What quality assurance measures do you implement?

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

What materials and finishes are available for these bolts?

Materials include carbon steel and stainless steel. Available finishes are Zinc Plated, Hot Dip Galvanized, Dacromet, Nickel Plated, Black Oxide, and Plain.

Industrial-Grade Heavy-Duty DIN 6921 Hex Flange Bolts for Maximum Strength

Name: Industrial-Grade Heavy-Duty DIN 6921 Hex Flange Bolts for Maximum Strength
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2187893315

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

US$0.10

1,000-4,999 Pieces

US$0.09

5,000-9,999 Pieces

US$0.08

10,000-49,999 Pieces

US$0.06

50,000+ Pieces

Product profile

Customization

Available

Material

Stainless Steel

Type

Socket Cap Head

Model NO.

DIN 6921

Connection

Common Bolt

Head Style

Round

Standard

DIN, ANSI, GB, JIS, BSW, GOST

Grade

8.8/10.9/12.9

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Passivation, Zinc Plating, Black, Plainhdg, Yellow

Standards

DIN912

Finished

Passivation, Zinc Plating, Black, Plainhdg, Yellow

Certificate

ISO9001

Selling Units

Building, Industry, Machinery

Package

Customer'require

Delivery Time

15-30

Name

Hex Flange Bolts

Service

Customized OEM ODM Service

Quality

100% Professional Test

Transport Package

Cartons & Pallets or According to Customer''s Requ

Specification

Allen Bolt

Trademark

SOKUN

Origin

Zhejiang

HS Code

7318150000

Production Capacity

100000000

Key features

Custom OEM/ODM Service: Flexible customization from samples, designs, or full customization based on customer requirements.

Rigorous Quality Assurance: Two-stage protocol including pre-production sampling and full batch inspection with torque and salt spray tests.

ISO Certified Manufacturer: Established in 2009, ISO-certified with comprehensive R&D and vertically integrated production facilities.

Free Sample Availability: Free standard samples available; sample cost refundable upon bulk order confirmation.

Wide Material & Finish Options: Carbon steel and stainless steel with finishes like Zinc Plated, Hot Dip Galvanized, Dacromet, and Black Oxide.

Low Minimum Order Quantity: Flexible MOQ starting from just 1 Kg to accommodate diverse client needs.

Global Market Experience: Serving North America, Europe, Asia, and other regions with 15 years of export experience.

Multiple Payment Terms: Accepts T/T, LC at sight, D/P, PayPal, and Western Union for flexible transaction options.

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: ≤5.09h

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 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:Can you provide free samples?

Yes, free samples of 1-3 pieces in standard specifications are available. The sample cost is refundable upon bulk order confirmation. Express shipping costs are covered by the customer's account.

Q:What is the delivery time?

Normal delivery time is 30-40 days. For peak seasons, lead time is one month, and for off-seasons, it is also one month. Customized samples can be prepared within 15 working days.

Q:What customization services are available?

We offer flexible customization including OEM/ODM services. Customers can customize from samples, designs, or request full customization. Standards, finishes, and specifications can be tailored to requirements.