OEM & CUSTOM FASTENERS

At Handan Dongchao Hardware Products Co., Ltd., we provide customized fastener manufacturing services for distributors, wholesalers, importers, contractors, and industrial buyers. Whether you need a modified standard product or a completely customized solution, our production team can support your requirements from evaluation to mass production.

Many industrial buyers source products based on project specifications rather than catalog items.
We support manufacturing according to:
• 2D technical drawings
• 3D CAD drawings
• Physical samples
• Existing product references
• Project specifications

Before production begins, our team reviews dimensions, material requirements, surface treatments, packaging specifications, and production feasibility to ensure the final product matches customer requirements.
This review process helps reduce production errors and improves consistency between approved samples and mass production orders.

Different applications often require dimensions that are not available in standard inventory.
We can customize:
• Diameter
• Length
• Thread length
• Thread pitch
• Head dimensions
• Drill point design
• Shank configuration

For self-drilling screws and self-tapping screws, drilling performance and thread design can be adjusted according to installation materials such as steel, metal sheets, wood, or composite panels.

Material selection directly affects product strength, corrosion resistance, and service life.
Available materials include:
• Low carbon steel
• Medium carbon steel
• Stainless steel 304
• Stainless steel 316
• Alloy steel

Material recommendations can be provided based on application environments such as indoor construction, outdoor installation, coastal areas, industrial facilities, or high-humidity environments.

Different environments require different levels of corrosion protection.

Available surface treatments include:
Zinc Plating
Commonly used for indoor applications and general industrial environments.

Yellow Zinc Plating
Provides additional appearance options and corrosion resistance for selected applications.

Black Oxide
Suitable for applications requiring a black surface finish.

Hot Dip Galvanizing
Frequently used for steel structures, outdoor construction, and infrastructure projects.

Ruspert Coating
Widely used for roofing screws and outdoor fastening systems where corrosion resistance is important.

Our team can recommend suitable coating solutions based on environmental exposure and project requirements.

Packaging requirements vary between wholesalers, distributors, retailers, and project suppliers.
Available options include:
Bulk Packaging
Suitable for construction projects and industrial users.
Cartons
Woven bags
Palletized shipments

Retail Packaging
Suitable for hardware stores and retail distribution.
Small boxes
Mixed-size kits
Shelf-ready packaging

Customized Packaging
Available for distributors and private-label customers.
Custom carton printing
Product labels
Barcode labels
Packing list customization

Packaging can be designed according to customer sales channels and logistics requirements.

Many of our customers sell fasteners under their own brands.
We support private-label packaging services including:
• Customer logo printing
• Product identification labels
• Barcode systems
• Custom packaging artwork

This helps distributors strengthen brand recognition while maintaining consistent product presentation across different markets.

For customized products, samples can be prepared before large-scale production.
Sample development allows customers to verify:
• Dimensions
•Material selection
• Surface finish
• Packaging requirements

This process helps reduce sourcing risks and provides additional confidence before placing volume orders.

Whether you require a drawing-based product, a customized specification, private-label packaging, or a special coating solution, our team can review your requirements and provide a practical manufacturing solution based on your application and market needs.