What are the payment terms?

We accept T/T, L/C for general orders, and PayPal or Western Union for small or sample orders.

What is the packing method?

15-25 kg per carton, 36-48 cartons per pallet. We can customize cartons with customer logos.

Can we print our own logo?

Yes, we can print your logo on cartons according to your request.

Are there discounts for large orders?

Yes, we offer reasonable discounts for big orders, old customers, and frequent buyers.

What is the daily production capacity?

We can produce nearly 200,000 to 300,000 pieces per day.

High Hardness Okl-003 Stainless Steel Hex Flange Bolt for Construction Machinery

Name: High Hardness Okl-003 Stainless Steel Hex Flange Bolt for Construction Machinery
Brand: Ningbo Oukailuo Hardware Co., Ltd.
SKU: 2266649415

Zhejiang, ChinaNingbo Oukailuo Hardware Co., Ltd.

US$0.005-5.00

50,000 Pieces

Product specifications

Specification

Sample price:US$0.50/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel, Stainless Steel

Type

Hexagon Head With Flange

Model NO.

OKL-003

Head Style

Hexagonal

Standard

DIN, ANSI, GB, JIS, BSW, GOST

Grade

4.8

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Zinc-Plated, Galvanized, Hot-DIP Galvanized

Product Name

Hex Head Flange Bolt with Serrations

Keywords

Flange Bolt

Standards

ANSI B18.2.3.5m, DIN 6921

Strength Grade

Grade 8.8 / Customized

Size

M6, M8, M10, M12, M14, M16

Thread Type

Metric Thread, Full or Partial Thread

Design Feature

Integrated Serrated Flange, Washer-Free Anti-Loose

Applications

Machinery, Equipment, Vehicles, Construction, Rail

Transport Package

Standard Packaging or Customized

Specification

Standard Specifications or Customized

Trademark

OUKAILUO

Origin

Zhejiang, China

HS Code

7318150000

Production Capacity

40000000PCS/Year

Key features

Integrated Serrated Flange: Combines bolt and washer functions to reduce assembly time and component costs.

Anti-Loosening Protection: 360-degree serration pattern prevents rotation and self-loosening under vibration.

Corrosion Resistance: Zinc electroplating provides 240+ hours of salt spray resistance for indoor/outdoor use.

High Strength Grade: Manufactured from Grade 8.8 carbon steel for reliable fastening in demanding applications.

Global Standards Compliance: Fully compliant with ANSI B18.2.3.5M and DIN 6921 international specifications.

Customizable Strength: Strength grade is Grade 8.8 / Customized to meet specific project requirements.

Wide Size Range: Available in metric sizes M6 to M16 with full or partial thread options.

OEM/ODM Service: Supports customization from samples, including logo printing and carton design.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceODM Services

Ningbo Oukailuo Hardware Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples CertifiedExport Year: 14 Years CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤2.72h

AI-Powered supplier vetting

SummaryThe supplier is a fastener manufacturer with capabilities spanning R&D, design, production, quality control, and after-sales service. It reports recent new-product development, ODM services, OEM experience with well-known brands, sample-based customization, five production lines, and approximately one-month lead times in both peak and off-peak periods. However, the available evidence also identifies important limitations: no supplier-management certification is listed, service procedures lack records, no overseas warehouse, showroom, agent, branch, or offline trade-show participation is reported, and no factory environmental impact assessment or regular fire drills were reported. Financial information is represented only by year labels, without substantive financial metrics, so credibility cannot be determined from the provided slices.

Supplier typeThe supplier describes itself as a fastener producer covering R&D, design, manufacturing, quality control, and after-sales service. Its reported five production lines and OEM/ODM activities support classification as a manufacturer rather than only a trading or service intermediary.

CertificationsThe supplier-management certification field is explicitly recorded as “NIL,” and no other certification is identified in the provided evidence. This is a stated absence of certification information rather than merely incomplete documentation.

R&D capabilityThe supplier reports new products during the past year, provides ODM services, and has two years of R&D engineer experience in the supplied data. These points support active product development, although the reported absence of an available SDK limits evidence of software or integration-oriented R&D capability.

Production capacityThe supplier reports five production lines, fastener-production experience, CNC machining with micron-level precision, and one-month lead times in both peak and off-peak seasons. Its Ningbo location and access to Ningbo and Shanghai ports further support logistics, although production capacity volume is not quantified.

Customization capabilityThe supplier explicitly offers customization from samples, ODM services, and custom-machined parts using CNC lathes. This provides direct evidence of both sample-based and design-oriented customization capability.

Client casesThe supplier states that it provides OEM services for well-known brands, which is direct evidence of customer experience with recognized-brand projects. However, no customer names, project details, or verifiable case records are provided, so the breadth and quality of its customer portfolio cannot be fully evaluated.