What is the typical delivery time?

Normal delivery time is 30-40 days. During peak seasons, it may take 1-3 months, while off-season lead time is about one month.

How do you ensure product quality?

We use a two-stage quality assurance system: pre-production sampling with dimensional verification and full batch inspection including torque testing and salt spray analysis before loading.

What certifications does the manufacturer hold?

We are an ISO-certified manufacturer established in 2009, specializing in precision fasteners and solar mounting systems with rigorous quality protocols.

Precision Curved Spring Washers DIN 6904 for Secure Fastening

Name: Precision Curved Spring Washers DIN 6904 for Secure Fastening
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2200197425

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 Lock Washers

Material

Brass

Model NO.

DIN 6904

Combination Washer Structure

Combination Washer Packaging

Spring Washer Type

Standards

GB, DIN, ISO, JIS

Finished

Zinc

Name

Spring Lock Washers

Selling Units

Building, Industry, Machinery

Package

Customer'require

Delivery Time

15-30

Sample

Availabe

Service

OEM ODM Custom Service

Transport Package

Cartons & Pallets or According to Customer''s Requ

Specification

Trademark

SOKUN

Origin

Zhejiang

HS Code

7318150000

Production Capacity

100000000

Key features

DIN 6904 Standard Compliance: Precision curved spring washers strictly adhering to DIN 6904 standards for secure fastening.

Flexible Customization Options: Offering full customization from samples or designs, including standards, finishes, and sizes.

Diverse Material Selection: Available in Carbon steel and Stainless steel to meet various environmental and strength requirements.

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

Rigorous Quality Assurance: Two-stage protocol: pre-production sampling and full batch inspection with torque and salt spray tests.

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

Low Minimum Order Quantity: Flexible MOQ starting from just 1 Kg, suitable for small batches and prototyping needs.

ISO Certified Manufacturer: Established in 2009, ISO-certified factory with vertical integration and lean manufacturing capabilities.

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: ≤3.01h

About Our Factory & Business Background

AddressYinzhou District, Ningbo, Zhejiang, China

Plant Area1927 square meters

Number of Employees41

Terms of PaymentLC, T/T, D/P, PayPal, Western Union, Small-amount payment

International Commercial Terms(Incoterms)FOB, CIF, CFR, EXW

Average Lead TimePeak Season Lead Time: one month, 1-3 months Off Season Lead Time: one month

Minimum Order Quantity1 Kg

Supply Chain Partners213

Our Production Capability & Technical Expertise

Main ProductsScrew, Bolt, Washer, Nut, Threaded Rod

Production Lines1

Production MachinesPunching Machine, Riveting Machine, Thread Rolling Machine, Bench Lathe, Laser Marking Machine

Own BrandYes

Our Industry Experience & Global Business Record

Year of Establishment2010-02-10

Main MarketsNorth America, South America, Europe, Southeast Asia/ Mideast, East Asia(Japan/ South Korea)

Repeat Buyers Choice50%~80%

Number of Foreign Trading Staff17

Overseas Agent/BranchNo

Our Certifications, Standards & Industry Recognition

Cooperated with Fortune 500No

Product Q&A

Q:What materials are available for these washers?

We offer Carbon steel and Stainless steel materials to suit different corrosion resistance and strength needs.

Q:Can I customize the size or finish of the washers?

Yes, we provide flexible customization from samples or designs. Sizes follow standards or customer requirements, and finishes include Zinc Plated, Hot Dip Galvanized, Dacromet, etc.

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

The minimum order quantity is 1 Kg, allowing for small batch purchases and testing.

Q:Are free samples available for testing?

Yes, we provide 1-3 pieces of free standard specification samples. The sample cost is refundable when you confirm a bulk order.

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