Ningyuan Fastener
Explore our premium range of industrial-grade fastening elements and assembly solutions.








Handan Ningyuan Fastener Manufacturing Co., Ltd. (formerly Jin Langtao), founded in 2005, is located in Handan Yongnian—recognized worldwide as the historical hometown of Taiji and the undisputed fastener capital of China. Since our inception, we have steadfastly adhered to the enterprise philosophy that development is the direction and hard work is the truth.
Starting from specialized production of high-end fasteners and photovoltaic accessories, over 18 years of continuous technological innovation and structural optimization have transformed us into a premier modern manufacturing enterprise. Our comprehensive service ecosystem covers high-end fastener standard parts, photovoltaic new energy mounting systems, building electromechanical seismic systems, integrated pipe gallery support systems, steel structure building bolts, and specialized drill tail wire series.
Hard metrics reflecting our commitment to industrial reliability and supply chain strength.
Addressing global procurement intent through metallurgical precision, superior countersinking mechanics, and rigorous quality assurance.
Flat head screws—frequently referred to as countersunk screws—are quintessential mechanical fastening components engineered to sit flush with or below the surface of the work piece. Achieving this flush finish requires meticulous head angle geometry (typically standardized at 82 or 90 degrees) and precise torque distribution. At Handan Ningyuan, our manufacturing protocols integrate advanced cold-heading technology with automated thread-rolling to ensure optimal tensile strength, shear resistance, and thread uniformity.
Material selection dictates performance across demanding industrial environments. We utilize high-grade carbon steel, alloy steel, and austenitic/martensitic stainless steels (such as SS304 and SS316), supplemented by specialized surface treatments including hot-dip galvanizing, mechanical zinc plating, and black oxide finishes. These treatments guarantee exceptional corrosion resistance, preventing galvanic reactions in harsh outdoor, marine, and photovoltaic infrastructures.
Sourcing fasteners from the Yongnian industrial cluster in Handan provides international B2B buyers with unmatched economic and logistical efficiencies. As a tier-one manufacturing source, Ningyuan eliminates intermediary markups, offering direct factory pricing backed by economies of scale. Our facility houses over 50 state-of-the-art production units capable of delivering an annual output exceeding 60 million precision-engineered pieces.
Global enterprises dealing in large-scale construction, automotive manufacturing, and renewable energy installations demand consistency, traceability, and punctual fulfillment. Our integrated organizational framework—combining an R&D division, dedicated production center, and agile global sales team—enables rapid prototyping, flexible custom tooling, and streamlined shipping schedules tailored to international supply chain requirements.
Navigating international regulatory frameworks is critical for global deployment. Ningyuan fasteners comply strictly with major international and regional standards, including ISO 9001 quality management systems, RoHS EU testing protocols, GB/T30512 automotive banned substances compliance, and 2000/53/EC ELV directives. Our municipal-level fastener research center holds over 25 proprietary patents, empowering us to offer localized technical support, custom compliance documentation, and comprehensive installation engineering guidance for overseas projects.
Flat head screws and our broader fastener portfolio serve vital structural roles across multiple industry verticals:
Engineered for maximum durability across photovoltaic, structural, and mechanical applications.




Expert insights regarding fastener procurement, customization, and technical specifications.
We manufacture flat head screws adhering to international standards with standard countersink angles of 82° and 90°. Custom angle tooling is also available upon request for specialized aerospace or heavy machinery applications.
Yes, we offer free samples of our regular production lines. Global clients only need to cover courier shipping costs to receive evaluation samples prior to placing bulk orders.
We offer multiple surface finishes including hot-dip galvanizing (HDG), mechanical zinc plating, yellow zinc, black oxide, and passivation for stainless steel items to ensure longevity in corrosive environments.
Our quality assurance framework is backed by ISO 9001 certification and weapons-grade system standards. Every batch undergoes rigorous tensile strength testing, dimensional optical sorting, and RoHS chemical compliance checks.
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