Do you provide free samples?

Yes, we provide 1-3 free standard specification samples. The sample cost is refundable upon bulk order confirmation.

What quality assurance measures do you have?

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

What finishes are available?

Available finishes include Black, Zinc Plated, and Hot Dip Galvanized.

Industrial-Grade U Bolts for Maximum Performance and Durability

Name: Industrial-Grade U Bolts for Maximum Performance and Durability
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2200547005

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 full customization from samples or designs, including length (10mm-600mm) and finish.

High-Grade Materials: Available in Stainless Steel, Low/Medium Carbon Steel, and Alloy Steel with grades 4.8 to 10.9.

Rigorous Quality Control: Two-stage QA: Pre-production sampling and full batch inspection including torque and salt spray tests.

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

Global Compliance: Products comply with DIN, ANSI, GB, JIS, BSW, GOST, ASTM, and ISO standards.

Fast Delivery: Standard delivery within 30-40 days; customized samples ready within 15 working days.

Versatile Finishes: Options include Black, Zinc Plated, and Hot Dip Galvanized for enhanced corrosion resistance.

Established Manufacturer: ISO-certified factory with 15 years export experience and vertically integrated production.

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: ≤6.86h

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.