What advantages we have?

1.Strict QC: For each order, strict inspection will be carried out by the QC department before shipping. The bad quality will be avoid within door. 2.Shipping: We have shipping department and forwarder, so we can promise faster delivery and make the goods well protected. 3.Our factory professional production metal box drawer system,hinge,concealed drawer slides,ball bearing slides, etc furniture fittings

Modern Steel Nickel Concealed Frog Hinge for Wooden Doors 4 Inch Hinge

Name: Modern Steel Nickel Concealed Frog Hinge for Wooden Doors 4 Inch Hinge
Brand: Spider Products Limited
SKU: 2293802575

Guangdong, ChinaSpider Products Limited

US$0.168

3,000-7,999 Pieces

US$0.154

8,000-999,999 Pieces

US$0.10

1,000,000+ Pieces

Product specifications

Color

Size

Sample price:US$0.19/piece.Request sample

Product profile

Type

Frog Hinge

Specification

Iron Hinge, Customized

Angle

95-100°

Model NO.

CCH-FROG-4 INCH

Hole

With Hole

Disassembly

Fixed

Color

Sn/Ss

Customized

Condition

New

Material

Cold Rolled Steel/Stainless Steel 201 304

Weight

Customized

Logo on Product

Yes

Logo on Carton

Yes

Salt Spray Test

24 Hours- 96 Hours

Finish

Nickle Plated/Ss Finish/ Gold / Black/Gun Black

Quality

Factory High Quality

Transport Package

Bulk Pack / Bag Pack/Box Pack/Carton Pack

Trademark

SPIDER

Origin

Guangdong, China

HS Code

8302420000

Production Capacity

5000000pieces/Years

Key features

Versatile Color Options: Available in gun black, gold, blue, rose gold, matte black, and white.

Silent Soft-Close: Built-in hydraulic damping system ensures gentle, noise-free closure.

Corrosion Resistance: Premium alloy material is rustproof and moisture-resistant.

High Durability: Tested for over 50,000 cycles without jamming.

Customizable Standard: Standard and weight can be customized according to requirements.

Concealed Design: Fully hidden after installation to enhance space elegance.

Wide Opening Angles: Available in -45, -30, 30, 45, 90, 110, 135, 165, 175, and 180 degrees.

Free Samples Available: Samples provided for testing and quality check.

Company profile

High Repeat Buyers ChoiceYears of Export ExperienceExperienced TeamIn-stock Capacity

Spider Products Limited

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedCustomization Options: Flexible customization CertifiedExport Year: 13 Years CertifiedNearest Port: Guangzhou Port, Shenzhen PortAverage Response Time: ≤0.78h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummarySPIDER is a limited company with 89 employees, associated companies, and offerings in furniture hardware and stage lighting. Its stated advantages include resource integration, mass purchasing, cost control, standard production management, and strict quality control, but several operational claims lack supporting records. Quality operations show raw-material traceability, 100% finished-product inspection, and 10 QA/QC inspectors; however, inspection instructions have no written records and no quality-control test equipment was reported. The supplier has one R&D engineer, no patents, no recent new products, no ODM, OEM, or SDK capability, and no available R&D audit documentation. It reports no overseas warehouse, showroom, agents, branches, or offline trade-show participation. Complaint handling has a procedure but no written records. Financial data is limited to years identified in the submitted fields, without performance figures, so credibility cannot be confirmed. No customer cases were provided.

Supplier typeThe supplier is identified as a combined company and a limited company, with 89 employees and associated companies. Its product scope covers furniture hardware and stage lighting, indicating a multi-product supplier structure rather than a narrowly specialized entity.

R&D capabilityInnovation capability is weakly supported: the supplier reports no new product during the past year, no ODM service, no OEM for popular brands, no SDK, zero patents, no R&D audit documentation, and only one R&D engineer. The engineer is assigned flexible customization, but the broader evidence does not demonstrate established product innovation.

Production capacityThe supplier describes standard production management and strict quality control, operates an assembly and packing line, employs 10 quality assurance and quality-control inspectors, and performs 100% finished-product inspection with raw-material traceability. Nevertheless, it reports zero quality-control test equipment and lacks written inspection records, so production capability is supported operationally but not comprehensively documented.

Customization capabilityFlexible customization is explicitly reported for both the R&D engineer’s responsibilities and design services capability. This provides direct evidence that the supplier accepts customization, although no examples, scope, or delivery performance for customized products are supplied.