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.

What materials are used for these U bolts?

Our U bolts are made from stainless steel, low carbon steel, medium carbon steel, or alloy steel.

What finishes are available?

Available finishes include black, zinc plated, and hot dip galvanized.

Premium U Bolts for Engineering and Structural Applications

Name: Premium U Bolts for Engineering and Structural Applications
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2200546285

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, Steel

Type

U-Bolts

Connection

Common Bolt

Head Style

Standard

DIN, ANSI, GB, JIS, BSW, GOST

Grade

4.8/6.8/8.8/10.9

Finish

Zinc, Plain

Standards

DIN3570, Ifi-136

Finished

Black/Zinc Plated/Hot DIP Galvanized

Length

10mm-600mm

Selling Units

Building, Industry, Machinery

Package

Cartons&Pallets or According to Customer's Require

Size

M4-M36

Transport Package

Cartons & Pallets or According to Customer''s Requ

Specification

M4-M36

Trademark

SOKUN

Origin

Zhejiang

HS Code

7318150000

Production Capacity

100000000

Key features

Flexible Customization: Supports customization from samples, designs, and full customization for standards, finishes, and sizes.

ISO Certified Quality: Rigorous two-stage QA including dimensional verification, torque testing, and salt spray analysis.

Free Sample Availability: 1-3 free standard samples available; sample cost refundable upon bulk order confirmation.

Wide Material Range: Available in stainless steel, low carbon steel, medium carbon steel, and alloy steel.

Multiple Finish Options: Offers black, zinc plated, and hot dip galvanized finishes to meet diverse corrosion requirements.

Global Shipping Support: Fast delivery via DHL/UPS/FedEx with express options for urgent sample requests.

Low MOQ Entry: Minimum Order Quantity is just 1 Kg, allowing for flexible trial orders.

Comprehensive Standards: Products comply with DIN, ANSI, GB, JIS, BSW, and GOST international standards.

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: ≤4.45h

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:Can you provide free samples?

Yes, 1-3 pieces of standard specification samples are available for free. The 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 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:What is the delivery time for bulk orders?

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

Q:Is customization available?

Yes, we offer flexible customization including customization from samples, designs, and full customization for standards, finishes, and sizes.