Are free samples available?

Yes, free samples are available for customers to check quality before placing an order.

What certifications does the factory have?

The factory is certified under the ISO9001:2015 management system.

Where is the factory located and how do you ship?

Located in Dongguan, China, we ship via sea, air, or express from Shenzhen, HongKong, or Guangzhou ports.

Original Factaory Steeliron Carbon Steel Black Oxide Internal Drive Screw Plugs

Name: Original Factaory Steeliron Carbon Steel Black Oxide Internal Drive Screw Plugs
Brand: Dongguan Zhengchen Hardware Co., Ltd.
SKU: 2070627142

Guangdong, ChinaDongguan Zhengchen Hardware Co., Ltd.

US$0.87

1,000 pieces

Product profile

Customization

Available

Material

Stainless Steel

Head Style

Hex

Model NO.

ZMSW

Standard

ISO

Modelnumber

Zmsw

Selling Units

Single Item

Measurement System

Inch

Size

Customers'request

Sample

Avaliable

Single Package Size

13.5X8.5X9.5.Cm

Surface Treatment

Nickel Plated

Packing

Carton

Product Name

Screw Plugs

Single Gross Weight

0.050kg

Finish

Zinc

Application

Industrial Equipment

Quality Control

100% Inspection

Trademark

Origin

Guangdong, China

Key features

OEM/ODM Customization: Supports full customization from samples, designs, or minor adjustments.

Low MOQ: Minimum Order Quantity is just 1 PCS, ideal for testing and small batches.

Fast Delivery: Average lead time within 15 workdays for both peak and off-season.

Quality Assurance: 6 QA/QC inspectors perform random visual and function inspections.

ISO9001 Certified: Manufacturing process certified under ISO9001:2015 management system.

Free Samples: Free samples available for customers to verify quality before ordering.

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

11 Years Experience: Professional manufacturer with 11 years of export experience.

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: ≤4.53h

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.