What is your quality assurance process?

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 is the minimum order quantity?

The minimum order quantity is 1 Kg.

Where are your main markets?

We serve global markets including North America, South America, Europe, Southeast Asia, Middle East, and East Asia.

Durable Hexagon Fasteners Made with Superior Grade a Steel

Name: Durable Hexagon Fasteners Made with Superior Grade a Steel
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2191971435

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

Plain Washers

Material

Brass

Model NO.

DIN 125

Combination Washer Structure

Combination Washer Packaging

Spring Washer Type

Standards

GB, DIN, ISO, JIS

Finished

Zinc

Name

Plain 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

ISO Certified Manufacturer: Established in 2009 with rigorous two-stage quality assurance and ASTM/ISO compliance.

Flexible Customization: Full customization available from samples or designs for various fastener types.

Wide Material Selection: Carbon steel, stainless steel, and brass options with multiple surface finishes.

Fast Sample Delivery: Free standard samples available; custom prototypes delivered within 15 working days.

Global Shipping Capability: Serves North America, Europe, Asia, and other regions via Ningbo and Shanghai ports.

Comprehensive Product Range: Includes hex bolts, nuts, washers, solar racking, and precision CNC-machined parts.

Multiple Surface Finishes: Zinc plated, hot dip galvanized, Dacromet, nickel plated, and black oxide options.

Flexible Payment Terms: Accepts T/T, LC, D/P, PayPal, and Western Union for various order sizes.

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: ≤4.96h

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 I get a sample before placing a bulk order?

Yes, free samples (1-3 pcs) are available for standard specifications. Custom prototypes can be provided within 15 working days. Sample costs are 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. For orders under $1,000, full advance payment is recommended. We also accept LC, D/P, PayPal, and Western Union.

Q:Do you offer customization services?

Yes, we provide flexible customization including full customization from samples or designs. Our capabilities cover various fasteners and solar mounting systems.

Q:What is the lead time for production?

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

Q:What materials and finishes are available?

Materials include carbon steel, stainless steel, and brass. Finishes available are zinc plated, hot dip galvanized, Dacromet, nickel plated, and black oxide.