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Help CenterDrilling Screw for Metal Roofing Steel Framing Hex Head With EPDM Washer C1022A Carbon Steel Fast Drilling
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Hefei SENOTECH New Materials Co., Ltd is proud to introduce our premium Drilling Screw for Metal Roofing Steel Framing – a high-performance fastener engineered to deliver reliable and long-lasting connections in demanding construction environments. Manufactured from C1022A Carbon Steel with a sharp drill point, these hex-head screws cut through metal quickly without pre-drilling, saving time and labor. The integrated EPDM washer forms a tight seal against moisture, ensuring weatherproof performance for roofing and siding applications. Backed by over US$1 million in annual exports to markets across North America, Europe, Asia, and beyond, our screws meet the rigorous standards of professional contractors and industrial builders.
Whether you are installing metal roof panels, fastening steel framing members, or securing insulation boards, this screw combines speed, strength, and corrosion resistance. The hex head accommodates power tools for rapid installation, while the self-drilling tip reduces material stress and prevents stripping. Below, we detail the key technical features and benefits that make our drilling screw a trusted choice for commercial and residential projects worldwide.
Key Features & Benefits
- Fast Drilling Technology: The self-drilling point eliminates the need for pilot holes, cutting through steel up to 0.125" thick in seconds. This reduces installation time by up to 50% compared to traditional screws.
- EPDM Washer Sealing: The bonded EPDM rubber washer compresses under the hex head to form a watertight seal. Prevents leaks, rust, and corrosion around the fastener entry point – ideal for metal roofing exposed to rain or snow.
- High-Strength Material: Made from C1022A carbon steel (case hardened to Rockwell C 20-25) with a tough core, the screw withstands high torque without snapping. Suitable for structural steel framing and heavy-gauge metal panels.
- Hex Head Design: The 3/8" hex head provides excellent grip for socket or magnetic bit drivers. Reduces cam-out and ensures consistent torque transmission during high-speed installation.
- Corrosion Protection: Standard zinc plating offers good resistance to indoor and mild outdoor environments. Optional coatings (e.g., ceramic, Xylan) are available for coastal or harsh chemical exposure.
- Versatile Applications: Specifically designed for metal roofing, steel framing, siding, gutters, fencing, and HVAC ductwork. Works with both light-gauge and structural steel members.
Technical Specifications (Typical)
| Screw Diameter | #12, #14, 1/4" (other sizes customizable) |
| Length Range | 1/2" to 3" (standard); up to 6" available on request |
| Drill Point Type | Type 2 (self-drilling) / Type 3 (heavy duty) |
| Thread Pattern | Coarse thread for metal; fine thread optional |
| Washer Hardness | Shore A 65±5 EPDM |
| Tensile Strength | ≥ 140,000 psi (core) |
| Temperature Range | -40°F to +250°F (continuous) |
| Packaging | Bulk, boxes, or blister packs; OEM/private label welcome |
Why Choose Hefei SENOTECH Fasteners?
Since 2020, we have been supplying high-quality construction fasteners to international markets with annual exports exceeding US$1 million. Our drilling screws are tested for consistent drilling performance, shear strength, and seal integrity. We serve customers from North America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and South America, ensuring each shipment meets strict quality requirements via in-house inspections and third-party reports upon request.
Our team offers custom length, head style, washer color, and coating options to match your specific project needs. With a logistics network covering major global ports, we deliver on time and provide competitive pricing for bulk orders. We stand behind every screw with responsive after-sales support and a commitment to solving your fastening challenges.
Ready to improve your roofing or steel framing installation efficiency? Contact us for samples, technical datasheets, or a direct quotation. Our sales engineers are available to help you select the right screw configuration for your application. Trust Hefei SENOTECH for fasteners that perform – from the first screw to the last.
Frequently Asked Questions
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Q: Can these screws be used on both steel and wood?
A: While optimized for metal-to-metal fastening (steel framing and metal roofing), the self-drilling point can also penetrate thin wood (up to 1/2") if needed. For pure wood applications, we recommend using standard wood screws. -
Q: How long does the EPDM washer last in UV exposure?
A: EPDM rubber has excellent UV and ozone resistance. Under normal outdoor conditions (including sunlight), the washer can perform reliably for 15-20 years without cracking or losing seal integrity. -
Q: Do you offer different head colors to match roofing panels?
A: Yes – we can provide painted hex heads (e.g., white, brown, red, gray) to blend with common roof profiles. Custom RAL colors are available for minimum order quantities, please inquire with your requirements. -
Q: What is the maximum steel thickness these screws can drill?
A: The standard drill point can penetrate steel up to 0.125" (1/8"). For thicker steel (up to 0.250"), we recommend using our heavy-duty self-drilling variant with a stronger tip. Please consult our technical team for the optimal selection. -
Q: Are these screws suitable for coastal environments?
A: Standard zinc plating offers moderate corrosion resistance. For coastal or chemical exposure, we suggest optional ceramic coating or a stainless steel alternative. Contact us for a sample set to test in your environment. -
Q: What is the minimum order quantity (MOQ)?
A: For stock sizes (e.g., #12 x 1-1/2"), MOQ is 10,000 pieces. For custom lengths or coatings, MOQ is typically 50,000 pieces. We can also arrange sample packages (100-500 pcs) for evaluation. -
Q: Do you provide third-party testing reports?
A: Yes. We can provide reports for mechanical properties (torque, tensile, hardness) and corrosion resistance (salt spray test) from accredited laboratories. Please request at the time of inquiry. -
Q: How are the screws packaged for export?
A: We use strong cardboard boxes with poly liners inside, then palletize and wrap with stretch film to prevent moisture. Cartons are labeled with product details, quantity, and lot number for traceability.
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