What is the material of the product?

Our products are all made of pure brass and do not include products made of zinc alloy, aluminum alloy, stainless steel, etc.

If I would like to develop my design, Can you custom my design? Can you make it only for us, and will not show it to anyone else?

Yes, We have our own R&D dept., OEM&ODM service are available. And will not show it to others.

Yes, you can directly place a sample order on the product page. We usually provide 1 piece sample per model for evaluation purpose.

Koppalive 5 Inch Brass Interior Spring Door Hinge Flush Hinges for Door

Name: Koppalive 5 Inch Brass Interior Spring Door Hinge Flush Hinges for Door
Brand: Zhejiang Zhangshi Hardware Co., Ltd
SKU: 2103620375

Zhejiang, ChinaZhejiang Zhangshi Hardware Co., Ltd

US$14.85

100 Pairs

Product specifications

Color

Size

Sample price:US$20.00/pair.Request sample

Product profile

Customization

Available

After-sales Service

Return and Replacement

Warranty

1 Year

Model NO.

7013

Type

270° Hinge

Finish

Brass Plated

Material

Brass

Design Style

Minimalist/European/Modern

Craft

CNC Cutting

Accessories

Stainless Steel Tapping Screws

Color

Coffee Black,Red Gold,Gold Polished

Lead Time

15-30days

Head Type

Flat Head or Crown Head

Transport Package

Packaging Can Be Based on Customer Requirements

Specification

4inch, 5inch

Trademark

KOPPALIVE

Origin

China, Zhejiang

Production Capacity

10000pairs Per Month

Key features

Solid Brass Material: Made of pure solid brass, excluding zinc alloy, aluminum, or stainless steel.

Customizable Design: Supports custom dimensions, materials, colors, and surface finishes like powder coating.

Anti-Oxidation Finish: Lacquered with anti-oxygen oil sealing for durability and easy maintenance.

OEM/ODM Service: Professional manufacturer offering full customization including branding and packaging.

Strict Quality Control: 100% inspection covering dimensions, finish, and structural strength before shipment.

Fast Lead Time: Efficient production system ensures 15-20 working days lead time for most orders.

1-Year Warranty: Comprehensive 1-year warranty coverage for product quality assurance.

Low MOQ: Minimum order quantity as low as 1 piece for certain products with available stock.

Company profile

Fast DeliveryFull CustomizationOEM ServicesQuality Assurance

Zhejiang Zhangshi Hardware Co., Ltd

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 10 Years CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤5.83h

AI-Powered supplier vetting

SummaryThe supplier demonstrates manufacturing, customization, export, and service-process capabilities. It provides 3D design, ODM, OEM, SDK-supported R&D, and multiple customization modes, while operating three production lines and maintaining contracts with associated subcontractors. Quality control includes two inspectors, written inspection instructions, and documented complaint and corrective-action procedures. The supplier has ten years of international trade experience and exports primarily to Europe. However, no new products were reported in the past year, supplier-management-system certification is listed as NIL, and there is no overseas warehouse or showroom. Evidence of customer cases is limited to a general statement about serving well-known brands, without named examples or supporting details.

Supplier typeThe supplier is a manufacturing-oriented company with three production lines, in-stock capability, valid manufacturing contracts with associated subcontractors, and ten years of international trade experience. Its primary export market is Europe, indicating an established export-manufacturing profile.

CertificationsThe supplier’s management-system certification is explicitly listed as NIL. CE capability is reported, but the slices do not identify a specific CE certificate or broader certification portfolio, so there is evidence of a certification shortfall at the management-system level.

After-Sales capabilityThe supplier has written and followed procedures for service assessment, corrective and preventive actions, and customer complaints. It also supports multiple quotation and payment terms and maintains in-stock capability, although it has no overseas warehouse or showroom.

R&D capabilityThe supplier offers 3D software design, ODM, OEM for popular brands, and SDK availability, supported by R&D engineers with stated experience. However, it also reports no new products in the past year, indicating strong service-oriented development capability but limited recent product innovation evidence.

Production capacityProduction resources include three production lines and listed CNC, drilling, punching, hydraulic, blanking, spring-grinding, and lathe equipment. The supplier reports in-stock capability, valid subcontractor manufacturing contracts, 15 qualified service suppliers, and one-month average lead times in both peak and off-season periods.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, and flexible customization. Its 3D design, ODM, OEM, and SDK capabilities further support tailored product development.

Product Q&A

Q:Are you a factory or trading company?

We are a professional manufacturer specializing in solid brass hardware with our own integrated production facility including forging, machining, polishing, plating, and assembly.

Q:How does your factory do regarding quality control?

We have a strict and systematic quality control system in place to ensure consistent product quality at every stage of production. Our quality control process covers the entire workflow, including raw material inspection, forging, CNC machining, polishing, electroplating, assembly, and final packaging. During production, each process has dedicated quality checkpoints to monitor dimensions, surface finish, color consistency, and structural strength. Before shipment, all products undergo a final i

Q:How can I get a quotation? When can I get the quotation?

Quotation will be offered within 24 hours. It will be more efficient if you tell size, quantity, special requirement.

Q:Can you customize products?

We offer customized solutions that meet market demand. Product Modification: Custom dimensions, materials selection (solid brass), and color/surface finishes (powder coating, and brushed treatments). Packaging Solutions: Tailored packaging designs for e-commerce, retail display, or bulk industrial packaging. Brand Customization: Laser engraving, silk printing, and custom etching services for brand identification.

Q:What is the price of shipping?

The price varies depending on the chosen logistics method and the delivery port.