Hex Washer Head Self-Drilling Roofing Screw with EPDM Rubber Washer
Product Specifications
- M4
Contact Supplier
Product Attributes
- Customization
- Available
- Material
- Carbon Steel
- Type
- All
- Model NO.
- UNC/UNF
- Connection
- Common Bolt
- Head Style
- Hexagonal
- Standard
- DIN, ANSI, GB, JIS, BSW, GOST, All
- Grade
- 12.9
- Application
- Machinery, Chemical Industry, Environmental, Building, All
- Finish
- All
- Color
- Plain/Black
- Size
- M4, M6, M8
- Length
- 40mm, 60mm, 120mm
- MOQ
- 100/1000/10000
- Delivery
- 15-20 Days
- Brand
- Yph
- Transport Package
- Customized/Standard
- Specification
- M4, M6, M8
- Trademark
- YPH/OEM
- Origin
- China
- Production Capacity
- 300000 Tons
Product Images of Hex Washer Head Self-Drilling Roofing Screw with EPDM Rubber Washer
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Hex Washer Head Self-Drilling Roofing Screw with EPDM Rubber Washer -
Hex Washer Head Self-Drilling Roofing Screw with EPDM Rubber Washer -
Hex Washer Head Self-Drilling Roofing Screw with EPDM Rubber Washer -
Hex Washer Head Self-Drilling Roofing Screw with EPDM Rubber Washer -
Hex Washer Head Self-Drilling Roofing Screw with EPDM Rubber Washer -
Hex Washer Head Self-Drilling Roofing Screw with EPDM Rubber Washer -
Hex Washer Head Self-Drilling Roofing Screw with EPDM Rubber Washer
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Product Description
1. Hex Flange Head for Easy Installation
The screw features a robust hex flange head, designed for compatibility with standard socket or impact drivers. This design offers multiple benefits:
Efficient Torque Transfer: The six-sided hex head provides a secure grip for tools, preventing slippage during high-torque installation.
Load Distribution: The integrated flange spreads clamping force evenly across the surface of the metal sheet, reducing the risk of denting, warping, or damage to the roofing material.
Color-Matched Options: Many models are available with a painted head in standard roof colors (black, brown, gray, red, etc.), allowing the screws to blend seamlessly with the roof surface for a clean, aesthetically pleasing finish.
2. Integrated EPDM Rubber Washer (Critical for Waterproofing)
The defining feature of these roofing screws is the pre-assembled EPDM rubber washer, vulcanized to a metal backup washer:
Watertight Seal: When the screw is tightened, the EPDM washer compresses to form a durable, weatherproof seal around the screw hole. This prevents water, rain, and moisture from seeping into the roof structure, eliminating the risk of leaks, rot, and structural damage.
Superior Weather Resistance: EPDM (Ethylene Propylene Diene Monomer) rubber is renowned for its excellent resistance to ozone, UV rays, extreme temperatures, and chemical exposure. It remains flexible and elastic over decades, even in direct sunlight and harsh weather conditions, ensuring a long-lasting seal.
Corrosion Protection: The metal backup washer provides support and prevents the rubber from being crushed or damaged during installation, while also protecting the rubber from direct contact with the metal roofing material, preventing galvanic corrosion.
d | b | k | s |
M4 | 20 | 4 | 3.08 |
M5 | 22 | 5 | 4.095 |
M6 | 24 | 6 | 5.14 |
About the Supplier
This supplier has been audited by TÜV Rheinland. Verify the report on the official TÜV Rheinland website with ID "MIC-ASR2331109". Items marked "
" are certified.
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Company Profile
Ningbo yi pian hong fastener Co., Ltd, was established in the year 2001 and stands in a beautiful and rich coastal city: Ningbo. Ningbo is located on the south of the Yangtze River Delta, with the great Beilun Harbor in the east and Hangzhou Bay in the north; While it is near to Lishe Airport and Xiaoshan International Airport, Hangzhou-Ningbo Expressway passes by it: It enjoys convenient transportation.
Ningbo yi pian hong fastener Co., Ltd is a professional fastener manufacturer and exporter of China fastener, also is one member of China Fastener Association. We are proficiently engaged in manufacturing various kinds of high strength bolts, nuts and thread rods with a yearly capacity of 30, 000 tons and an annual turnover of 300 million Yuan. Our products include standards of ANSI/ASTM, DIN, BS, ISO, GB, JS, etc, which are mainly applied to the fields of high strength tight firmware and petroleum pipes' valve. Our products are mostly exported to Europe, North America, the Middle East and Southeast Asian countries and regions. We receive great acclaim from our clients at home and abroad because of the fine quality of our products and our good credit.
Ningbo yi pian hong fastener Co., Ltd covers an area of 20, 000 sq. M, with building area of 10, 000 sq. M. We boast more than 200 staff and workers, including 35 manageri staff and 2 senior engineers with the National Grade III Certificate of Physical Test and Chemical Analysis, who are responsible for monitoring the quality of the products we produced and improving the process of heat treatment. The company is fully equipped with over 260 production equipments and 30 examination devices. To perfect the quality of our products, we imported a vortex durometer from Germany to carry out 100% hardness test of our products. While we apply a large scale vortex flaw detector to detect the crack flaw in stud bolts, we use an imported direct-read spectrograph to verify chemical composition of raw materials.
We have received ISO9001: 2000 and been granted CE Certificate by the Lloyd's Register for our products EN 14399 3-6 and EN 15048-1.
The company persistently carries forward enterprose spirit of "Sincerity, Unity, Forging ahead", cultivates enterprise culture of "Staff incorporate into the company", "Suvive on Quality, Develop on Reputation". Only unwavering commitment to sincerity can enable the company to relize steady development and win a share in the fiercely competitive market.
About Our Factory & Business Background
- Address
- Xi Jing Tang Industrial Zone, Jiu Long Hu Town, Zhenhai District, Ningbo, Zhejiang, China
Our Production Capability & Technical Expertise
- Main Products
- Fastener, Bolt, Nut, Washer, Thread Bar, Special Bolt, Carbon steel Screw, Stainless steel Bolt
Our Industry Experience & Global Business Record
- Export Year
- 2016-04-19
- Main Markets
- Western Europe
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