What is the material and surface finish?

The material is alloy carbon steel with a black oxide surface finishing.

What certifications does the product have?

The product is certified under ISO9001:2015.

What are the available dimensions?

Dimensions are selectable in standard and precision grades with 0.5mm increments for T dimension.

Custom High Strength Wasm20-8-3 Carbon Steel Flat Washers 20mm X 8mm X 3mm

Name: Custom High Strength Wasm20-8-3 Carbon Steel Flat Washers 20mm X 8mm X 3mm
Brand: Dongguan Zhengchen Hardware Co., Ltd.
SKU: 2023400565

Guangdong, ChinaDongguan Zhengchen Hardware Co., Ltd.

US$1.50

500-999 Pieces

US$1.20

1,000+ Pieces

Product profile

Customization

Available

Material

Alloy

Surface Finishing

Black Oxide

Certification

ISO

Customized

Transport Package

Carton

Specification

WSSB

Production Capacity

5000000

Key features

Customized Design: Offers full customization, minor customization, and flexible customization options from samples or designs.

High Strength Material: Constructed from alloy carbon steel with black oxide surface finishing for durability.

ISO Certification: Manufactured under ISO9001:2015 management system certification ensuring quality standards.

Dimension Selectable: Features selectable T dimensions in both standard and precision grades with 0.5mm increments.

OEM and ODM Services: Provides both OEM and ODM services with 6 R&D engineers supporting new product development.

Fast Lead Time: Average lead time is within 15 workdays for both peak and off-peak seasons.

Low MOQ: Minimum Order Quantity is as low as 1 piece, suitable for small batch testing.

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

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: ≤5.07h

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.