How long is the delivery time?

Standard delivery time is normally 15-30 days.

Are free samples available?

Yes, 1-3 free standard samples are available. Sample costs are refundable upon bulk order confirmation.

What certifications does the manufacturer hold?

The manufacturer is ISO certified and provides SGS certificates.

Heavy-Duty Self-Drilling Hex Head Screws for Steel Structures

Name: Heavy-Duty Self-Drilling Hex Head Screws for Steel Structures
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2188186295

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

Carbon Steel, Stainless Steel

Type

Hexagon Head With Flange

Model NO.

DIN 7504 (L)

Groove

Manufacturing According to Standards or Requiremen

Connection

Common Bolt

Head Style

Hexagon Head with Flange

Standard

DIN, GB, ANSI, BSW, JIS, GOST

Grade

8.8/10.9/12.9

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

Customizable Standards: Supports GB, DIN, ISO, JIS standards to meet specific project requirements.

Flexible Finishing Options: Available in Passivation, Zinc Plating, Black, Plain, and Yellow finishes.

ISO Certified Quality: Manufacturer holds ISO certification with rigorous two-stage quality assurance.

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

Low Minimum Order: Minimum Order Quantity is just 1 Kg, suitable for small batches.

Fast Delivery Time: Standard delivery within 15-30 days for most orders.

Flexible Customization: Offers full customization from samples or designs for unique needs.

Global Shipping Support: Exports to North America, Europe, Asia, and more via Shanghai/Ningbo ports.

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: ≤4.46h

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 materials are available for these screws?

The screws are available in Carbon Steel and Stainless Steel.

Q:What standards do the screws comply with?

They comply with DIN, GB, ANSI, BSW, JIS, and GOST standards.

Q:Can the product be customized?

Yes, we offer flexible customization including standards, finishes, and full customization from samples or designs.

Q:What is the minimum order quantity?

The minimum order quantity is 1 Kg.

Q:What are the payment terms?

Standard terms are 30% T/T deposit with 70% balance against B/L copy. For orders under $1,000, full advance payment is recommended. LC at sight is also negotiable.