Do you have quality certifications?

Yes, we are an ISO-certified manufacturer with a rigorous two-stage quality assurance protocol including pre-production sampling and full batch inspection.

What is the minimum order quantity?

The minimum order quantity is 1 Kg.

High-Strength Hex Head Self-Drilling Screws for Steel Structures

Name: High-Strength Hex Head Self-Drilling Screws for Steel Structures
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2194950605

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

Flexible Customization: Full customization available from samples or designs with flexible options.

Multiple Material Options: Available in Carbon Steel and Stainless Steel to meet diverse needs.

Comprehensive Surface Finishes: Options include Zinc Plated, Hot Dip Galvanized, Dacromet, Nickel Plated, and Black Oxide.

Wide Standard Compliance: Meets DIN, GB, ANSI, BSW, JIS, GOST, and ISO standards.

High Strength Grades: Available in 8.8, 10.9, and 12.9 grades for high-strength applications.

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

ISO Certified Manufacturer: ISO-certified facility with rigorous two-stage quality assurance protocols.

Global Market Experience: Serving clients across North America, Europe, Asia, and other global regions since 2009.

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.

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 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. Acceptable instruments include SWIFT transfer, LC at sight, PayPal, and Western Union.

Q:What is the delivery time?

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

Q:What customization options are available?

We offer flexible customization including full customization from samples or designs. Standards, finishes, and specifications can be tailored to customer requirements.

Q:What materials are used for these screws?

The screws are manufactured from Carbon Steel and Stainless Steel, available in various grades including 8.8, 10.9, and 12.9.