Are free samples available?

Yes, we provide 1-3 free standard specification samples. Shipping is via DHL/UPS/FedEx (customer's account), and the sample cost is refundable upon bulk order confirmation.

What quality assurance measures are in place?

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

What is the warranty or guarantee?

Our products comply with ASTM/ISO standards through rigorous quality control. We are an ISO-certified manufacturer with a dedicated after-sales service management team.

Premium Heavy-Duty DIN 6334 Hexagon Coupling Nuts for Professionals

Name: Premium Heavy-Duty DIN 6334 Hexagon Coupling Nuts for Professionals
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2189312615

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

Type

Nut

Model NO.

DIN 6334

Connection

Common Bolt

Head Style

Standard

DIN, ANSI, GB, JIS, GOST, BSW

Grade

8.8/10.9/12.9

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

High Load Capacity Design: DIN 6334 hexagon coupling nuts engineered for high load capacity and secure 3D fastening.

Flexible Customization: Customizable standards, finishes, and sizes based on customer requirements and designs.

Dual Quality Assurance: Rigorous two-stage protocol: pre-production sampling and full batch torque/salt spray inspection.

Free Sample Availability: Free standard samples available with express shipping; cost refundable upon bulk order.

Wide Material Options: Available in Carbon Steel and Stainless Steel with grades 8.8, 10.9, and 12.9.

Global Manufacturing Expertise: ISO-certified manufacturer with 15 years export experience and vertical integration.

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

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

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:What materials are available for DIN 6334 nuts?

We offer DIN 6334 hexagon coupling nuts made from Carbon Steel and Stainless Steel, available in grades 8.8, 10.9, and 12.9.

Q:Can the nuts be customized?

Yes, we provide flexible customization including standards (GB, DIN, ISO, etc.), finishes (Zinc Plating, Black Oxide, etc.), and sizes based on customer requirements.

Q:What is the delivery time for orders?

Normal delivery time is 30-40 days. For samples, prototyping takes 15 working days. Peak season lead time is 1-3 months, while off-season is about one month.

Q:Is there a minimum order quantity (MOQ)?

The minimum order quantity is very low, starting from just 1 Kg, making it suitable for various industrial needs.

Q:What payment terms do you accept?

Standard terms are 30% T/T deposit with 70% balance against B/L copy. We also accept LC at sight, PayPal, Western Union, and full advance payment for orders under $1,000.