Hebei Kappa Metal Products Co., Ltd. is one of the most reliable manufacturers and suppliers of hex flange head self drilling screws with pvc washer in China. Welcome to buy bulk high quality hex flange head self drilling screws with pvc washer made in China here from our factory. If you have any enquiry about cooperation, please feel free to email us.
Hex Flange Head Self Drilling Screw with PVC Washer is designed for fast and secure fastening of metal sheets, roofing panels and construction materials. The integrated PVC washer provides additional sealing performance and helps reduce water penetration during outdoor applications.
Manufactured from high quality carbon steel, these self drilling screws feature a hex flange head design for stable installation and efficient torque transmission. Kappa Fasteners supplies customized sizes, finishes and packaging solutions for global customers.
Key Features & Benefits
|
Feature |
Benefit |
|
Self-drilling point |
Eliminates pre-drilling, speeds up installation |
|
Hex flange head |
Provides high torque transmission and broad bearing surface |
|
PVC washer |
Creates weather-resistant seal, prevents corrosion at the clamping interface |
|
Wide size range |
Diameters 4.2–6.3mm, lengths 16–200mm suit diverse applications |
|
High-strength carbon steel with zinc |
Ensures reliable holding power and durability |
Application Scenarios
These screws are widely used in:
Metal roofing and cladding – fastening steel sheets to steel or wood substructures
Steel structure construction – connecting light gauge steel framing
HVAC ductwork – securing components with weatherproof sealing
General industrial assembly – where speed and sealing are critical
The combination of self-drilling capability, flange head design, and PVC washer makes this screw particularly suitable for outdoor and moisture-prone environments, ensuring long-term joint integrity.
Factory Strength & Global Clients
Our manufacturing facility spans 12,000 square meters and operates 8 high-speed cold heading production lines, 6 automatic thread rolling machines, and 4 advanced heat treatment lines, supported by a dedicated in-house laboratory for material and coating testing. With an annual output exceeding 8,000 tons, we maintain consistent inventory and short lead times.
We proudly serve clients across Europe, North America, Southeast Asia, and the Middle East. Our customers include:
A top 5 hardware distributor in Germany, supplying over 500 SKUs under private label
A leading furniture manufacturer in Vietnam, with monthly orders exceeding 100 tons
Multiple automotive component suppliers in Japan and South Korea, sourcing custom specifications
Customization & Service
We support custom sizes, surface finishes, and packaging options to meet specific customer requirements. Whether for wholesale bulk packaging or retail-ready small packs, we tailor our solutions to your distribution needs.
FAQ
