What certifications do you have?

We are an ISO-certified manufacturer and provide ISO9001/SGS certificates.

What types of fasteners do you manufacture?

We manufacture hex bolts, machine screws, locking nuts, flat washers, threaded rods, blind rivets, retaining clips, and CNC-machined components.

Heavy-Duty Hexagon Head Drilling Screws for Construction Projects

Name: Heavy-Duty Hexagon Head Drilling Screws for Construction Projects
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2188222995

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 (K)

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 based on customer requirements.

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

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

Free Sample Availability: Free samples (1-3 pcs) available; cost refundable upon bulk order confirmation.

Flexible Customization: Offers full customization from samples or designs for fasteners and parts.

Global Market Reach: Serves clients in North America, Europe, Australia, Asia, and the Middle East.

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: ≤4.44h

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 used for these screws?

The screws are made from Carbon Steel and Stainless Steel.

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 Bill of Lading copy. For orders under $1,000 USD, full advance payment is recommended. Other options include LC at sight, D/P, PayPal, and Western Union.

Q:How long is the delivery time?

Normally, delivery takes 30-40 days. Peak season lead time is one month, while off-season is also one month.

Q:Can you provide free samples?

Yes, free samples (1-3 pcs of standard specification) are available. Express shipping costs are covered by the customer's account. The sample cost is refundable upon bulk order confirmation.