Do you provide free samples?

Yes, we provide 1-3 free standard specification samples. Sample costs are refundable upon confirmation of a bulk order.

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. We also accept LC, D/P, PayPal, and Western Union.

What quality assurance measures do you have?

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

High-Quality Medium Washers for Reliable Bolt Fastening Solutions

Name: High-Quality Medium Washers for Reliable Bolt Fastening Solutions
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2192078555

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 1440

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 1440 Standard Compliance: Manufactured to DIN 1440 standard for robust bolt applications in construction.

Flexible Customization Options: Offers customization from samples, designs, and full customization services.

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

Rigorous Quality Assurance: Two-stage protocol including pre-production sampling and full batch inspection.

Free Sample Availability: Provides 1-3 free standard samples with refundable cost upon bulk order.

Wide Material Selection: Available in carbon steel and stainless steel with various finishes like zinc plating.

Global Market Reach: Serves clients in North America, Europe, Australia, and Asia with long-term relationships.

Low Minimum Order Quantity: Flexible MOQ starting from just 1 Kg for various fastener products.

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: ≤4.67h

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 standards do your washers comply with?

Our washers comply with DIN 1440 standard, ensuring robust performance for bolt applications in construction projects.

Q:What materials are available for these washers?

We offer washers made from carbon steel and stainless steel, with finishes including zinc plating, hot dip galvanized, Dacromet, nickel plating, black oxide, and plain.

Q:Can I customize the size or specifications?

Yes, we provide flexible customization options including customization from samples, designs, and full customization. Sizes are available according to customer requirements.

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

The minimum order quantity is 1 Kg, allowing for flexible purchasing for various fastener needs.

Q:How long is the delivery time?

Standard delivery time is normally 30-40 days. During peak season, it may take 1-3 months, while off-season lead time is approximately one month.