What is your quality control process?

We have 6 QA/QC inspectors performing random visual and functional inspections on finished products.

Are you ISO certified?

Yes, our management system is certified under ISO 9001:2015.

Professional Wholesale Black Countersunk Head Hex Screws Flat Head Hex Screws

Name: Professional Wholesale Black Countersunk Head Hex Screws Flat Head Hex Screws
Brand: Dongguan Zhengchen Hardware Co., Ltd.
SKU: 2067906762

Guangdong, ChinaDongguan Zhengchen Hardware Co., Ltd.

US$0.10

500-999 Pieces

US$0.01

1,000+ Pieces

Sample price:US$0.97/piece.Request sample

Product profile

Customization

Available

Type

Price

Negotiated

Model NO.

ZC1204

Quality Control

100% Inspection

OEM

Yes

Lead Time

3-7 Days

Delivery Time

7 Days Around by FedEx/UPS/DHL/TNT

Delivery Way

by Sea, Air, Express

Transport Package

Poly Bag-Small Box-Carton with Label

Specification

Base on the quantity of goods

Trademark

Origin

China

HS Code

73181600

Production Capacity

3000 Units Per Day

Key features

OEM/ODM Services: Full customization available from samples, designs, or flexible minor customization.

Free Samples: One free sample provided for orders to ensure product quality and fit.

ISO 9001:2015 Certified: Manufacturing process certified under international quality management standards.

Fast Lead Time: Peak and off-peak season lead times both within 15 working days.

100% Quality Inspection: Rigorous visual and functional inspection with 6 dedicated QA/QC inspectors.

Flexible Payment Terms: Accepts T/T, L/C, D/P, PayPal, Western Union, and small-amount payments.

Low MOQ: Minimum Order Quantity is just 1 piece for trial or small batch orders.

Global Shipping: Fast delivery via Sea, Air, or Express from Shenzhen, Hong Kong, or Guangzhou.

Company profile

In-stock CapacityFast DeliveryYears of Export ExperienceCustomization from Designs

Dongguan Zhengchen Hardware Co., Ltd.

Guangdong, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 11 years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤4.29h

AI-Powered supplier vetting

SummaryThe supplier is identified as a factory in Dongguan operating in manufacturing. It demonstrates substantial customization, OEM and ODM capabilities, independent R&D activity, and six R&D engineers responsible for technical support and new product development. Manufacturing support includes valid contracts with related subcontractors, inventory capability, and stated peak- and off-season lead times within 15 working days. Quality and service processes are documented, including finished-product inspection, corrective and preventive actions, and complaint handling. The supplier has exported for 11 years, with exports representing 11%–20% of total sales, and is located near Shenzhen Port. Evidence is insufficient to confirm certifications, detailed after-sales performance, or financial credibility. The supplier lacks an available SDK, overseas warehouse, and overseas showroom.

Supplier typeThe supplier is explicitly identified as a factory located in Dongguan, and its associated companies operate in manufacturing. This supports classification as a manufacturing supplier rather than a trading-only company.

After-Sales capabilityThe supplier has six R&D engineers whose responsibilities include technical support for production and after-sales service. It also has documented complaint-handling and corrective/preventive-action procedures with records, but no specific after-sales service performance or coverage details are provided.

R&D capabilityThe supplier reports new products in the past year, provides ODM services, and has an independent R&D department. Six R&D engineers handle technical confirmation, production and after-sales support, and new product development; however, no SDK is available.

Production capacityProduction support is evidenced by six quality-control staff, four quality-control test equipment units, valid contracts with associated subcontractors, inventory capability, and stated lead times within 15 working days in both peak and off seasons. The supplier also reports 172 qualified service-capability suppliers, although detailed production capacity volumes are not provided.

Customization capabilityThe supplier explicitly offers customization from samples and designs, full, minor, and flexible customization. It also provides customized processing of non-standard parts and OEM one-stop solutions, demonstrating broad customization coverage.

Client casesThe supplier states that it provides OEM services for well-known brands and describes delivering complete solutions and non-standard-part processing for customer needs. No named customers, project examples, or independently verifiable case details are supplied.