Contact Platform Support
Help CenterStainless Steel 410 Drilling Screw White Zinc Wafer Head With EPDM Washer High Hardness for Metal Roofing
Product Spotlights
Related Products
-
Drilling Screw for Industrial Construction Wall Cladding 410 Stainless Steel Yellow Zinc Full Sizes Free SamplesUS$ 900 - 1050MOQ: 1 Ton -
Drilling Screws for Wall Cladding C1022A Carbon Steel White Zinc Flat Head No Snapping Full SizesUS$ 900 - 1050MOQ: 1 Ton
-
Ruspert Coated Drilling Screws for Steel Framing Hex Head Full Sizes C1022A Carbon Steel No SnappingUS$ 900 - 1050MOQ: 1 Ton
-
China Manufacturer C1022A Carbon Steel Drilling Screws Yellow Zinc Flat Head Full Sizes Fast Drilling No SnappingUS$ 900 - 1050MOQ: 1 Ton
-
Drilling Screws for Metal Roofing With EPDM Washer Hex Head 410 Stainless Steel Full Sizes Fast DrillingUS$ 900 - 1050MOQ: 1 Ton
Hefei SENOTECH New Materials Co., Ltd is proud to present our Stainless Steel 410 Drilling Screw with White Zinc Wafer Head and EPDM Washer, engineered specifically for demanding metal roofing applications. As a trusted trading company since 2020, we have supplied high-performance fasteners to over 10 global regions including North America, Europe, and Southeast Asia. Our screws combine the corrosion resistance of 410 stainless steel with a durable white zinc finish, ensuring long-term reliability in harsh environments. The integrated EPDM washer creates a watertight seal, preventing leaks and protecting your investment.
These self-drilling screws feature a wafer head design that provides a low profile and smooth finish, ideal for metal panels where aesthetics matter. The high hardness (achieved through heat treatment) allows the screw to penetrate tough steel substrates without stripping or breaking, reducing installation time and labor costs. Whether you are a roofing contractor or a building materials distributor, this screw delivers consistent performance.
Key Features & Technical Specifications
- Material: Premium 410 Stainless Steel – offers excellent hardness and moderate corrosion resistance, suitable for indoor and outdoor metal roofing.
- Surface Treatment: White Zinc Plating – provides additional corrosion protection and a clean, uniform appearance.
- Head Style: Wafer Head – low-profile countersunk design sits flush with the panel surface.
- Sealing Washer: EPDM rubber washer bonded to the screw – resists UV, ozone, and weathering, ensuring a leak-proof seal over decades.
- Hardness: High hardness (typically HRC 35-45) after heat treatment – enables drilling up to 12 gauge steel without pre-drilling.
- Drilling Point: Self-drilling point (e.g., #2 or #3 drill point) – eliminates the need for pilot holes in steel framing.
- Thread: Sharp, aggressive thread design for quick engagement and strong holding power in thin metal.
- Customizable Size: Available in diameters from #8 to #14 and lengths from 1/2” to 3” (or metric equivalents) – contact us for your specific needs.
Performance Overview
| Parameter | Value |
| Material Hardness (HRC) | 35 – 45 (after heat treatment) |
| Drilling Capacity (Steel) | Up to 12 gauge (2.7 mm) – typical metal roofing |
| Washer Temperature Range | -40°C to 120°C (EPDM washer) |
| Corrosion Resistance (Salt Spray) | ≥ 72 hours (white zinc + 410SS) |
| Drive Type | Phillips, Hex, or Square (customizable) |
| Packaging | Boxes, Bulk bags, or OEM packing |
The self-drilling wafer head screw is designed to cut through metal panels and secure them to steel framing in one swift operation. The EPDM washer compresses to form a tight seal, preventing water ingress around the screw hole – a critical advantage for metal roofs that experience rain and snow. High hardness ensures the drill point does not dull quickly, even when fastening into thick purlins. Contractors report up to 30% faster installation compared to conventional screws that require pre-drilling.
Benefits for Your Business
- Reduced Labor Costs: One-step drilling and fastening eliminates extra steps.
- Long-Term Reliability: Stainless steel 410 plus EPDM washer resists rust and leaks for decades.
- Versatility: Suitable for various metal roof profiles (trapezoidal, corrugated, standing seam) and even for fiberglass panels.
- Consistent Quality: Every batch is inspected for hardness, thread accuracy, and washer adhesion.
- Flexible Sourcing: We offer competitive pricing for B2B volumes and can customize packaging with your brand.
Why Choose Hefei SENOTECH?
Since our establishment 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 all major European regions. We understand the diverse requirements of metal roofing projects and have built a reputation for reliable delivery and consistent quality. Our team is ready to support you with technical data sheets, samples, and tailored solutions. By choosing our 410 Stainless Steel Drilling Screw with EPDM Washer, you invest in a fastener that reduces callbacks and enhances the overall performance of your roofing system.
Contact us today to request a quote or sample. Let Hefei SENOTECH be your trusted partner for high-hardness metal roofing screws.
Frequently Asked Questions
-
Q: What is the difference between 410 stainless steel and 304 for roofing screws?
A: 410 stainless steel offers higher hardness (heat-treatable) which is ideal for self-drilling into steel. 304 is softer but more corrosion resistant. For metal roofing, 410 provides a good balance of hardness and rust resistance, especially when paired with a white zinc coating. -
Q: Can these screws be used with wood framing?
A: Yes, but they are optimized for steel framing. For wood, a different point type (e.g., wood screw thread) is recommended. However, the wafer head and EPDM washer can still seal well on wood substrates if needed. -
Q: How do I choose the right size for my metal roof?
A: The screw length should be at least 1/2” longer than the total thickness of the panel and the framing material. Common sizes are #12-14 x 1” to 2”. Our technical team can help you calculate based on your specific panel and substructure. -
Q: Is the EPDM washer replaceable or bonded?
A: The EPDM washer is factory-bonded to the screw, ensuring a permanent seal. It is not designed to be replaced. If a washer is damaged, we recommend using a new screw. -
Q: Does the white zinc coating chip off during installation?
A: The coating is applied by electroplating and has good adhesion. Some minor wear at the drilling point is normal, but the overall corrosion protection remains effective. The 410 stainless steel substrate provides additional resistance. -
Q: What is the minimum order quantity (MOQ)?
A: MOQ depends on size and packaging. For standard sizes, we typically start at 10,000 pieces. Smaller quantities may be available for sample orders. Contact us for exact terms. -
Q: Can you provide custom packaging with our company logo?
A: Yes, we offer OEM packaging options. Please provide your design specifications during the order process. -
Q: How do you ensure the hardness consistency across production batches?
A: We perform hardness testing on a sample from each heat treatment batch. Our quality control records are available upon request. The typical HRC range is 35-45, but we can tighten the specification if your project requires.
Send Inquiry to This Supplier
You May Also Like
-
Factory Direct Drilling Screws 1 Year Warranty Mill Test Report Available 410 Stainless Steel Hex Head Full SizesUS$ 900 - 1050MOQ: 1 Ton
-
Factory Direct Self Drilling Screws 410 Stainless Steel Flat Head Bulk Packing Fast Drilling Full SizesUS$ 900 - 1050MOQ: 1 Ton
-
Stainless Steel 410 Drilling Screws Wafer Head With EPDM Washer High Hardness Fast Drilling Full Sizes AvailableUS$ 900 - 1050MOQ: 1 Ton
-
Wholesale Price Drilling Screws for Metal Roofing With Dacromet Coating Hex Head Full SizesUS$ 900 - 1050MOQ: 1 Ton
-
Stainless Steel 410 Self Drilling Screws Yellow Zinc Hex Head for Steel Framing Full Sizes AvailableUS$ 900 - 1050MOQ: 1 Ton
-
Self Drilling Screws for Steel Framing Hex Head Yellow Zinc Coated C1022A Carbon SteelUS$ 900 - 1050MOQ: 1 Ton
-
Full Sizes C1022A Carbon Steel Self Drilling Screws Yellow Zinc Hex Head for Wall CladdingUS$ 900 - 1050MOQ: 1 Ton
-
Ruspert Coated Self Drilling Screws Flat Head With EPDM Washer Full Sizes for Industrial ConstructionUS$ 900 - 1050MOQ: 1 Ton
-
C1022A Carbon Steel Self Drilling Screws High Hardness Fast Drilling No Snapping Wafer Head for Metal RoofingUS$ 900 - 1050MOQ: 1 Ton
-
Self Drilling Screws No Snapping High Hardness Stainless Steel 410 Dacromet Coated Hex HeadUS$ 900 - 1050MOQ: 1 Ton
