In today’s competitive industrial landscape, finding a reliable manufacturer for high-quality connection contact parts is crucial for maintaining operational efficiency and product reliability. Nanpi Haokai Hardware Products Co., Ltd., with over two decades of expertise in metal fabrication, stands as a premier supplier of custom connection components for global industrial applications. This comprehensive guide explores our capabilities, product range, and why we’re the preferred choice for businesses seeking precision connection solutions.

Company Overview: Two Decades of Manufacturing Excellence
Strategically located near Beijing-Shanghai Expressway with convenient access to Tianjin Port, Nanpi Haokai Hardware has established itself as a leading private enterprise specializing in metal product design and production. Since our founding, we’ve remained committed to technological innovation and quality excellence, earning ISO9001:2015 certification and building strong partnerships with major domestic and international corporations.
Our 70-strong workforce includes 16 technical professionals and 7 senior technicians operating 30+ stamping machines (30-250 ton capacity) and 30+ CNC processing equipment including automatic lathes and injection molding machines. This comprehensive setup enables us to handle every aspect of production from design to after-sales service under one roof.
Core Product Range: Precision Connection Solutions
As specialists in connection contact parts manufacturing, we offer three main product categories designed to meet diverse industrial requirements:
1. Precision Stamped Connection Components
Our stamping capabilities produce components with exceptional dimensional accuracy and surface finish. The metal shovel – our flagship stamped product – demonstrates our manufacturing prowess:
- One-piece stretch bending from solid plate (no welding or joints)
- Reinforced structure with smooth curved surface and standard mounting holes
- Material options: Cold rolled steel, stainless steel, aluminum alloy, copper
- Applications: Industrial equipment, workstation fittings, material handling systems
The brass stretching copper shell represents our precision stamping capabilities for electrical connectors:
- Seamless one-piece construction with compact design
- Stable conductivity and excellent corrosion resistance
- Customizable dimensions and premium surface treatments (gold, silver, nickel plating)
- Main applications: Aviation connectors, new energy equipment, sensor assemblies

2. CNC Machined Connection Parts
Our CNC processing delivers components with micron-level precision and superior mechanical properties. The brass connecting rod exemplifies our CNC capabilities:
- One-piece molded construction with precise dimensions
- Smooth surface finish (<0.8μm Ra) with no burrs
- Material options: Brass, phosphor copper, aluminum, iron
- Customizable features: Dimensions, structure, surface treatments (tin, zinc plating, polishing)
- Typical applications: Connectors, automotive parts, new energy equipment, medical instruments
3. Non-Standard Custom Connection Solutions
We specialize in developing bespoke connection components tailored to specific requirements. The precision knurled galvanized sleeve demonstrates our non-standard manufacturing capabilities:
- CNC turned construction with smooth bore and precise knurling
- Galvanized finish for excellent corrosion resistance
- Material options: Iron, stainless steel, brass, aluminum
- Customizable parameters: Diameter, length, wall thickness
- Common applications: Fasteners, wire harness connectors, instrument bushings, furniture hardware
Manufacturing Capabilities: From Prototype to Mass Production
Our vertically integrated production system ensures complete control over quality and delivery timelines:
| Capability | Details |
|---|---|
| Material Processing | Cold rolled steel, stainless steel, aluminum, copper, brass, engineering plastics |
| Precision Tolerance | ±0.01mm for CNC parts, ±0.05mm for stamped components |
| Surface Treatments | Electroplating (Zn, Ni, Cr, Sn), anodizing, passivation, powder coating |
| Minimum Order | 100 pieces for custom parts, standard parts available from stock |
| Lead Time | 7-15 days for prototypes, 15-30 days for mass production |

Quality Assurance: ISO9001 Certified Processes
Our commitment to quality permeates every production stage:
- Incoming material inspection with spectral analysis
- In-process quality control with statistical process control (SPC)
- Final inspection including dimensional measurement and functional testing
- Batch traceability with complete production records
- Continuous improvement through customer feedback analysis
All connection components undergo rigorous testing for:
- Dimensional accuracy (CMM measurement)
- Surface finish (profilometer testing)
- Material properties (tensile testing, hardness testing)
- Electrical performance (conductivity, insulation resistance)
- Corrosion resistance (salt spray testing)
FAQ
What makes your connection contact parts different from other suppliers?
Our competitive edge comes from vertical integration – we control every production stage from raw material processing to final inspection. This enables us to maintain consistent quality while offering competitive pricing. Our ISO9001 certification and 20+ years of industry experience also ensure reliable performance for your critical applications.
Can you produce connection parts with special material requirements?
Absolutely. We regularly work with specialized materials including beryllium copper, titanium alloys, and high-temperature plastics. Our material experts can recommend optimal solutions based on your application’s electrical, mechanical, and environmental requirements.
What is your minimum order quantity for custom connection parts?
For custom-designed components, our MOQ starts at 100 pieces per design. This allows us to maintain competitive pricing while accommodating small-batch production needs. For standard products from our existing catalog, we can supply quantities as low as 10 pieces.
How do you ensure dimensional accuracy for complex connection components?
We employ multiple quality control measures: advanced CNC equipment with closed-loop feedback systems, in-process inspection using digital calipers and micrometers, and final inspection with coordinate measuring machines (CMM). Our quality engineers also develop custom inspection fixtures for complex geometries.
What surface treatments are available for corrosion protection?
Our standard surface treatments include electroless nickel plating, zinc plating with trivalent chromate, anodizing, and passivation. For marine or chemical environments, we offer specialized coatings like PTFE, HASL, and chemical conversion coatings. Our engineers can recommend the most suitable treatment based on your application conditions.
Can you provide prototypes before mass production?
Yes, we offer rapid prototyping services using both CNC machining and soft tooling stamping. Prototypes typically take 5-10 days depending on complexity, allowing you to verify design and fit before committing to mass production. We also provide first-article inspection reports with each prototype batch.
What industries do your connection components primarily serve?
Our products support diverse industries including: automotive electronics, renewable energy systems, industrial automation, medical devices, telecommunications equipment, and aerospace applications. We specialize in components for harsh environments requiring reliable electrical connections.
How do you handle design modifications during production?
We maintain flexible production lines that can accommodate design changes with minimal disruption. Our engineering team works closely with clients to evaluate modification impacts on cost and lead time. For minor changes, we can often implement them without affecting ongoing production.
What is your standard lead time for custom connection parts?
Lead times vary based on complexity and order quantity: simple stamped parts typically take 15-20 days, while CNC machined components with multiple operations may require 20-30 days. We maintain strategic raw material inventory to shorten procurement time and can expedite orders when necessary.
Do you provide packaging solutions for connection components?
Yes, we offer customized packaging solutions including blister packs, foam inserts, and custom boxes to protect components during shipping and storage. Our packaging designs consider both protection requirements and your assembly line efficiency needs.
Summary
Nanpi Haokai Hardware stands as your comprehensive partner for precision connection contact parts manufacturing. With two decades of specialized experience, ISO9001 certified processes, and a complete range of stamping and CNC capabilities, we deliver components that meet the most demanding industrial requirements. Our commitment to quality, flexibility in custom production, and global supply capabilities make us the preferred choice for businesses seeking reliable connection solutions.
Whether you require standard components or custom-engineered connection parts, our technical team is ready to collaborate on your next project. Contact us today to discuss how we can support your connection component needs with precision-engineered solutions.