What is your delivery time?

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

Where is your company located?

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

High-Quality DIN 128 (A) Curved Spring Lock Washers for Sale

Name: High-Quality DIN 128 (A) Curved Spring Lock Washers for Sale
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2200149825

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

Spring Washers

Material

Brass

Model NO.

DIN 128

Combination Washer Structure

Combination Washer Packaging

Spring Washer Type

Standards

GB, DIN, ISO, JIS

Finished

Zinc

Selling Units

Building, Industry, Machinery

Package

Customer'require

Delivery Time

15-30

Name

Spring Washers

Service

OEM ODM Custom Service

Sample

Availabe

Transport Package

Cartons & Pallets or According to Customer''s Requ

Specification

Trademark

SOKUN

Origin

Zhejiang

HS Code

7318150000

Production Capacity

100000000

Key features

Customizable Sizes: Available according to customer requirements and reference standards.

Multiple Finishes: Options include Zinc Plated, Hot Dip Galvanized, Dacromet, Nickel Plated, Black Oxide, and Plain.

OEM/ODM Service: Flexible customization available from samples or designs with full customization support.

ISO Certified Manufacturer: Established in 2009 with vertically integrated production and rigorous quality assurance.

Free Samples Available: 1-3 pcs of standard specifications provided free; cost refundable upon bulk order.

Global Market Reach: Serving clients in North America, Europe, Oceania, Asia, South America, Africa, and the Middle East.

Rigorous Quality Control: Two-stage protocol including pre-production sampling and full batch inspection with torque testing.

Fast Delivery Options: Express shipping via DHL/UPS/FedEx available for samples; custom samples within 15 working days.

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:Can you provide a sample?

Free samples are available (1-3 pcs standard specification). Express options include DHL/UPS/FedEx. Customized samples take 15 working days. Sample cost is 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 accept SWIFT, LC, D/P, PayPal, and Western Union.

Q:What is your quality assurance process?

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

Q:What products do you manufacture?

Our portfolio includes industrial fastening solutions (bolts, screws, nuts, washers) and solar energy installation systems (racking, mounting accessories, cable management).

Q:Do you offer customization services?

Yes, we offer flexible customization from samples or designs, including non-standard parts and full customization for specific requirements.