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Help CenterFactory Direct Self Drilling Screws With Mill Test Report C1022A Carbon Steel Bulk Packing
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Welcome to Hefei SENOTECH New Materials Co., Ltd, your trusted partner for high-quality fasteners. Our Factory Direct Self Drilling Screws made from C1022A Carbon Steel are designed for demanding applications. With a Mill Test Report provided for every batch, we ensure material traceability and consistency. Bulk packing makes them ideal for large-scale projects, offering cost savings without compromising quality.
- C1022A Carbon Steel: This material offers an excellent balance of hardness and ductility, making the screws suitable for fastening into metal substrates without breaking.
- Heat Treatment: The screws undergo controlled heat treatment to achieve the required hardness for effective self-drilling, typically in the range of HRC 35-45.
- Mill Test Report: Each shipment includes a detailed report confirming chemical composition and mechanical properties, providing full transparency for quality control.
- Self-Drilling Point: The unique drill point eliminates the need for pre-drilling, saving time and labor. Available in #2, #3, and #5 point styles for different thicknesses.
- Thread Design: Full thread profile ensures strong engagement with the base material. Coarse threads for quick driving in thin metal, fine threads for better grip in thicker sections.
- Head Options: Hex washer head for high torque driving, or pan head for flush finish. Custom head types available upon request.
| Size | Thread Diameter (inch) | Length Range (inch) | Drill Point |
| #6 | 0.138 | 3/4 - 2 | #2 |
| #8 | 0.164 | 3/4 - 3 | #2 / #3 |
| #10 | 0.190 | 3/4 - 4 | #3 / #5 |
| #12 | 0.216 | 1 - 6 | #5 |
| #14 | 0.250 | 1 - 6 | #5 |
Additional options include zinc plating for corrosion resistance and custom surface treatments such as black phosphate or mechanical galvanizing. Bulk packing can be provided in cartons, pails, or drums to suit your inventory needs.
- Cost Savings: Factory direct pricing and bulk packing reduce per-unit costs significantly.
- Time Efficiency: Self-drilling design eliminates pre-drilling steps, speeding up installation.
- Quality Assurance: Mill test report ensures material compliance; consistent heat treatment guarantees reliable performance.
- Flexible Customization: Various sizes, head types, and coatings available; low MOQ for custom orders.
- Global Reach: We export worldwide with efficient logistics and timely delivery.
As a dynamic trading company established in 2020, Hefei SENOTECH New Materials Co., Ltd has achieved an annual export value of US$1 Million to US$1.5 Million. Our products reach markets across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and beyond. We are committed to providing reliable fastening solutions with consistent quality and competitive pricing. With our factory-direct supply chain, we offer short lead times and flexible packing options.
Every shipment is backed by a Mill Test Report for traceability. Our team is ready to assist with custom requirements, from special sizes to specific surface treatments. Contact us today to discuss your project needs and request a quote. Experience the SENOTECH advantage: quality you can trust, delivered on time.
Q: Are these screws suitable for stainless steel applications?
A: While C1022A carbon steel is designed for metal-to-metal fastening in mild steel, we recommend using our stainless steel self-drilling screws for corrosive environments. Please contact us for alternatives.
Q: Do you provide samples?
A: Yes, samples are available upon request. Please cover the shipping cost, and we can arrange small quantities for testing.
Q: What is the minimum order quantity (MOQ)?
A: For bulk packing, our MOQ is typically 1,000 pieces per size. For mixed sizes, please discuss with our sales team.
Q: Can I get custom lengths or head types?
A: Absolutely. Custom lengths, head types, and coatings are available subject to MOQ. Send us your specifications.
Q: What is the lead time for bulk orders?
A: Standard lead time is 15-25 days after order confirmation, depending on quantity and customization.
Q: How are the screws packed?
A: Bulk packing options include cartons, pails, or drums. Inner packaging can be poly bags or small boxes as needed.
Q: Is the Mill Test Report included for every batch?
A: Yes, we provide a mill test report for each production lot to ensure chemical and mechanical compliance.
Q: Do you ship worldwide?
A: Yes, we export to all major markets worldwide, including North America, Europe, Asia, Africa, and Oceania.
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