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Hex Head Roofing Screws With Drill Point Factory

Custom Hex Head Self Drilling Screws Manufacturers

Hex head self-drilling screws, commonly known as hex flange drill-point screws, are high-strength, integrated fasteners designed for heavy-duty metal fastening. Conforming to the GB/T 15856.5 national standard, they integrate drilling, tapping, and fastening into a single operation, eliminating the need for pre-drilling and allowing for one-step panel installation.

The core feature of this product is its integrated external hex flange head. The head boasts a standard, precise hexagonal structure with high hardness, making it compatible with various tools such as sockets, electric wrenches, and ratchet wrenches. It provides uniform stress distribution and high torque-bearing capacity, ensuring it does not slip or break during installation, making it better suited for high-power fastening tasks than cross-recessed pan-head screws. The underside of the hex head features a widened, integrated flange that disperses clamping pressure, preventing the deformation of thin steel plates under load. When used with a matching waterproof rubber washer, it provides sealing and waterproofing for roof joints, serving the multiple functions of limiting, pressure-bearing, and waterproofing.

The shank is equipped with a specialized cutting drill point that meets strict hardness requirements, allowing it to penetrate various thicknesses of metal plates directly and automatically tap and lock the threads. The products are available in a variety of materials, including zinc-plated carbon steel, 410 stainless steel, and 304/316 stainless steel, to suit different working conditions ranging from standard indoor use to outdoor and coastal corrosion-resistant environments. Offering excellent vibration resistance, stability against loosening, and convenient installation and removal, these screws are widely used for connecting metal components in steel-structure workshops, color-steel roofing, photovoltaic mounting systems, light-gauge steel keels, and curtain wall ducting, making them the mainstream fastening accessory for industrial construction and steel-structure engineering.

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About Us
Anhui Linghong Hardware Technology Co., Ltd.

Anhui Linghong Hardware Technology Co., Ltd. is China Custom Hex Head Roofing Screws With Drill Point Manufacturers and Hex Head Self Drilling Screws Factory, founded in 2017, covering an area of 30 mu with 12,600 square meters of standardized workshops and office buildings. Formerly known as Shanghai Linghong Fasteners Co., Ltd., the company has inherited its core management and production backbone team, and follows the mature operation system formed through 16 years of steady development of Shanghai Linghong. We offer Hex Head Self Drilling Screws for sale.
The company is equipped with more than 80 sets of production equipment, with a stable monthly capacity of approximately 500 tons. It specializes in the production of a full range of screws, including wood screws, chipboard screws, drywall screws, self-drilling screws, self-tapping screws, plasterboard screws, wallboard screws, corrugated screws, and other products. The company has a professional-quality management team and is equipped with precision testing instruments, including metallographic polishing machines and Rockwell hardness testers. Through strict control over first-piece inspection, in-process inspection, and the whole ex-factory process, it ensures the qualified quality of each batch of products with strong quality inspection capabilities. Meanwhile, the company has established a complete packaging system and an experienced management team, adopting a production model of "intelligent and mechanized production as the mainstay, supplemented by manual work". Adhering to excellent quality and a good reputation, the company provides customers with cost-effective, high-quality products.
With over 20 years of deep engagement in the fastener industry, Anhui Linghong Hardware Technology Co., Ltd. upholds the business philosophy of "Quality First, Integrity-Based", and is a comprehensive enterprise integrating design, development, production, and sales. Relying on over 20 years of accumulated production management experience and foreign trade export strength, the company has passed ISO 9001 Quality Management System, ISO 14001 Environmental Management System, and ISO 45001 Occupational Health and Safety Management System certifications, and established mature overseas sales channels. At present, the company exports 40 to 50 containers to Australia and about 10 containers to Europe and Japan every month, with annual sales exceeding 200 million RMB. The company sincerely welcomes customers at home and abroad to contact us for business negotiations and win-win cooperation!

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Hex Head Self-Drilling Screws

High-strength fasteners that drill, tap, and fasten in one operation. Designed for heavy-duty metal-to-metal and metal-to-wood connections in industrial construction, roofing, and structural steel applications.

Our Position as a Manufacturer

Anhui Linghong Hardware Technology Co., Ltd. is a China-based Hex Head Self-Drilling Screws manufacturer and supplier with over 20 years of fastener industry experience. We operate a 12,600 m² factory equipped with more than 80 production lines, achieving a stable monthly output of approximately 500 tons. Our hex head self-drilling screws are produced under ISO 9001, ISO 14001, and ISO 45001 certified management systems, with rigorous in-house quality control from first-piece inspection to final ex-factory checks.

We supply standard and custom hex head self-drilling screws for global B2B projects, exporting 40–50 containers to Australia and about 10 containers to Europe and Japan each month. Our engineering team supports OEM/ODM requirements, ensuring that each batch meets your specific dimensional, material, and performance specifications.

Product Range and Application Fit

Our hex head self-drilling screws are available in several configurations to match different installation methods and environmental conditions. The table below summarizes the main types we manufacture and their typical uses.

Type Head Style Typical Applications
Standard Hex Head Hexagonal, with or without flange Steel framing, metal roofing, general metal fastening
Hex Flange Head Hex with integrated flange Thin steel plates, where load distribution is critical
Hex with Washer Hex head with bonded or EPDM washer Roofing and cladding where waterproofing is required
Reduced-Tip Hex Hex head with reduced drill point Australian Type 3 applications, thicker steel sections
Cross Recess Hex Hex head with cross recess drive When both hex and Phillips drivers are needed

We also produce hex head self-drilling screws in stainless steel (SS304, SS316, 410) for coastal or corrosive environments, and in carbon steel with various coatings (zinc, Ruspert, painted) for indoor and outdoor use. Our range includes sizes from #10 to #14 and lengths from 16 mm to 75 mm, with custom dimensions available on request.

Engineering and Configuration Approach

Each hex head self-drilling screw is engineered to meet the demands of your specific joint. We consider the thickness and hardness of the materials to be fastened, the required pull-out and shear strength, and the environmental exposure. Our drill point geometry is designed to penetrate steel up to 12 mm thick without pre-drilling, while the thread form ensures secure engagement and vibration resistance.

We offer several configuration options to match your installation tools and performance needs:

  • Head drive: Hex, hex flange, or cross recess for socket, wrench, or screwdriver compatibility.
  • Washer assembly: Bonded washers for sealing, EPDM washers for weatherproof roofing, or no washer for clean metal joints.
  • Point type: Standard drill point, reduced-tip for thicker steel, or self-drilling with cutting edges for faster penetration.
  • Coating/finish: Zinc plating, Ruspert, painted heads (e.g., ivory white, tile red, black), or plain stainless steel.

Quality Assurance and Testing

Our quality management team uses precision instruments, including metallographic polishing machines and Rockwell hardness testers, to verify hardness, case depth, and coating integrity. We perform first-piece inspection, in-process patrol inspection, and final random sampling before packing. Each batch is traceable, and we can provide material certificates and test reports upon request.

We also conduct installation tests to confirm that the drill point performs as expected on representative material samples. This ensures that your production line or construction crew will not face unexpected delays due to fastener failure.

Packaging, Delivery, and Support

We package hex head self-drilling screws in boxes, cartons, or bulk packs according to your specifications. Our export experience ensures that packaging is robust for sea freight, and we can provide palletization and labeling as required. We maintain a stable monthly capacity of 500 tons, so we can handle both large-volume orders and urgent restocks.

Our sales and engineering teams work closely with you from sample approval to final delivery. We provide technical documentation, including dimensional drawings and installation guidelines, to support your project planning.

Information We Use to Configure Your Solution

To prepare an accurate quotation and production plan, please provide the following details:

  • Material to be fastened (e.g., steel thickness, aluminum, wood) and its hardness.
  • Required screw size (diameter and length) or the specific model number.
  • Head style and drive type (hex, flange, cross recess).
  • Washer requirement (bonded, EPDM, none).
  • Material grade (carbon steel, stainless steel) and coating/finish.
  • Quantity per order and target delivery date.
  • Any applicable standards (e.g., GB/T 15856.5, Australian Type 3) or performance requirements.

Frequently Asked Questions

Q: Can you produce hex head self-drilling screws with custom lengths and coatings?

A: Yes, we offer custom manufacturing. Provide your required dimensions, material, and finish, and we will produce samples for your approval before mass production.

Q: What is the typical lead time for a container order?

A: Lead time depends on the quantity and customization level. For standard sizes, we can often ship within 2–3 weeks after order confirmation. Custom orders may require additional time for tooling and sampling.

Q: Do you provide test reports or certificates for each batch?

A: Yes, we can provide material certificates, hardness test reports, and coating thickness reports. Our quality system is ISO 9001 certified, and we follow strict inspection procedures.

Q: Are your hex head self-drilling screws suitable for outdoor roofing applications?

A: Absolutely. We offer screws with EPDM washers and corrosion-resistant coatings (e.g., Ruspert, painted heads) specifically designed for roofing and cladding. For coastal areas, we recommend stainless steel grades.

Q: Can you match a specific standard like Australian Type 3?

A: Yes, we produce reduced-tip hex head self-drilling screws that meet Australian Type 3 requirements. We have experience exporting to Australia and understand the relevant specifications.

Related Products and Categories

Our portfolio also includes Products, Wood Screw, Carbon Steel Wood Screws for applications with different operating ranges, interfaces or integration requirements.