What quality assurance protocols do you follow?

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

What are your main products?

Our main products include industrial fastening solutions (hex bolts, screws, nuts, washers) and solar energy installation systems (racking, mounting accessories, cable management).

Where is your company located?

We are headquartered in Ningbo, China, a major port city with excellent transportation infrastructure.

High-Quality Durable Steel Lock Washers for Secure Fastening

Name: High-Quality Durable Steel Lock Washers for Secure Fastening
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2191925195

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

Disc Spring

Material

Brass

Model NO.

DIN 9

Combination Washer Structure

Combination Washer Packaging

Spring Washer Type

Standards

GB, DIN, ISO, JIS

Finished

Zinc

Name

Disc Spring

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

Comprehensive Customization: Flexible customization from samples, designs, or full customization available.

ISO Certified Manufacturer: Established in 2009 with ISO certification and vertically integrated production.

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

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

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

Global Market Experience: Serving clients in North America, Europe, Asia, and other regions for 15 years.

Flexible Payment Terms: Accepts T/T, LC, D/P, PayPal, Western Union, and small-amount payments.

Low Minimum Order Quantity: Minimum Order Quantity is only 1 Kg for flexible purchasing.

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: ≤3.20h

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:Can you provide samples?

Free samples (1-3 pcs standard specification) are available. Express shipping via DHL/UPS/FedEx is supported. Customized samples take 15 working days. Sample cost is refundable upon bulk order confirmation.

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 USD, full advance payment is recommended. We also accept SWIFT transfer, LC at sight, D/P, PayPal, and Western Union.

Q:What is your customization capability?

We offer flexible customization including customization from samples, designs, and full customization. We can produce non-standard parts, fasteners, and machined parts according to specific requirements.

Q:What is the minimum order quantity?

The Minimum Order Quantity is 1 Kg.

Q:How long is the delivery time?

Delivery time is normally 30-40 days. During peak season, lead time is one month to three months. During off-season, it is one month.