our engineering team will confirm feasibility and produce samples if needed.
Do you provide collated screws for auto-feed screwdrivers?
We supply collated screws in plastic or paper strips for high-volume installation, available in stainless steel grades. Please specify your collation type and screw dimensions.
What is your typical lead time for bulk orders?
Lead time depends on quantity and customization. For standard sizes, we can often ship within 2-3 weeks after order confirmation. Custom products may require additional time for tooling and sampling.
How do you ensure the quality of large shipments?
We follow a strict inspection protocol: first-piece, in-process, and final random sampling. Our quality team uses calibrated instruments to verify hardness, dimensions, and thread profile, ensuring each batch meets your specifications.