Nanpi Haokai Hardware Products Co., Ltd., strategically located near Bohai Bay and adjacent to the Beijing-Shanghai Expressway, has established itself as a leading private enterprise specializing in the design and production of custom metal hardware solutions. With over two decades of continuous innovation and development, our company has achieved remarkable success in the metal manufacturing industry, serving clients worldwide with our high-quality products and professional services.

Advanced Manufacturing Capabilities
Our company boasts state-of-the-art production facilities and a highly skilled technical team. With over 70 employees, including 16 technical professionals and 7 senior technicians, we operate more than 30 sets of stamping equipment ranging from 30 to 250 tons, along with 30 CNC machines, automatic lathes, and injection molding machines. This comprehensive equipment array enables us to handle projects of varying scales and complexities with precision and efficiency.
The integration of advanced manufacturing technologies allows us to maintain strict quality control throughout the production process. From initial design to final inspection, our ISO 9001:2015 certified quality management system ensures every component meets international standards and customer specifications. This commitment to quality has earned us recognition from numerous domestic and international enterprises across multiple industries.
Core Product Lines
Our product portfolio focuses on three primary categories: precision stamping parts, CNC machined components, and injection molded parts. Each product line offers distinct advantages tailored to specific industrial applications:
Precision Stamping Parts
Our metal shovels represent the pinnacle of stamping technology. Manufactured from single pieces of material through integrated stretching and bending processes, these shovels feature no welds or joints, ensuring exceptional durability and resistance to bending or cracking. The reinforced structure, smooth curved surface, and standard mounting holes enable easy assembly without secondary processing, significantly reducing production costs for our clients.
We offer customization options across various materials including cold-rolled steel, stainless steel, aluminum alloy, and copper, accommodating different working environments and equipment requirements. These shovels find applications in construction machinery, agricultural equipment, and industrial tooling systems.

CNC Machined Components
Our brass connector rods exemplify our precision machining capabilities. Manufactured through integrated CNC processes, these components feature precise dimensions, smooth surfaces without burrs, and excellent electrical conductivity. The use of high-quality brass ensures superior oxidation resistance and durability, while alternative materials like phosphor copper, red copper, aluminum, and iron provide flexibility for different applications.
Customization options extend beyond material selection to include dimensions, structures, shapes, and surface treatments such as tin plating, zinc plating, and polishing. These versatile components serve as critical electrical connectors in automotive parts, new energy equipment, medical instruments, and electronic terminals.
Precision Injection Molded Parts
Our precision knurled zinc-plated sleeves demonstrate our expertise in non-standard custom hardware production. Manufactured through CNC integrated turning, these sleeves feature smooth inner walls, precise dimensions, and a knurled middle section that significantly enhances assembly friction to prevent slippage during operation. The zinc plating provides excellent corrosion resistance, extending product lifespan across various environments.
Material options include iron, stainless steel, brass, and aluminum, with customizable dimensions for diameter, length, and wall thickness. These components find widespread use in fasteners, wire harness connectors, instrument bushings, furniture hardware, and mechanical positioning systems.
| Product Feature | Technical Specification |
|---|---|
| Material Options | Cold-rolled steel, stainless steel, aluminum alloy, copper, brass, phosphor copper, red copper |
| Tolerances | ±0.01mm for CNC machined parts, ±0.05mm for stamping parts |
| Surface Treatments | Zinc plating, nickel plating, tin plating, polishing, anodizing, powder coating |
| Production Capacity | 10,000-500,000 pieces per month depending on product complexity |
Custom Solution Development
Beyond our standard product offerings, we specialize in developing customized hardware solutions tailored to specific client requirements. Our comprehensive service covers every stage from initial design consultation to final production and after-sales support:
- Design Optimization: Our engineering team collaborates with clients to refine product designs for manufacturability and cost efficiency
- Prototyping: Rapid production of samples for functional testing and design validation
- Mass Production: Scalable manufacturing processes to meet varying order volumes while maintaining consistent quality
- Quality Control: Multi-stage inspection procedures including incoming material checks, in-process monitoring, and final product testing
- Logistics Support: Flexible shipping arrangements and documentation to ensure timely delivery worldwide
This end-to-end service model enables us to support clients throughout their product development lifecycle, from concept to commercialization. Our ability to handle both small-batch prototypes and large-scale production runs makes us an ideal partner for companies seeking agile manufacturing solutions.

Industry Applications
Our hardware solutions serve diverse industries with specific performance requirements:
- Automotive: Custom connectors, brackets, and fasteners designed to withstand vibration and temperature extremes
- Medical: Precision components meeting strict biocompatibility and sterilization requirements
- Electronics: Miniature connectors and shielding components with precise electrical properties
- Energy: Durable components for renewable energy systems and power distribution equipment
- Construction: Heavy-duty hardware for machinery and structural applications
For each industry, we develop material specifications and manufacturing processes that address the unique challenges of the operating environment. This industry-specific approach ensures our components deliver optimal performance in their intended applications.
FAQ
What materials are available for custom metal stamping parts?
We offer a wide range of materials including cold-rolled steel, stainless steel (304/316), aluminum alloy (6061/7075), copper, and brass. Material selection depends on the specific application requirements for strength, corrosion resistance, electrical conductivity, and weight considerations.
How do you ensure dimensional accuracy in CNC machined components?
Our CNC machines are equipped with high-precision servo systems and are regularly calibrated to maintain tolerance levels of ±0.01mm. Each component undergoes in-process inspection using coordinate measuring machines (CMM) and final dimensional verification before shipping.
What is your minimum order quantity for custom parts?
We accommodate both prototype and production quantities. For custom stamping parts, the MOQ typically starts at 1,000 pieces, while CNC machined components can be produced in quantities as low as 100 pieces depending on complexity. We also offer sample production services for design validation.
How long does it take to produce custom hardware components?
Lead times vary based on product complexity and order volume. Simple stamping parts typically require 15-20 days for tooling and production, while CNC machined components may take 10-15 days. For urgent orders, we offer expedited services with priority scheduling in our production plan.
What quality certifications do your products have?
All our manufacturing processes comply with ISO 9001:2015 quality management standards. Specific products can be certified to meet additional industry requirements such as RoHS for environmental compliance, REACH for chemical safety, and IATF 16949 for automotive applications upon request.
Summary
Nanpi Haokai Hardware Products Co., Ltd. stands as a trusted partner for companies seeking high-quality custom metal hardware solutions. With two decades of manufacturing expertise, advanced equipment, and a skilled technical team, we deliver precision components that meet the most demanding specifications across multiple industries. Our commitment to quality, flexibility in customization, and comprehensive service approach make us an ideal choice for both prototype development and volume production requirements. Whether you need standard hardware components or fully customized solutions, we have the capabilities to support your project from concept to delivery with professionalism and reliability.