Contact Platform Support
Help Center
Home > Industrial Equipment & Components > Fastener & Fitting > Screw > Self Drilling Screw Flat Head With EPDM Washer 304 Stainless Steel for Wall Cladding High Hardness Factory Direct Full Sizes
Self Drilling Screw Flat Head With EPDM Washer 304 Stainless Steel for Wall Cladding High Hardness Factory Direct Full Sizes
Product Spotlights
304 stainless steel self drilling screws with EPDM washer – high hardness, flat head design for flush finish, factory direct full sizes. Corrosion resistant, self-sealing, suitable for wall cladding, metal roofing, and siding. Save installation time with no pre-drilling needed. Reliable sealing prevents leaks. Contact SENOTECH for competitive pricing and global delivery.
US$ 900 - 1050
MOQ: 1 Ton
Key Specifications
Get Latest Price
Material:
Other, 304 Stainless Steel
Washer Material:
EPDM
Head Type:
Flat Countersunk
Payment & Shipping
Payment Methods:
Port of Shipment:
Tianjin
Delivery Detail:
30 days
Related Products
-
Self Drilling Screw White Zinc Plated Hex Head for Industrial Construction 410 Stainless Steel Full Sizes Free SamplesUS$ 900 - 1050MOQ: 1 Ton -
Self Drilling Screw for Steel Framing Yellow Zinc Wafer Head C1022A Carbon Steel Bulk Packing China Manufacturer Quick InstallationUS$ 900 - 1050MOQ: 1 Ton
-
Ruspert Coated Self Drilling Screw C1022A Carbon Steel Hex Head for Metal Roofing Fast Drilling No Snapping Wholesale PriceUS$ 900 - 1050MOQ: 1 Ton
-
Tek Screws for Metal Roofing C1022A Carbon Steel Hex Head With EPDM Washer Dacromet High Hardness Full Sizes AvailableUS$ 900 - 1050MOQ: 1 Ton
-
1-Year Warranty Tek Screws Hex Head With EPDM Washer C1022A Carbon Steel Yellow Zinc for Industrial Construction Full Sizes AvailableUS$ 900 - 1050MOQ: 1 Ton
Material
Other, 304 Stainless Steel
Washer Material
EPDM
Head Type
Flat Countersunk
Drive Type
Cross Recess (Phillips)
Hardness
High Hardness (Heat Treated)
Application
Wall Cladding, Roofing, Metal Panels
Thread Type
Self-Drilling (Sharp Point)
Size Range
Full Sizes Available (Customizable)
Professional Self Drilling Screws – 304 Stainless Steel, Flat Head with EPDM Washer, High Hardness, Factory Direct
Welcome to Hefei SENOTECH New Materials Co., Ltd. As a reliable trading company established in 2020 with an annual export value of US$1–1.5 million, we specialize in providing high-quality fastening solutions for global construction projects. Our Self Drilling Screw Flat Head with EPDM Washer is engineered specifically for wall cladding applications, combining the corrosion resistance of 304 stainless steel with the sealing performance of EPDM rubber washers. The high-hardness heat treatment ensures superior driving performance, while the factory-direct supply guarantees competitive pricing and full size availability to meet diverse project needs.
Key Features and Technical Specifications
- Premium Material: 304 stainless steel (A2 grade) offers excellent corrosion resistance against moisture, chemicals, and UV exposure – ideal for outdoor wall cladding.
- EPDM Washer: EPDM rubber provides outstanding weather resistance, sealing the screw hole to prevent water ingress and thermal bridging.
- Flat Countersunk Head: Low-profile design sits flush with the cladding surface for a clean finish, reducing wind load and enhancing aesthetics.
- Self-Drilling Point: Sharp drill tip eliminates the need for pre-drilling, saving labor time and ensuring accurate placement in metal, wood, or plastic substrates.
- High Hardness: Heat-treated body achieves high core hardness (typically HRC 35-45), enabling penetration into steel substrates up to 1.5mm thick without deformation.
- Full Size Range: Available in diameters #6, #8, #10, #12, #14 and lengths from 3/4" to 4" (or metric equivalents). Custom sizes are offered upon request.
Typical Dimensional Table (Inch Series)
| Diameter | Thread Length | Drilling Capacity | Available Lengths |
|---|---|---|---|
| #8 (4.2mm) | Full thread | Up to 1.0mm steel | 3/4" – 2" |
| #10 (4.8mm) | Full thread | Up to 1.2mm steel | 1" – 3" |
| #12 (5.5mm) | Full thread | Up to 1.5mm steel | 1-1/2" – 4" |
| #14 (6.3mm) | Full thread | Up to 2.0mm steel | 2" – 4" |
Advantages and Benefits
- Time Savings: Self-drilling feature reduces installation steps – no pre-drilling, no pilot holes required, cutting labor costs by up to 30%.
- Reliable Seal: EPDM washer compresses to form a watertight barrier, preventing leaks even under heavy rain or snow conditions.
- Long Service Life: 304 stainless steel resists rust and corrosion, ensuring the fastener maintains integrity for decades in coastal or industrial environments.
- Versatility: Suitable for fiber cement panels, metal siding, wood cladding, composite materials, and insulated panels.
- Consistent Quality: Factory direct production with strict hardness and dimensional control – each batch is inspected for thread accuracy and drive depth.
Trusted by Global Customers
At Hefei SENOTECH New Materials Co., Ltd, we have built a strong reputation since 2020, with annual export value exceeding US$1 million, serving markets across North America, South America, Europe, Southeast Asia, Africa, and Oceania. Our commitment to quality and customer service has earned us partnerships with contractors, distributors, and OEM clients worldwide. We maintain a comprehensive stock of self drilling screws in full sizes, ensuring fast turnaround for urgent orders. Whether you need a specific drive type (Phillips, square, hex) or a custom packaging solution, we are ready to accommodate. Contact us today to request samples or a quotation – experience the reliability of SENOTECH fasteners.
Frequently Asked Questions (FAQ)
-
Q: Can these screws be used on metal roofs?
A: Yes, they are designed for metal cladding and roofing. The self-drilling tip easily penetrates steel substrates up to 1.5mm thick when used with the correct diameter. -
Q: How does the EPDM washer perform in extreme temperatures?
A: EPDM rubber remains flexible from -40°C to +120°C, maintaining its sealing properties in most climates. -
Q: Are these screws suitable for fiber cement boards?
A: Absolutely. The hardened drill point and sharp threads are effective for fiber cement, though we recommend using the #10 or #12 diameter for better holding. -
Q: What drive type is available?
A: Standard is Phillips cross recess (PH2 or PH3 depending on size). Square drive (Robertson) and hex head options are available upon request. -
Q: What is the minimum order quantity (MOQ)?
A: For standard sizes, MOQ is 5000 pieces per size. For custom sizes or special drives, please contact our sales team for negotiation. -
Q: Do you provide samples?
A: Yes, we can offer free samples for evaluation (shipping cost may apply). Please provide your details via inquiry. -
Q: How long does delivery usually take?
A: For in-stock items, delivery takes 7–15 days after order confirmation. Larger quantities may require 20–30 days depending on production schedule. -
Q: Can I get a certification of material or hardness?
A: Yes, Mill Test Certificates (MTC) for 304 stainless steel and hardness test reports are available upon request. Please specify when placing your order.
Send Inquiry to This Supplier
1Yr
Business Type
Trading Company
Year Established
2020
Annual Export Value
US$1 Million - US$1.5 Million
Main Markets
North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe, Central America, Northern Europe, Southern Europe, South Asia
You May Also Like
-
China Manufacturer Stainless Steel 410 Tek Screws Wafer Head EPDM Washer White Zinc No Snapping Full Sizes AvailableUS$ 900 - 1050MOQ: 1 Ton
-
C1022A Carbon Steel Tek Screws Hex Head With EPDM Washer Yellow Zinc for Metal Roofing No Snapping Full Sizes AvailableUS$ 900 - 1050MOQ: 1 Ton
-
China Manufacturer Roof Screws C1022A Carbon Steel White Zinc Plated 1 Year Warranty Against Snapping Bulk Packing Free SamplesUS$ 900 - 1050MOQ: 1 Ton
-
White Zinc Plated Roof Screws Wafer Head for Industrial Construction Stainless Steel 410 No Snapping Fast DrillingUS$ 900 - 1050MOQ: 1 Ton
-
Roof Screws for Metal Roofing Dacromet Coated Flat Head Self-Drilling Fast Drilling No Snapping Bulk Packing Wholesale PriceUS$ 900 - 1050MOQ: 1 Ton
-
Dacromet Coated Roof Screws Flat Head Self-Drilling Point for Steel Framing Fast Drilling Free Samples China ManufacturerUS$ 900 - 1050MOQ: 1 Ton
-
Stainless Steel 410 Roof Screws Yellow Zinc Plated Wafer Head No Snapping Bulk Packing for Metal RoofingUS$ 900 - 1050MOQ: 1 Ton
-
Flat Countersunk Square Neck DIN608/605 Zinc-Plated High-Strength Plow Bolt Carriage BoltNegotiableMOQ: 100 Boxes
-
DIN ANSI Standard Blue Dyed Cadmium Plated M8 M10 M12 M14 M16 Carbon Steel Brass Aluminium Cement Expansion BoltUS$ 0.01 - 0.1MOQ: 1000 Pieces
-
Hot Dip Galvanized Hex Bolt Grade 8.8 Carbon Steel Heavy DutyUS$ 0.01 - 0.1MOQ: 1000 Pieces
