What quality assurance measures do you have?

We implement a rigorous two-stage protocol: pre-production sampling with dimensional verification and full batch inspection including torque testing and salt spray analysis.

Where is your company located?

We are located in Ningbo, China, a major port city with excellent transportation infrastructure.

What is your main product range?

Our main products include industrial fastening solutions (bolts, nuts, washers), solar energy installation systems, and precision-engineered CNC-machined components.

DIN 5406 Black Carbon Steel MB Tab Washer for Lock Nut

Name: DIN 5406 Black Carbon Steel MB Tab Washer for Lock Nut
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2192232775

Zhejiang, ChinaNingbo Yinzhou Sokun Import and Export Co., Ltd.

US$0.03

10-4,999 Pieces

US$0.02

5,000-99,999 Pieces

US$0.01

100,000+ Pieces

Product profile

Customization

Available

Type

Tab Washers

Material

Brass

Model NO.

DIN 5406

Combination Washer Structure

Combination Washer Packaging

Spring Washer Type

Standards

GB, DIN, ISO, JIS

Finished

Zinc

Name

Tab Washers

Selling Units

Building, Industry, Machinery

Package

Customer'require

Delivery Time

15-30

Transport Package

Cartons & Pallets or According to Customer''s Requ

Specification

Trademark

SOKUN

Origin

Zhejiang

HS Code

7318150000

Production Capacity

100000000

Key features

Customization Options: Flexible customization from samples or designs with full customization capabilities.

Quality Assurance: Rigorous two-stage protocol including dimensional verification and salt spray analysis.

Free Samples: 1-3 pcs standard specification samples available with cost refundable upon bulk order.

ISO Certified: Established in 2009, ISO-certified manufacturer with comprehensive R&D capabilities.

Global Service: Serving global markets including North America, Europe, Asia, and the Middle East.

Low MOQ: Minimum Order Quantity starts at just 1 Kg for flexible purchasing.

Fast Delivery: Standard delivery time is 30-40 days with prototyping within 15 working days.

Diverse Products: Expertise in industrial fasteners, solar racking systems, and CNC-machined components.

Company profile

High Repeat Buyers ChoiceODM ServicesR&D CapabilitiesProduction Process Visualization

Ningbo Yinzhou Sokun Import and Export Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 15 Years CertifiedNearest Port: Shanghai Port, Ningbo PortAverage Response Time: ≤6.44h

AI-Powered supplier vetting

SummarySokun is a limited company with 21 employees, related companies, and product coverage including fasteners, machined parts, and stamping parts. It supports customization from samples and designs, offers ODM services, and reports OEM service for well-known brands. Quality processes include quality assurance, documented inspection instructions, and complaint-handling records, although finished-product inspection is random and only one quality inspector is reported. Production-related strengths include in-stock capability, CNC and punching equipment, and one-month stated lead times in both peak and off-season periods. Key limitations are the absence of a valid manufacturing-capacity contract with related subcontractors, no overseas warehouse, branches, agents, or showrooms, and no documented R&D audit materials, new products in the past year, or R&D patents. Financial credibility cannot be determined from the provided information.

After-Sales capabilityThe supplier has a clear customer-complaint procedure with followed records and accepts several quotation and payment terms. However, it has no overseas warehouse, showroom, agent, or branch, and reports zero countries with overseas services, limiting evidence of localized after-sales support.

R&D capabilityThe supplier provides ODM and multiple customization-based design services, but reports no new products during the past year, no available SDK, no R&D audit documentation, and zero R&D patents. These facts indicate design support but limited documented evidence of independent innovation.

Production capacityProduction evidence includes CNC and punching equipment, in-stock capability, one-month lead times in both peak and off-season, and a product scope aligned with machined and stamping parts. Nevertheless, there is no valid manufacturing-capacity contract with related subcontractors, which creates a documented capacity-governance weakness.

Customization capabilityThe supplier explicitly supports customization from samples, designs, full customization, flexible customization, and minor customization, and also offers ODM services. This is direct evidence of broad customization capability.

Product Q&A

Q:What is the minimum order quantity?

The minimum order quantity is 1 Kg.

Q:Can you provide free samples?

Yes, free samples of 1-3 pcs standard specification are available. The sample cost is refundable upon bulk order confirmation.

Q:What are the payment terms?

Standard terms are 30% T/T deposit with 70% balance against Bill of Lading copy. For orders under $1,000 USD, full advance payment is recommended. SWIFT, LC at sight, and other methods are accepted.

Q:What is the delivery time?

Standard delivery time is normally 30-40 days. Customized samples can be prototyped within 15 working days.

Q:Is customization available?

Yes, we offer flexible customization, including customization from samples, designs, and full customization services.