In the demanding world of heavy-duty vehicles – from commercial trucks and buses to agricultural machinery and construction equipment – the safety and reliability of the wheel assembly are paramount. At the heart of this critical connection are heavy-duty wheel hub bolts. These fasteners are subject...

In the demanding world of automotive engineering, where performance meets punishing real-world conditions, the reliability of every single component is paramount. Among the unsung heroes of vehicle assembly are fasteners, and the Automotive Hex Socket Cap Screw (also commonly known as a Socket Head ...

In automotive engineering, ensuring that fasteners stay reliably in place under stress is a non-negotiable requirement—especially in high-vibration environments such as engine bays, suspension systems, and drivetrain assemblies. One of the most common and dependable fasteners used across these appli...

Contact us to find out more about our capabilities and how we can meet your specific fastener needs. Meet a few members of our dedicated team, ready to help you:Coco Chen, Director of Business Development: coco.chen@zjzrap.comFreddie Xiao, Account Manager: freddie.xiao@zjzrap.comBrian Xu, Technica...

Frequently Asked Questions (FAQs) | Zhejiang Zhongrui Auto Parts Based on our 38 years of experience as an IATF16949 certified automotive fastener manufacturer, here are answers to common questions from clients like OEMs, Tier 1s, Tier 2s, and Distributors. I.Common Questions Before Procurement Q1: ...

We also invite you to: Visit Our Booth at CAPAFAIR Ningbo 2025:  Meet us in person at Booth H5-234, August 13-15, 2025, Ningbo International Exhibition Center.  https://www.zjzrqc.com/news/high-strength-automotive-fasteners-meet-manufacturer-zhejiang-zhongrui-directly-at-capafair-ningbo-2025.html...

We also invite you to: Visit Our Booth at CAPAFAIR Ningbo 2025:  Meet us in person at Booth H5-234, August 13-15, 2025, Ningbo International Exhibition Center.  https://www.zjzrqc.com/news/high-strength-automotive-fasteners-meet-manufacturer-zhejiang-zhongrui-directly-at-capafair-ningbo-2025.htm...

Flanged hexagon bolts are critical fasteners widely used across numerous industries, providing a larger bearing surface under the head compared to standard hexagon bolts, thus eliminating the need for a separate washer in many applications. Two common standards governing these fasteners are the Germ...

Automotive spring washers are critical components in high-vibration assemblies, helping to maintain consistent clamping force under dynamic conditions. But like any mechanical part exposed to stress and movement, they face the persistent challenge of fatigue. Fatigue failure doesn't happen overnight...

In the automotive industry, where every component must perform under demanding conditions, the surface treatment of automotive screw washers is more than just a finishing touch—it plays a vital role in determining the part’s longevity, corrosion resistance, and overall performance. Manufacturers and...

When it comes to automotive applications, the smallest components can have the biggest impact on safety and performance. One of the most critical factors for fasteners, especially bolts, is their strength grade or class. Making the wrong choice here can lead to premature failure, compromise structu...

At Zhejiang Zhongrui Auto Parts, a leading  automotive fastener manufacturer  specializing in  custom solutions , we understand that the demands of EV construction often require fasteners that go beyond standard specifications. Why Standard Fasteners Don't Always Cut It for EVs The u...