At Zhejiang Zhongrui Auto Parts Co., Ltd., every fastener represents a promise of reliability, precision, and unwavering quality. Since our founding in 1986 in Jiaxing, China, our team has been dedicated to manufacturing the critical components that ensure vehicle integrity and performance. We are more than just a manufacturer; we are your partners in building vehicles you can trust, with a specialized focus on high strength automotive fasteners.
Our commitment to excellence is tangible within our 20,000 square meter plant, operating under the stringent guidelines of the IATF16949 certification. This isn't just a standard we adhere to; it's our operational philosophy, driving meticulous attention to detail from the moment raw materials enter our facility through the final automated inspection. This rigorous approach is how we consistently deliver quality automotive fasteners engineered to perform reliably in the most demanding conditions the road can offer.
We understand that the strength of a vehicle lies in the integrity of its connections. That's why our expertise in high strength fasteners is paramount. Our extensive product portfolio serves the diverse needs of the automotive industry, from the robust chassis to intricate engine assemblies.
Think about the fasteners that bear immense loads and withstand constant vibration. Our range includes dependable Automotive Bolts like Hex Head Bolts (compliant with standards such as ANSI/ASME B18.2.1, DIN 933, GB/T 5783) and versatile Hex Flange Bolts (DIN 6921, ISO 15072, GB/T 16674.2). These are the workhorses in areas like engine mounts, transmission connections, and frame assemblies. For more specific applications, we offer specialized bolts like Cup Head Square Neck Bolts (DIN 603) often chosen for their smooth finish and anti-rotation feature in seating or body panels, and crucial Passenger Car Wheel Bolts (ISO 7412, DIN 74361) ensuring your wheels stay securely attached.
Keeping those bolts tight are our Automotive Nuts. We manufacture standard Hex Nuts (DIN 934, ISO 4032) as well as sophisticated Lock Nuts designed to resist loosening under dynamic loads. Our Prevailing Torque Type Nuts, including Thin (DIN 985) and Thick (DIN 982) variants with non-metallic inserts, provide reliable anti-vibration performance. For all-metal locking solutions, our All-Metal Lock Nuts (ANSI/ASME B18.16.6, DIN 980M) offer robust security without inserts. We also provide Hexagon Flange Nuts (EN 1661) that integrate the function of a washer, simplifying assembly.
Proper load distribution and surface protection are vital, handled by our range of Automotive Washers. From standard Flat Washers (DIN 125, ISO 7089, GB/T 96) to those designed for shock absorption and axial load management like Spring Washers (DIN 127, GB/T 93) and high-strength Conical Spring Washers (DIN 6796). We also offer large format washers (DIN 9021) for distributing load over wider areas and specialized types like Square Bevel Washers (ASTM F436).
Precision alignment and secure pivoting are often achieved with Automotive Pins. Our offerings include highly accurate Parallel Pins (DIN EN ISO 8734, ISO 8735) used for precise component location, Clevis Pins with Head (DIN 1444, ISO 2341) essential for linkages in steering and suspension systems, and simple yet effective Split Pins (DIN 94, ISO 1234) providing a reliable mechanical lock for added safety.
Beyond these core types, we provide specialized Fasteners like robust U-Bolts (GB4231) for securing pipes and springs, heavy-duty Anchor Bolts (like the unique 7-shaped type) for anchoring machinery and structures, Double End Studs (GB899B, DIN939) for mounting components with threads on both ends, and precision Tooth Rods (ANSI/ASME B18.31.2) for specialized mechanical connections.
Keeping components axially in place is the job of Retaining Rings. Our range includes External Circlips (DIN 471, DIN 983) for shafts and Internal Retaining Rings for Bores (DIN 472, DIN 1308) for housings, ensuring assemblies remain intact even under dynamic forces.
We understand that common quality concerns like fracture, thread stripping, or material mixing can impact your production and reputation. Our dedicated quality problem-solving process is built on a foundation of transparency and collaboration – from identifying the root cause to implementing validated solutions hand-in-hand with our customers. This is how we ensure the reliability you expect from an IATF16949 certified manufacturer.
Our commitment to being your reliable China manufacturer extends globally. We proudly serve the major automotive markets in Europe (Germany, UK), North America (USA), and Asia (Japan), partnering with numerous renowned enterprises. We offer OE Service, develop custom fasteners based on your unique drawings, provide private branding options, and support your reach with our own export brand, RUIQI-Zhejiang Zhongrui Auto Parts.
The upcoming Ningbo International Auto Parts & Aftermarket Expo 2025 (CAPAFAIR Ningbo 2025) presents an ideal opportunity to connect with our team directly. As a key hub for global sourcing in the auto parts industry, this event brings together over 2,000 leading suppliers across 51,650 square meters, attracting thousands of Global Automotive Trade Professionals from around the world (including over 6,240 international buyers at the last edition).
Meet us at Booth H5-234 from August 13th to 15th, 2025, at the Ningbo International Conference & Exhibition Center. It's a chance to discuss your specific needs, explore our extensive range of high strength automotive fasteners, and discover the difference that dedicated quality and a trusted partnership can make to your supply chain.
Choosing the right partner for your fastening needs is a crucial decision. Let us show you the confidence that comes with sourcing reliability directly from the source. We look forward to welcoming you and exploring how we can help you build vehicles that stand the test of time and the road.
Coco Chen, Director of Business Development: coco.chen@zjzrap.com
Freddie Xiao, Account Manager: freddie.xiao@zjzrap.com
Brian Xu, Technical Sales Assistant: brian.xu@zjzrap.com
CAPAFAIR Ningbo 2025 Data Points for Buyers:
CAPAFAIR Ningbo 2025 is China's premier export-oriented auto parts and aftermarket trade show, leveraging the region's significant automotive industry cluster.
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Event Dates: August 13-15, 2025
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Venue: Ningbo International Conference & Exhibition Centre (Hall 1-8)
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Exhibition Scale: 51,650 m² with 2,400 booths
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Exhibitors: Over 2,000 leading automotive parts suppliers
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Target Audience: Specifically focused on Global Automotive Trade Professionals (Importers, Exporters, OEMs, Tier 1/2, Aftermarket).
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Previous Edition (Sept 2024): Attracted 1,950 quality exhibitors and 24,759 visitors, including 6,240 professional foreign trade buyers.
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Exhibit Scope: Covers key areas including Automotive Parts & Components, Electrics & Electronics (relevant for EV fasteners), Repair & Maintenance, and more.
Partnerships & Capabilities:
We provide supporting services for numerous renowned enterprises in the automotive, commercial vehicle, and heavy equipment sectors, including major manufacturers. (List of example clients provided in source data can be referenced or partially included). We offer private brand packaging. Our own export brand, RUIQI-Zhejiang Zhongrui Auto Parts, serves markets in Europe, the Middle East, Africa, and South America.
Working with Zhejiang Zhongrui Auto Parts:
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MOQ: 1 ton per order / 1 ton per SKU.
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Payment Terms: Advanced payment + Balance payment before shipment.
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Lead Time: Typically One Month.
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Loading Ports: Zhejiang, Ningbo, Shanghai, etc.
Don't miss this crucial opportunity to source high-quality automotive fasteners and build a reliable partnership directly with an IATF16949 certified manufacturer in China. Plan your visit to Booth H5-234 at CAPAFAIR Ningbo 2025 today.
Meet a few members of our dedicated team, ready to help you:
Coco Chen, Director of Business Development: coco.chen@zjzrap.com
Freddie Xiao, Account Manager: freddie.xiao@zjzrap.com
Brian Xu, Technical Sales Assistant: brian.xu@zjzrap.com
Explore our capabilities and comprehensive product range: https://www.zjzrqc.com/product
IATF16949 Certified
HQ& Factory Address:
No. 680, Ya'ao Road, Daqiao Town, Nanhu District, Jiaxing City, Zhejiang Province, China
Online Map to see where we are exactly located:
Linkedin Page • Products • Video Showcase • Contact Us • CAPAFAIR Ningbo 2025
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