Do you provide free samples?

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

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.

Is OEM/ODM service available?

Yes, we offer flexible customization, including customization from samples, designs, and full customization services.

Durable Carbon Steel Lock Washers for M5 M6 M8 Fastening Needs

Name: Durable Carbon Steel Lock Washers for M5 M6 M8 Fastening Needs
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2188990595

Zhejiang, ChinaNingbo Yinzhou Sokun Import and Export Co., Ltd.

US$0.10

1,000-4,999 Pieces

US$0.08

5,000-9,999 Pieces

US$0.07

10,000-99,999 Pieces

US$0.05

100,000+ Pieces

Product profile

Customization

Available

Type

Washer

Material

Brass, Stainless Steel, Steel

Model NO.

DIN 6798

Combination Washer Structure

Combination Washer Packaging

Spring Washer Type

Standards

ISO, DIN, ANSI, JIS, BS

Finished

Black, Plain

Supply Ability

200 Tons

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

Customizable Standards: Supports ISO, DIN, ANSI, JIS, and BS standards for global compliance.

Flexible Finishes: Available in Black, Plain, Zinc Plated, Hot Dip Galvanized, Dacromet, and Nickel Plated.

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

Rapid Prototyping: Customized samples can be produced within 15 working days.

Rigorous Quality Control: Two-stage QA including pre-production sampling and full batch torque/salt spray testing.

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

Flexible Customization: Offers full customization from samples or designs with flexible options.

Global Shipping: Fast delivery via DHL/UPS/FedEx from major ports like Shanghai and Ningbo.

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: ≤4.93h

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 lock washers?

We provide washers made from Brass, Stainless Steel, and Carbon Steel.

Q:Can the size and finish be customized?

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

Q:What is the minimum order quantity?

The Minimum Order Quantity is 1 Kg.

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 LC at sight, D/P, PayPal, and Western Union.

Q:How long is the delivery time for bulk orders?

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