What quality assurance protocols do you follow?

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

What are your main products?

Our main products include industrial fastening solutions (bolts, nuts, washers) and solar energy installation systems (racking, mounting accessories, and cable management).

Where is your company located?

We are located in Ningbo, China, a major port city with excellent transportation infrastructure, and have been established since 2009.

Durable DIN 6799 Compliant Retaining Washers for Industrial Use

Name: Durable DIN 6799 Compliant Retaining Washers for Industrial Use
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2192129995

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

US$0.01-1.00

10,000 Pieces

Product profile

Customization

Available

Type

Radially Assembled Rings

Material

Brass

Model NO.

DIN 6799

Combination Washer Structure

Combination Washer Packaging

Spring Washer Type

Standards

GB, DIN, ISO, JIS

Finished

Zinc

Name

Radially Assembled Rings

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

DIN 6799 Compliance: Product meets strict DIN 6799 standards for reliable industrial retaining washer performance.

Flexible Customization: Full customization available from samples or designs to meet specific client requirements.

ISO Certified Manufacturer: Established in 2009, we are an ISO-certified fastener manufacturer with vertical integration.

Free Sample Availability: Free standard samples (1-3 pcs) available with express shipping options via DHL/UPS/FedEx.

Diverse Material Options: Available in carbon steel and stainless steel with finishes like Zinc, Galvanized, and Nickel.

Rigorous Quality Assurance: Two-stage protocol includes pre-production sampling and full batch torque/salt spray testing.

Global Market Experience: Serving clients across North America, Europe, Asia, and the Middle East for over 15 years.

Competitive Payment Terms: Flexible terms including 30% T/T deposit, LC at sight, and options for small amounts.

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: ≤4.82h

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:Can you provide samples?

Free samples (1-3 pcs) are available. Express shipping via DHL/UPS/FedEx is an option. Customized samples take 15 working days, and sample costs are refundable upon bulk order confirmation.

Q:What are your payment terms?

Standard terms are 30% T/T deposit with 70% balance against Bill of Lading. For orders under $1,000, full advance payment is recommended. We also accept SWIFT, LC at sight, PayPal, and Western Union.

Q:Do you offer customization services?

Yes, we offer flexible customization including from samples, designs, and full customization. We can produce non-standard parts and fasteners according to specific requirements.

Q:What is your delivery time?

Normally, delivery takes 30-40 days. During peak seasons, lead time is one month, and during off-seasons, it is also one month.

Q:What is your minimum order quantity?

The minimum order quantity is 1 Kg.