How long is the delivery time?

Standard delivery is 30-40 days. Custom samples can be prepared within 15 working days.

Is customization available for standards and sizes?

Yes, we support customization from samples, designs, or full customization, including standards like GB, DIN, ISO, and JIS.

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 tests.

Heavy-Duty Large Hexagon Nuts for Steel Structures - GB T 1229

Name: Heavy-Duty Large Hexagon Nuts for Steel Structures - GB T 1229
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2238903855

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

US$0.01-0.10

10,000 Pieces

Product profile

Customization

Available

Material

Carbon Steel, Stainless Steel,Brass

Type

Hex Structural Nuts

Model NO.

GB T 1229 - 1991

Connection

Head Style

Standard

DIN, ANSI, GB, JIS, GOST, BSW

Grade

Standards

GB, DIN, ISO, JIS

Finished

Passivation, Zinc Plating, Black, Plainhdg, Yellow

Certificate

ISO9001/SGS

Selling Units

Building, Industry, Machinery

Package

Customer'require

Delivery Time

15-30

Transport Package

Cartons & Pallets or According to Customer''s Requ

Specification

Trademark

SOKUN

Origin

Zhejiang

HS Code

7318150000

Production Capacity

100000000

Key features

Flexible Customization: Customization from samples, designs, or full customization available.

ISO Certified Quality: ISO-certified manufacturer with rigorous two-stage quality assurance protocols.

Wide Material Options: Available in Carbon Steel, Stainless Steel, Brass, Aluminum, and Titanium.

Multiple Finishes: Options include Zinc Plated, Hot Dip Galvanized, Dacromet, and Black Oxide.

Free Sample Service: Free standard samples available; cost refundable upon bulk order confirmation.

Global Shipping: Ships from Ningbo/Shanghai ports with flexible Incoterms (FOB, CIF, etc.).

Low MOQ: Minimum Order Quantity is only 1 Kg, suitable for small batch testing.

Fast Delivery: Standard delivery time is 30-40 days; custom samples within 15 working days.

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: ≤4.96h

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.