If you’re searching for a trustworthy lock nut manufacturer in China, you’re in the right place. I’m Monica Song, founder of Shanghai Hengrui Industry Co., Ltd and your fastener expert with over 15 years in the game. I know the challenges of sourcing quality lock nuts with real certifications, consistent supply, and strong export support.
So here’s a handpicked list of the Top 10 lock nut suppliers in China you can count on for your next OEM project, wholesale inquiry, or custom fastener need.
Summary Table: Top 10 Lock Nut Suppliers in China
| Company Name | Main Products | Certifications / Strengths |
|---|---|---|
| Shanghai Hengrui Industry Co., Ltd. | Lock nuts, Screws, Nuts, bolts | ISO 9001, RoHS, export quality |
| Ningbo OuKaiLuo Hardware Co., Ltd. | Lock nuts, bolts, screws | ISO, RoHS, SGS, BV |
| Jiaxing Qimu Trading Co., Ltd. | Lock nuts, screws, anchors | In-house plating, 20K+ tons annual output |
| HISENER Industrial Co., Ltd. | Flange nuts, nylon lock nuts, hex bolts | ISO, CE, 55+ countries exported |
| Ningbo Yi Pian Hong Fastener Co., Ltd. | High-strength lock nuts, bolts, washers | ISO, RoHS, 30K tons capacity |
| Hangzhou Lizhan Hardware Co., Ltd. | Lock nuts, bolts, machine screws | ISO 9001, industrial grade |
| Shanghai TopKun Industry Co., Ltd. | Lock nuts, high-strength bolts | ISO 9001, standard & non-standard production |
| Yangzhou XIYI Fasteners Co., Ltd. | Lock nuts, bolts, screws | DIN, ISO standards, broad application |
| Dongguan Hongrui Hardware Technology | Lock nuts, bolts | CE, RoHS, export to EU/Asia |
| Aozhan Industrial Co., Ltd. | Precision lock nuts, fasteners | Export focus, quality process control |
1. Shanghai Hengrui Industry Co., Ltd
Company Overview: We specialize in premium-grade flange nuts, nylon lock nuts, and a full range of bolts for automotive, construction, and manufacturing.
Established: 2021
Location: Shanghai
Main Products: Lock nuts, Bolts, Nuts, Washers, Screw,and custom fasteners, machined parts
With ISO 9001 and RoHS certification, we serve clients worldwide and support custom specs based on drawings or samples. Shanghai Hengrui is specializing in many kinds of fastener and metal hardware, which are used in industries of solar energy, construction and building, highway and bridge, wood & marine, oil & gas, power Transmission Tower Construction, automobile, e.t.c.
2. Ningbo OuKaiLuo Hardware Co., Ltd.
Company Overview: Founded in 1999, OuKaiLuo is one of China’s biggest names in lock nut production.
Location: Ningbo, Zhejiang
Main Products: Lock nuts, bolts, screws
They hold ISO, RoHS, SGS, and BV certifications, making them a great fit for export buyers who need traceable quality and scalable capacity.
3. Jiaxing Qimu Trading Co., Ltd.
Company Overview: Qimu offers strong production with their own plating plant and 20,000+ tons annual capacity.
Location: Jiaxing, Zhejiang
Main Products: Lock nuts, screws, anchors, washers
Their lock nuts meet DIN and ANSI standards and serve clients in construction and automotive industries globally.
4. HISENER Industrial Co., Ltd.
Company Overview: A well-known player with exports to over 55 countries.
Established: 2004
Location: Haining, Zhejiang
Main Products: Flange nuts, nylon lock nuts, hex bolts
They’re fully ISO and CE certified and offer consistent quality in large volumes. Especially strong in OEM and automotive segments.
5. Ningbo Yi Pian Hong Fastener Co., Ltd.
Company Overview: With a strong 30K tons annual output, this factory focuses on high-strength fasteners.
Established: 2001
Location: Ningbo, Zhejiang
Main Products: Lock nuts, bolts, washers
They export mainly to the automotive and construction fields. Certified with ISO and RoHS.
6. Hangzhou Lizhan Hardware Co., Ltd.
Company Overview: Lizhan focuses on industrial-grade fasteners with stable performance.
Established: 2009
Location: Hangzhou, Zhejiang
Main Products: Lock nuts, bolts, machine screws
They are ISO 9001 certified, serving domestic and overseas OEM clients.
7. Shanghai TopKun Industry Co., Ltd.
Company Overview: A professional producer of both standard and non-standard fasteners.
Established: 2006
Location: Shanghai
Main Products: Lock nuts, high-strength bolts
TopKun is well-known for strong customization ability and global export records.
8. Yangzhou XIYI Fasteners Co., Ltd.
Company Overview: With high precision equipment and a focus on customer satisfaction, XIYI offers a broad range.
Established: 2010
Location: Yangzhou, Jiangsu
Main Products: Lock nuts, bolts, screws
Their products meet DIN/ISO standards, suitable for automotive and structural applications.
9. Dongguan Hongrui Hardware Technology Co., Ltd.
Company Overview: A growing exporter of CE- and RoHS-compliant lock nuts and bolts.
Location: Dongguan, Guangdong
Main Products: Lock nuts, bolts
They focus on product durability and customer satisfaction, serving EU and Asia buyers.
10. Aozhan Industrial Co., Ltd.
Company Overview: Precision is Aozhan’s trademark. They specialize in high-end lock nuts for aviation, electronics, and automotive.
Established: 2005
Location: Hangzhou, Zhejiang
Main Products: Precision lock nuts and other fasteners
They invest heavily in process optimization and long-term quality tracking.
Frequently Asked Questions (FAQ)
Q1: What are lock nuts used for?
A: Lock nuts are designed to resist loosening under vibration or torque. Common in automotive, construction, and industrial equipment.
Q2: Can I get custom-coated lock nuts?
A: Yes. Most factories offer zinc plating, black oxide, hot-dip galvanizing, and more.
Q3: What certifications should I check for?
A: Look for ISO 9001, RoHS, and CE certifications for quality and compliance.
Q4: Do these companies support OEM?
A: Absolutely. All listed suppliers provide OEM/ODM services based on drawings or samples.
Contact Hengrui Fastener for Custom Lock Nuts
Choosing the right lock nut supplier in China depends on your needs: volume, certification, and customization. This list highlights factories that I trust and recommend based on real-world sourcing experience.
For specialized applications that require custom solutions, Hengrui Fastener offers high-quality, customizable Lock Nuts and fasteners. Whether you need a specific size, material, or finish, Hengrui can provide tailored fasteners to meet your exact requirements. Contact Hengrui Fastener to learn more about our products and services.
