Ruspert Roof Screws With EPDM Washer C1022A Carbon Steel Hex Head Full Sizes Available High Hardness Bulk Packing
Product Spotlights
Welcome to Hefei SENOTECH New Materials Co., Ltd – your reliable partner for premium roofing fasteners. Established in 2020 and exporting over US$1 million annually to global markets including North America, Europe, and Southeast Asia, we are proud to introduce our Ruspert Roof Screws with EPDM Washer C1022A Carbon Steel Hex Head. These screws combine advanced surface technology with robust material science to deliver exceptional durability and sealing performance, making them an ideal choice for metal roofing and cladding applications worldwide.
Our screws feature a Ruspert coating – a highly corrosion-resistant treatment that outperforms traditional zinc plating, especially in harsh environments. The EPDM washer bonded to the hex head provides a watertight seal, preventing leaks and protecting the roof structure. Manufactured from C1022A carbon steel, these screws offer high hardness and strength, ensuring long-lasting performance under heavy loads and temperature variations. With full sizes available and bulk packing options, we cater to both small projects and large-scale installations.
Key Features & Benefits
- Ruspert Surface Treatment: Advanced anti-corrosion coating provides up to 3x longer service life than standard zinc-plated screws, ideal for coastal or high-humidity regions.
- EPDM Washer (Ethylene Propylene Diene Monomer): Provides excellent UV resistance, ozone resistance, and elasticity. The washer compresses tightly against the roof panel, creating a secure seal that prevents water ingress.
- C1022A Carbon Steel Material: Offers high tensile strength and hardness (typically HRC 28-35), suitable for penetrating tough roofing materials like steel sheets, polycarbonate, and fiber cement.
- Hex Head Design: Allows easy installation with standard power tools, providing greater torque transfer and reducing cam-out during driving.
- Full Size Availability: Range from #12 diameter to 1/4 inch, with lengths from 1 inch to 8 inches (or metric equivalents). Custom lengths available upon request.
- Bulk Packing: Available in cartons, pallets, or custom packaging to reduce per-unit cost and meet large project demands.
Technical Specifications
| Parameter | Value |
|---|---|
| Material | Carbon Steel C1022A |
| Hardness (Core) | HRC 30-35 (Typical) |
| Coating Thickness | 12-18 μm (Ruspert) |
| Washer Material | EPDM Rubber (Shore A 70±5) |
| Washer Outer Diameter | 14 mm, 16 mm, 19 mm (size-dependent) |
| Thread Type | Self-drilling or self-tapping (optional) |
| Drive Type | Hex Socket (5/16" or 8 mm) |
| Temperature Range | -40°C to +120°C |
| Packing Options | Bulk: 1000-5000 pcs/box; Pallet: 40-50 boxes |
Why Choose SENOTECH?
As a trusted trading company with annual exports of US$1 million – US$1.5 million, we serve customers across North America, South America, Europe, Africa, Oceania, and Asia. Our Ruspert Roof Screws have been tested in real-world conditions and are favored by contractors for their consistent quality and reliable sealing. Every batch undergoes strict dimensional and hardness inspection before shipment.
We understand the importance of on-time delivery and competitive pricing. Our bulk packing reduces overall costs while maintaining the same high standard. Whether you need a standard size or a customized solution, our team is ready to support your project.
Contact us today for a quote or sample. Let SENOTECH help you build roofs that last.
Frequently Asked Questions (FAQ)
-
What sizes are available for the Ruspert roof screws?
We offer full sizes from #12 x 1" up to 1/4" x 8" (metric sizes M5.5 to M8 also available). Custom lengths can be produced with a minimum order quantity. -
Are these screws suitable for polycarbonate roofing?
Yes, the high hardness carbon steel tip can drill through polycarbonate and metal sheets. Use appropriate drilling speed to prevent cracking. -
Can the EPDM washer withstand extreme weather?
EPDM is designed for temperatures from -40°C to +120°C and resists UV, ozone, and rain, making it ideal for outdoor roofing. -
Is the Ruspert coating environmentally friendly?
The coating process complies with RoHS standards and does not contain hexavalent chromium or other hazardous substances. -
Do you offer custom packaging?
Yes, bulk packing in cartons, poly bags, or pallets is available. We also accept private labeling with customer logo. -
What is the typical lead time for a bulk order?
For standard sizes, lead time is 15-20 working days after payment confirmation. Custom sizes may take 25-30 days. -
How do I ensure the screw length is correct for my roof profile?
We recommend adding 5-10 mm to the total thickness of the roofing material and insulation. Our sales team can help you calculate the optimal length. -
Can I get free samples before placing a bulk order?
Yes, sample requests are welcome. Samples are provided free of charge, but freight costs are the customer's responsibility.
Send Inquiry to This Supplier
You May Also Like
-
China Manufacturer Plastic Anchors Anti-rotation for Drywall Strong Loading PE Material Full Sizes AvailableUS$ 0.01 - 0.5MOQ: 1000 Pieces
-
Plastic Anchors With Screws for Drywall Anti-rotation Strong Loading PA66 Nylon Full Sizes Available Wholesale PriceUS$ 0.01 - 0.5MOQ: 1000 Pieces
-
Plastic Anchors for Masonry With Screws Anti-rotation Strong Loading PE Material Full Sizes Available From China ManufacturerUS$ 0.01 - 0.5MOQ: 1000 Pieces
-
Plastic Anchors With Mill Test Report Anti-rotation for Brick Wall Strong Loading Full Sizes Available China ManufacturerUS$ 0.01 - 0.5MOQ: 1000 Pieces
-
Heavy Duty Plastic Anchors Ribbed Design for Concrete PA66 Nylon With Screws Free Samples Full Sizes AvailableUS$ 0.01 - 0.5MOQ: 1000 Pieces
-
Plastic Anchors for Home Decoration Easy Installation Ribbed Design PE Material Full Sizes Available Factory DirectUS$ 0.01 - 0.5MOQ: 1000 Pieces
-
Plastic Anchors for Concrete Heavy Duty PE Material Ribbed Design With Screws Free Samples Full Sizes AvailableUS$ 0.01 - 0.5MOQ: 1000 Pieces
-
Plastic Anchors 1 Year Warranty Ribbed Design for Concrete PA66 Nylon Full Sizes Available Factory DirectUS$ 0.01 - 0.5MOQ: 1000 Pieces
-
Wholesale Price Plastic Anchors for Brick Wall Ribbed Design PA66 Nylon Heavy Duty Easy Installation Full Sizes AvailableUS$ 0.01 - 0.5MOQ: 1000 Pieces
-
M6 M8 M10 Plastic Expansion Anchors for Brick Wall Ribbed Design Anti-rotation PA66 Nylon Heavy Duty Full Sizes AvailableUS$ 0.01 - 0.5MOQ: 1000 Pieces




