What quality assurance measures do you have?

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

Do you offer customization services?

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

What certifications does the manufacturer hold?

We are an ISO-certified fastener manufacturer established in 2009, ensuring compliance with ASTM/ISO standards.

Premium Quality Double End Bolts for Reliable Support Solutions

Name: Premium Quality Double End Bolts for Reliable Support Solutions
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2192508075

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

US$1.00

10-999 Pieces

US$0.30

1,000-1,999 Pieces

US$0.20

2,000+ Pieces

Product profile

Customization

Available

Material

Carbon Steel

Connection

Common Bolt

Head Style

Grade

Finish

Zinc

Standards

GB, DIN, ISO, JIS

Finished

Passivation, Zinc Plating, Black, Plain

Size

M5X10mm-M100X3000mm

Productioncapacity

300tons/Month

Sample

Avaliable

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 GB, DIN, ISO, and JIS standards for global compliance.

Wide Size Range: Sizes available from M5x10mm to M100x3000mm for diverse applications.

Flexible Finishes: Options include passivation, zinc plating, black, plain, HDG, and more.

ISO Certified Quality: Manufacturer holds ISO certification with rigorous two-stage QA protocols.

Free Sample Availability: Free standard samples provided; cost refundable upon bulk order.

High Production Capacity: Monthly production capacity of 300 tons ensures timely delivery.

Full Customization: Offers full customization from samples or designs for specific needs.

Global Market Experience: Serves clients in North America, Europe, Asia, and other global regions.

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: ≤4.49h

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 bolts?

Materials include Carbon Steel, A2/A4/314/316 Stainless Steel, Low Carbon Steel, Medium Carbon Steel, and Alloy Steel.

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, full advance payment is recommended. LC at sight is also negotiable for bulk orders.

Q:How long is the delivery time?

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

Q:Can I get a sample before placing an order?

Yes, free samples (1-3 pcs) are available. Express shipping costs are covered by the customer's account. Sample costs are refundable upon bulk order confirmation.