What is the minimum order quantity?

The Minimum Order Quantity is 1 Kg.

What quality assurance protocols do you follow?

We implement a rigorous two-stage 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 are the available finishes?

Available finishes include Zinc Plated, Hot Dip Galvanized Steel, Dacromet, Nickel Plated, Black Oxide, and Plain.

Industrial-Grade Heavy-Duty L Bolts for Secure Construction Projects

Name: Industrial-Grade Heavy-Duty L Bolts for Secure Construction Projects
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2200567805

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

Foundation Bolts

Connection

Common Bolt

Head Style

Standard

DIN, ANSI, GB, JIS, BSW, GOST

Grade

4.8/ 8.8/ 10.9/ 12.9 Ect

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Zinc, Plain

Standards

DIN 529

Finished

Passivation, Zinc Plating, Black, Plainhdg, Yellow

Certificate

ASME B18.3, ISO 10642

Selling Units

Building, Industry, Machinery

Package

Customer'require

Delivery Time

Normally in 30-40 Days

Transport Package

Cartons & Pallets or According to Customer''s Requ

Specification

Trademark

SOKUN

Origin

Zhejiang

HS Code

7318150000

Production Capacity

100000000

Key features

Diverse Material Options: Available in Carbon Steel and Stainless Steel to suit various environmental conditions.

Wide Standard Compliance: Meets DIN, ANSI, GB, JIS, BSW, and GOST standards for global compatibility.

Flexible Customization: Offers full customization from samples and designs, including specific finishes.

Multiple Finish Options: Includes Zinc Plated, Hot Dip Galvanized, Dacromet, Nickel Plated, and Black Oxide.

ISO Certified Manufacturer: Established in 2009 with rigorous two-stage quality assurance and dimensional verification.

Fast Sample Availability: Free standard samples (1-3 pcs) available with express shipping options.

Competitive Payment Terms: Flexible terms including 30% deposit, LC at sight, and various international instruments.

Global Market Experience: Serving clients across North America, Europe, Asia, and the Middle East for 15 years.

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: ≤4.98h

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:Can you provide samples?

Free samples (1-3 pcs standard specification) are available. Express shipping via DHL/UPS/FedEx is supported. Customized samples can be prototyped within 15 working days. Sample costs are 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. Acceptable instruments include SWIFT transfer, LC at sight, D/P, PayPal, and Western Union.

Q:What is the delivery time?

Normally in 30-40 days. During peak season, lead time is one month to three months. Off-season lead time is one month.

Q:What materials are used for these bolts?

The bolts are manufactured from Carbon Steel and Stainless Steel. Grades available include 4.8, 8.8, 10.9, and 12.9.

Q:Do you offer customization services?

Yes, we offer flexible customization including full customization from samples and designs. We can produce according to specific customer requirements for standards and finishes.