What quality standards do you follow?

We follow a rigorous two-stage quality assurance protocol including pre-production sampling and full batch inspection with torque testing and salt spray analysis to ensure ASTM/ISO compliance.

What is the minimum order quantity?

The minimum order quantity is 1 Kg.

Premium Quality Hexagon Collar Nuts for Engineering Projects

Name: Premium Quality Hexagon Collar Nuts for Engineering Projects
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2246346085

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

US$0.01-0.10

10,000 Pieces

Product profile

Customization

Available

Material

Carbon Steel, Stainless Steel,Brass

Type

Flanged or Collared Hex Nuts

Model NO.

DIN 6331 - 2003

Connection

Head Style

Standard

DIN, ANSI, GB, JIS, GOST, BSW

Grade

Standards

GB, DIN, ISO, JIS

Finished

Passivation, Zinc Plating, Black, Plainhdg, Yellow

Certificate

ISO9001/SGS

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

Customization Options: Flexible customization available from samples and designs with full customization support.

Diverse Material Selection: Available in Carbon Steel, Stainless Steel, Brass, Aluminum, and Titanium Alloys.

Wide Standard Compliance: Meets DIN, ANSI, GB, JIS, GOST, and BSW standards including DIN 6331-2003.

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

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

Free Sample Availability: Free standard samples (1-3 pcs) available with express shipping options.

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

Flexible Payment Terms: Accepts T/T, LC, D/P, PayPal, and Western Union with negotiable terms for bulk orders.

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 you provide samples?

Free samples (1-3 pcs) 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. For orders under $1,000, full advance payment is recommended. We accept SWIFT, LC, D/P, PayPal, and Western Union.

Q:What materials are available?

We offer Carbon Steel, Stainless Steel, Brass, Aluminum, and Titanium & Alloys.

Q:Do you offer customization?

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

Q:What is the delivery time?

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