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GR-2016
GORUN
Hex Head Washer Yellow Zinc Plated Roofing Self Drilling M5*120 China Screw
Our premium outdoor hex flange screw features carbon steel core with yellow zinc plating for corrosion resistance. Sized M5*120mm, it’s designed for roof installations.
The central smooth shaft facilitates easy penetration, while the sharp self-drilling tip expedites installation,
boosting efficiency. Equipped with transparent PVC washer, it ensures waterproof sealing. Combining durability, efficiency, and weather protection, this screw is ideal for roofing applications.
Why Choose Our Factory?
✅ Direct Manufacturer, No Middleman
We are a certified direct factory, not a trading company. This means faster production, better pricing, and direct communication.
✅ ISO 9001 Certified
Our factory meets international quality standards. Every step—from material sourcing to shipping—is strictly controlled.
✅ CE & RoHS Compliant
All our screws are CE & RoHS certified, ensuring they meet EU environmental and safety requirements.
✅ SGS-Audited Supplier
An independent agency (SGS) has verified our factory’s credibility. You can trust our production capacity and ethical practices.
Your Benefits with GORUN SCREW
✔ Flexibility: Customize any detail, even small orders.
✔ Reliability: Proven quality systems and certifications.
✔ Transparency: Full traceability from factory to shipment.
Secure Transactions
To enhance safety, we operate on MAKE IN CHINA 
(Link: https://screw-manufacturer.en.made-in-china.com/
Ready to Start?
Contact us now for a quote or sample. No matter where you're from!
Hex Head Washer Yellow Zinc Plated Roofing Self Drilling M5*120 China Screw
Our premium outdoor hex flange screw features carbon steel core with yellow zinc plating for corrosion resistance. Sized M5*120mm, it’s designed for roof installations.
The central smooth shaft facilitates easy penetration, while the sharp self-drilling tip expedites installation,
boosting efficiency. Equipped with transparent PVC washer, it ensures waterproof sealing. Combining durability, efficiency, and weather protection, this screw is ideal for roofing applications.
Why Choose Our Factory?
✅ Direct Manufacturer, No Middleman
We are a certified direct factory, not a trading company. This means faster production, better pricing, and direct communication.
✅ ISO 9001 Certified
Our factory meets international quality standards. Every step—from material sourcing to shipping—is strictly controlled.
✅ CE & RoHS Compliant
All our screws are CE & RoHS certified, ensuring they meet EU environmental and safety requirements.
✅ SGS-Audited Supplier
An independent agency (SGS) has verified our factory’s credibility. You can trust our production capacity and ethical practices.
Your Benefits with GORUN SCREW
✔ Flexibility: Customize any detail, even small orders.
✔ Reliability: Proven quality systems and certifications.
✔ Transparency: Full traceability from factory to shipment.
Secure Transactions
To enhance safety, we operate on MAKE IN CHINA
(Link: https://screw-manufacturer.en.made-in-china.com/
Ready to Start?
Contact us now for a quote or sample. No matter where you're from!
