Ningbo Zhenhai Yufeng Machinery Co., Ltd
Precision Fasteners & CNC Parts Manufacturer
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Precision Fasteners & CNC Parts Manufacturer
High-strength bolts, heavy hex nuts, threaded rods, and structural fasteners manufactured to ASTM A193/A194, A325/A490 standards. Trusted by global partners for reliability, precision, and durability.
Industry Experience
A193, A194, A325, A490
Exported to 30+ Countries
Ningbo Zhenhai Yufeng Machinery Co., Ltd is a leading producer and distributor of hardware accessories, specializing in high-precision fasteners and CNC turning parts. With a strong focus on quality and innovation, we serve industries ranging from construction and energy to automotive and aerospace.
Our product range includes bolts, nuts, high-strength fasteners, heavy hex nuts, threaded rods, structural bolts, screws, fittings, and valves. All products are manufactured from premium materials such as carbon steel, stainless steel, aluminum, copper, and engineering plastics, tailored to meet specific client requirements.
High-performance fasteners engineered for strength, durability, and precision. All products are manufactured under strict quality control and meet international standards.
High-tensile hex head bolts in carbon and stainless steel. Available in M6–M100 sizes.
Precision hexagonal nuts for industrial and structural applications.
Fully threaded rods in various lengths and diameters.
High-strength bolts for steel construction and bridge applications.
Quenched and tempered alloy steel bolts for critical load applications.
Extra-thick nuts for high-vibration and heavy-duty environments.
High-strength alloy steel threaded rods for pressure vessels and refineries.
Integrated washer design for even load distribution and vibration resistance.
Complete assembly sets for steel frame construction and infrastructure.
Smooth domed head with square neck to prevent rotation during installation.
Precision-machined components for automotive, medical, and industrial use.
Stainless steel and brass fittings for fluid control systems.
We combine advanced manufacturing, rigorous quality control, and customer-focused service to deliver reliable fastening solutions worldwide.
Every product undergoes strict inspection including tensile testing, hardness checks, and dimensional verification to ensure compliance with ASTM, ISO, and DIN standards.
Efficient logistics and inventory management ensure on-time delivery. We support LCL, FCL, air freight, and express shipping to meet urgent project timelines.
Dedicated sales engineers provide technical support, fast quoting, and after-sales service. Available via WhatsApp, WeChat, email, and phone.
From prototype to mass production, we offer OEM/ODM services with full CNC machining, threading, heat treatment, and surface finishing capabilities.
All products are packed in moisture-proof bags, inner boxes, and export-standard wooden pallets to ensure safe long-distance transportation.
Products meet ASTM A193/A194, A325/A490, ISO 898, and DIN standards. Mill test certificates and material traceability provided upon request.
We manufacture fasteners from carbon steel, alloy steel (e.g., 4140/B7), stainless steel (SS304, SS316), aluminum, brass, and copper. Custom materials available upon request.
Yes, our high-strength bolts comply with ASTM A193/A194 (for high-temp service) and ASTM A325/A490 (for structural applications). Mill test reports are available.
Absolutely. Our CNC machining and cold forging capabilities allow us to produce custom bolts, nuts, rods, and fittings to your exact specifications and drawings.
MOQ varies by product. For standard items, it can be as low as 1,000 pcs. We also accept sample and prototype orders for new designs.
We follow a strict QC process including raw material inspection, in-process checks, final inspection, and mechanical testing (tensile, hardness, torque). All batches are traceable.
Standard products: 15–20 days. Custom orders: 25–35 days depending on complexity. Express shipping options available.
Have a project or need a quote? Contact our sales team for fast, professional support.
+86 17388123955
minardmu@gmail.com
Tiangu Industrial Zone, Jiulonghu Town, Zhenhai, Ningbo City, Zhejiang 315000, China
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