Are free samples available?

Yes, free samples of 1-3 standard pieces are available. Express shipping costs are covered by the customer, but sample costs are refundable upon bulk order confirmation.

What quality assurance measures do you implement?

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

What is the warranty or guarantee for these products?

Our ISO-certified manufacturing ensures consistent compliance with ASTM/ISO standards through rigorous quality control and material certification prior to shipment.

Premium Structural Bolting Round Washers for DIN 6916 Standards

Name: Premium Structural Bolting Round Washers for DIN 6916 Standards
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2192128095

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

Plain Washers

Material

Brass

Model NO.

DIN 6916

Combination Washer Structure

Combination Washer Packaging

Spring Washer Type

Standards

GB, DIN, ISO, JIS

Finished

Zinc

Name

Plain 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

DIN 6916 Standard Compliance: High-quality round washers manufactured strictly to DIN 6916 standards for structural bolting.

Flexible Customization Options: Customizable standards (GB, DIN, ISO, JIS), finishes, and packaging based on customer requirements.

ISO Certified Manufacturer: Established in 2009, ISO-certified factory with comprehensive R&D and vertically integrated production.

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

Free Sample Availability: Free standard samples (1-3 pcs) available; prototyping within 15 days; cost refundable on bulk order.

Global Market Experience: Serving clients in North America, Europe, Australia, and Asia with 15 years of export experience.

Low Minimum Order Quantity: Flexible MOQ starting from just 1 Kg, suitable for small trials and large industrial projects.

Multiple Finish Options: Available finishes include Zinc Plated, Hot Dip Galvanized, Dacromet, Nickel Plated, and Black Oxide.

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: ≤5.09h

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 material and standard for these washers?

The washers are made of carbon steel or stainless steel and comply with the DIN 6916 standard for high-tensile structural bolting.

Q:Can the washers be customized?

Yes, we offer flexible customization including standards (GB, DIN, ISO, JIS), finishes (Zinc, Galvanized, etc.), and packaging based on your requirements.

Q:What is the minimum order quantity (MOQ)?

The minimum order quantity is 1 Kg, allowing for small trial orders or large bulk purchases.

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, full advance payment is recommended.

Q:How long is the delivery time?

Normal delivery time is 30-40 days. Peak season lead time is one month, while off-season is also approximately one month.