What are the payment terms?

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

What quality assurance measures are in place?

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

What standards can be customized?

Customization is available for standards including GB, DIN, ISO, and JIS.

Durable Square Taper Washers for U-Sections, DIN 434 Standard

Name: Durable Square Taper Washers for U-Sections, DIN 434 Standard
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2191817595

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

Beveled Washers

Material

Brass

Model NO.

DIN 434

Combination Washer Structure

Combination Washer Packaging

Spring Washer Type

Standards

GB, DIN, ISO, JIS

Finished

Zinc

Name

Beveled 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 434 Standard Compliance: Square taper washers strictly adhere to DIN 434 standard for U-sections.

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

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

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

Free Sample Availability: 1-3 pcs free standard samples available; cost refundable upon bulk order.

Rigorous Quality Control: Two-stage QA: pre-production sampling and full batch inspection including salt spray analysis.

Low Minimum Order Quantity: Minimum Order Quantity is only 1 Kg, suitable for small batch testing.

Global Export Experience: 15 years export experience serving North America, Europe, Australia, and Asia.

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: ≤4.70h

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 materials are available for these washers?

The washers are available in carbon steel and stainless steel.

Q:Can the size and finish be customized?

Yes, sizes are based on standards and customer requirements. Finishes include Zinc Plated, Hot Dip Galvanized, Dacromet, Nickel Plated, Black Oxide, and Plain.

Q:What is the delivery time for orders?

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

Q:What is the Minimum Order Quantity (MOQ)?

The MOQ is 1 Kg.

Q:Are free samples available?

Yes, 1-3 pcs of standard specification samples are free. Express shipping is at the customer's account. Sample cost is refundable upon bulk order confirmation.