Do you provide free samples?

Yes, free standard samples (1-3 pcs) are available. Express shipping costs are covered by the customer, but sample cost is refundable upon bulk order.

What are your payment terms?

Standard terms are 30% T/T deposit and 70% balance against B/L copy. For orders under $1,000, full advance payment is recommended. We also accept LC, D/P, PayPal, and Western Union.

Is your company ISO certified?

Yes, we are an ISO-certified manufacturer established in 2009, with rigorous quality assurance protocols including torque testing and salt spray analysis.

Heavy-Duty Hook Bolts for Reliable Structural Support Systems

Name: Heavy-Duty Hook Bolts for Reliable Structural Support Systems
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2200620305

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

US$0.01-1.00

10,000 Pieces

Product profile

Customization

Available

Material

Steel

Type

Closed Hook

Groove

Connection

Common Bolt

Head Style

Countersunk Head

Standard

DIN, GB, ANSI, BSW, JIS, GOST

Grade

Standards

GB, DIN, ISO, JIS

Product Name

Pigtail Bolt

Size

M5-M14

Surface Treatment

Hot DIP Galvanized

Delivery Time

15-30

Transport Package

Cartons & Pallets or According to Customer''s Requ

Specification

M5-M14

Trademark

SOKUN

Origin

Zhejiang

HS Code

7318150000

Production Capacity

100000000

Key features

Wide Material Selection: Available in A2/A4 314 316 stainless steel, low carbon steel, medium carbon steel, and alloy steel.

Flexible Customization: Offers full customization from samples or designs, including standards, sizes, and surface treatments.

Multiple Surface Treatments: Options include passivation, zinc plating, black, plain, HDG, yellow zinc plated, chromed, and nickel plated.

Rigorous Quality Assurance: Two-stage protocol with pre-production sampling and full batch inspection including torque and salt spray tests.

ISO Certified Manufacturer: Established in 2009, ISO-certified with comprehensive R&D and vertically integrated production facilities.

Free Sample Availability: Free standard samples (1-3 pcs) available with express shipping via DHL/UPS/FedEx at customer's account.

Low MOQ Requirement: Minimum Order Quantity is only 1 Kg, allowing for flexible ordering for small to large batches.

Global Shipping Support: Located in Ningbo/Shanghai with flexible trade terms including FOB, CIF, CFR, and EXW.

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.