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High Hardness Tek Screws Hex Head With EPDM Washer C1022A Carbon Steel Ruspert Fast Drilling Full Sizes Available
Product Spotlights
High hardness self-drilling Tek screws (C1022A carbon steel, 48-52 HRC) with EPDM washer and Ruspert anti-corrosion coating. Hex head for high torque. Full sizes (#8-#14, 3/4"-6") available. Ideal for metal roofing, steel structures, quick installation, leak-proof sealing, and long-term durability.
US$ 900 - 1050
MOQ: 1 Ton
Key Specifications
Get Latest Price
Material:
Other, C1022A Carbon Steel
head_type:
Hexagon
washer_material:
EPDM Rubber
Payment & Shipping
Payment Methods:
Port of Shipment:
Tianjin
Delivery Detail:
30 days
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Material
Other, C1022A Carbon Steel
head_type
Hexagon
washer_material
EPDM Rubber
surface_finish
Ruspert Coating
hardness
High Hardness (48-52 HRC)
thread_type
Self-Drilling (Tek)
size_range
Full sizes available (e.g., #8-#14, lengths 3/4“-6“)
application
Metal roofing, steel structures, wood to metal
Hefei SENOTECH New Materials Co., Ltd is a reliable trading company that has been serving global clients since 2020, with an annual export value of US$1 million to US$1.5 million. We are proud to offer our High Hardness Tek Screws Hex Head with EPDM Washer (C1022A Carbon Steel, Ruspert Coating, Full Sizes Available) – a premium fastening solution designed for demanding applications in metal roofing, steel framing, and general construction. These self-drilling screws combine high strength, corrosion resistance, and a dependable sealing washer to deliver both speed and long-term performance. Whether you need a standard size or a custom specification, our flexible supply chain ensures you get exactly what your project requires.
Product Features & Technical Specifications
- High Hardness & Fast Drilling: Made from C1022A carbon steel with a hardness of 48–52 HRC, these screws can drill through steel up to 1/4" (6.4 mm) in a single operation, eliminating the need for pre-drilling and significantly reducing installation time.
- Hex Head Design: The hexagon head allows for high torque transfer from impact drivers or screwdrivers, ensuring secure setting even in tough materials. No cam-out issues like Phillips heads.
- EPDM Washer for Sealing: Each screw comes with a pre-assembled EPDM (ethylene propylene diene monomer) washer that provides excellent resistance to UV, ozone, and temperature extremes (–40°C to 120°C). The tight seal prevents water ingress and protects against corrosion around the fastener hole.
- Ruspert Anti-Corrosion Coating: The proprietary Ruspert coating is applied to the screw body and head, offering superior protection against salt spray and harsh weather. This extends fastener life in coastal or industrial environments without additional post-installation maintenance.
- Full Sizes Available: We stock a comprehensive range of diameters (e.g., #8, #10, #12, #14) and lengths (3/4" to 6" or longer upon request) to match various assembly thicknesses. Custom sizes can be produced with minimum order quantity flexibility.
| Parameter | Value Range |
|---|---|
| Material | C1022A Carbon Steel |
| Hardness | 48 – 52 HRC (Rockwell C) |
| Head Style | Hexagon, 5/16" or 3/8" |
| Washer Material | EPDM Rubber (pre-assembled) |
| Coating Type | Ruspert (anti-corrosion, salt spray resistant) |
| Diameter Options | #8, #10, #12, #14 (0.164" to 0.242") |
| Length Options | 3/4" to 6" (customizable) |
| Drilling Capacity | Up to 1/4" (6.4 mm) steel |
| Thread Type | Self-drilling (Tek point) with fine threading |
Advantages & Customer Benefits
- Eliminates Pre-Drilling: The self-drilling point cuts through metal quickly, saving up to 50% of installation labor compared to ordinary self-tapping screws. This directly reduces project costs.
- Reliable Weatherproof Sealing: The EPDM washer compresses to form a watertight seal around the fastener hole, preventing leaks in roofing or siding applications. It remains flexible in extreme cold and does not harden over time.
- Long-Term Corrosion Protection: With Ruspert coating, these screws resist red rust even after 1,000 hours of salt spray testing (typical performance – actual data available upon request). This makes them ideal for coastal regions, chemical plants, or any outdoor environment.
- Reduced Rework & Maintenance: High hardness means the drill point does not dull easily, ensuring consistent performance across multiple installations. Screws grip securely without stripping, reducing callbacks and warranty claims.
- Versatile Application: Suitable for fastening metal sheets to metal substructures, wood to metal, or insulation panels to steel. The hex head works with common power tools, and the available pack sizes cater to both small workshops and large-scale projects.
Hefei SENOTECH New Materials Co., Ltd has built a strong reputation in North America, South America, Europe, Africa, Oceania, and the Middle East since 2020. With annual exports exceeding US$1 million, we consistently deliver quality fasteners that meet international standards. Our team can provide quality certificates, samples, and tailored packaging upon request. We also support OEM/ODM services and offer competitive pricing for bulk orders.
If you are seeking a reliable partner for high‑hardness Tek screws with EPDM washers, we invite you to contact us today. Let us help you improve assembly efficiency, reduce lifetime costs, and achieve stronger, leak‑free connections in your next project.
Frequently Asked Questions (FAQ)
-
Q: What is the maximum metal thickness these screws can drill?
A: These Tek screws can drill through steel up to 1/4" (6.4 mm) in a single pass. For thicker materials, a pilot hole may be required; please contact us for specific recommendations. -
Q: Are the EPDM washers UV resistant?
A: Yes, EPDM rubber is inherently resistant to UV radiation and ozone, making it suitable for exposed roofing and outdoor applications. The washers maintain their sealing properties for years under sunlight. -
Q: Does the Ruspert coating contain any banned substances?
A: The coating is free of hexavalent chromium and meets RoHS and REACH requirements. A material safety data sheet (MSDS) and test reports are available upon request. -
Q: Can I get these screws with a different head style, like Phillips or Torx?
A: Yes, we can customize the head type (e.g., Phillips, Torx, square drive) based on your order quantity. Please discuss with our sales team for minimum order details. -
Q: What is the minimum order quantity (MOQ)?
A: For standard sizes and finishes, the MOQ is typically 50,000 pieces per diameter/length combination. For customized products or urgent orders, we can negotiate lower quantities with a small surcharge. -
Q: Can these screws be used for fastening wood to metal?
A: Absolutely. The self-drilling point works well in wood, and the threads are designed to grip both materials. The EPDM washer provides sealing when used on the outer side of the assembly. -
Q: How can I verify the hardness of the screws?
A: We can provide a test report showing hardness values in HRC. Additionally, you may request random samples from the same production batch for third-party testing. -
Q: Do you offer packaging in smaller quantities for retail?
A: Yes, we offer retail-ready packaging (e.g., boxes of 100, 250, or 500 screws) with your brand or neutral design. Bulk packaging in cartons or pallets is also available.
Send Inquiry to This Supplier
1Yr
Business Type
Trading Company
Year Established
2020
Annual Export Value
US$1 Million - US$1.5 Million
Main Markets
North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe, Central America, Northern Europe, Southern Europe, South Asia
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