What is the minimum order quantity?

The minimum order quantity is 1 Kg.

What quality assurance systems do you have?

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

What are the available finishes?

Finishes include passivation, zinc plating, black, plain, HDG, yellow zinc plated, chromed, and nickel plated.

Premium High-Strength Steel Double End Stud Bolts with Nuts for Heavy-Duty Applications

Name: Premium High-Strength Steel Double End Stud Bolts with Nuts for Heavy-Duty Applications
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2195844825

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

Model NO.

Head Style

Standard

DIN

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

Service

Customized OEM ODM

Transport Package

Cartons & Pallets or According to Customer''s Requ

Specification

Trademark

SOKUN

Origin

Zhejiang

HS Code

7318150000

Production Capacity

100000000

Key features

Wide Size Range: Available sizes from M5x10mm to M100x3000mm to meet diverse requirements.

Multiple Standards: Compliant with GB, DIN, ISO, and JIS international standards.

Diverse Finishes: Options include passivation, zinc plating, black, plain, HDG, and nickel plating.

Material Variety: Offered in A2, A4, 314, 316 stainless steel, low carbon, medium carbon, and alloy steel.

Customization Service: Flexible OEM/ODM services available with customization from samples or designs.

Free Sample Availability: Free standard samples (1-3 pcs) available; cost refundable upon bulk order.

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

ISO Certified Manufacturer: Established in 2009 with rigorous two-stage quality assurance protocols.

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 delivery time?

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

Q:Can you provide samples?

Yes, free samples (1-3 pcs) of standard specifications are available. Customized samples take 15 working days. 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. LC at sight is negotiable for bulk orders.

Q:What materials are available?

We offer A2, A4, 314, 316 stainless steel, low carbon steel, medium carbon steel, and alloy steel.

Q:Do you offer customization services?

Yes, we provide flexible OEM/ODM services including customization from samples and designs.