What is the lead time for production?

The lead time is 20 days for samples and 30 days for production.

What certifications do you have?

We have ISO9001, RoHS, and GS certifications, and our parts pass TUV/GS tests and CE certification.

What materials can you process?

We process aluminum, zinc, steel, stainless steel, brass, copper, POM, and other materials according to customer specifications.

High-Strength Black Oxidized Extended Hexagonal Nuts with Female Threading

Name: High-Strength Black Oxidized Extended Hexagonal Nuts with Female Threading
Brand: Nanjing Best International Co., Ltd.
SKU: 710100922

Jiangsu, ChinaNanjing Best International Co., Ltd.

US$0.85

1,000 Pieces

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Yes

Warranty

1 Year

Model NO.

customized

Condition

New

Certification

RoHS, GS, ISO9001

Standard

DIN, ASTM, GOST, GB, JIS, ANSI

Customized

Material

Alloy

Application

Metal Recycling Machine, Metal Cutting Machine, Metal Straightening Machinery, Metal Spinning Machinery, Metal Processing Machinery Parts, Metal forging Machinery, Metal Engraving Machinery, Metal Drawing Machinery, Metal Coating Machinery, Metal Casting Machinery

Material Type

Carbon Steel, Alloy Steel, Stainless Steel

Machining Type

Turning

Free Samples

Available

Samples Leadtime

20days

Transport Package

Carton Package and Wooden Case Package

Specification

Customized

Trademark

NBI

Origin

Jiangsu

HS Code

7326901990

Production Capacity

500000PCS Per Year

Key features

15 Years Experience: Over 15 years of production experience in industrial components and CNC machining.

Customized Service: OEM/ODM welcome; supports customer samples, drawings, and new project development.

Wide Material Range: Processes aluminum, zinc, steel, stainless steel, brass, copper, POM, and more.

High Precision Tolerance: Profile dimension +/-0.02mm, hole diameter +/-0.005mm for precise machining.

Comprehensive Certifications: ISO9001, RoHS, GS certified; parts pass TUV/GS test and CE certification.

Free Samples Available: Free samples provided for customer reference (freight cost applies).

Quality Assurance: 1-year quality guarantee; provides material, mechanical, and dimensional reports.

Multiple Machining Processes: Expertise in turning, milling, grinding, drilling, forging, casting, and stamping.

Company profile

Nanjing Best International Co., Ltd.

Jiangsu, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2007-05-01 CertifiedNearest Port: Shanghai PortAverage Response Time: ≤0.01h CertifiedTerms of Payment: LC, T/T, PayPal, etc. CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, EXW

AI-Powered supplier vetting

SummaryNanjing Best International Co., Ltd. is a China-based limited trading company that is also identified as a manufacturer/factory. It supplies die casting, machining, casting, stamping, forging, pipe and fitting products, and operates a manufacturing facility in Changzhou with machining, CNC machining, die-casting and stamping capabilities. The supplier reports ISO 9001/ISO 9000 quality-system certification, with some products having TUV/GS testing and CE certification. It has exported since 2007 and reports that 90% of sales are exports, with self-operated import and export rights. Evidence supports established international trading and production capabilities, but after-sales service, financial credibility, innovation strength, and verified customer performance cannot be fully assessed from the available information.

Supplier typeThe supplier is described as a trading company and as a trading company/manufacturer-factory. It also reports owning a manufacturing facility in Changzhou, indicating a hybrid trading and manufacturing model rather than a purely intermediary structure.

CertificationsThe supplier reports ISO 9000 control-system certification, ISO 9001 certification, and that some offered products have passed TUV/GS testing and received CE certification. The slices do not specify the exact scope or validity period of each certification, but they provide explicit evidence of certification holdings.

Production capacityThe Changzhou facility is reported to have machining, CNC machining-center, die-casting, and stamping production lines, while another record lists five production lines, 6–10 quality-control staff, and 6–10 years of R&D engineering experience. The supplier’s stated capabilities cover several relevant manufacturing processes, supporting a positive production-capability assessment.

Customization capabilityThe supplier covers machining, casting, stamping, forging, pipe and fittings, and related products, and states that it can perform process-control work and SPC according to customer requirements. This directly supports process and product customization capability for industrial components.