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Premium Durable Black Carbon Steel Hexagon Nut Fasteners

Name: Premium Durable Black Carbon Steel Hexagon Nut Fasteners
Brand: Dongguan Xunhe Mould Parts Co., Ltd
SKU: 2268534405

Guangdong, ChinaDongguan Xunhe Mould Parts Co., Ltd

US$0.18

1,000-1,999 Pieces

US$0.17

2,000-4,999 Pieces

US$0.16

5,000+ Pieces

Product profile

Application

Auto and Motorcycle Accessory, Hardware Tool, Machinery Accessory

Standard

GB, China GB Code

Surface Treatment

Polishing

Model NO.

ZZ28

Production Type

Mass Production

Machining Method

CNC Machining

Material

Nylon, Steel, Alloy

Heavy Machinery

Excavators, Cranes, Presses

Automotive

Engine, Chassis, Suspension Systems

Mold Industry

Large Mold Assemblies

Steel Structures

Bridges, Industrial Buildings (High-Stress Joints)

Scope of Application

Die Components

Transport Package

Company Profile

Specification

ZZ28-16

Trademark

Origin

Dongguan, Guangdong, China

Production Capacity

500000

Key features

Grade 12.9 High Strength: Nominal tensile strength of 1200 MPa with yield-to-tensile ratio of 0.9 for extreme load bearing.

Durable Black Carbon Steel: Made from high-strength alloy steel (35CrMo, 42CrMo) with black oxide or phosphating finish.

Heavy-Duty Hex Design: Larger wrench flats and increased height for greater load-bearing area and vibration resistance.

Precision Thread Tolerance: Internal threads machined to 6g tolerance ensuring perfect compatibility with Grade 12.9 bolts.

Wide Material Selection: Available in Carbon steel, Stainless steel, Alloy steel, Copper, Aluminum, Titanium, and more.

Customization Support: Full customization, design-based, and sample-based options available for OEM/ODM orders.

Fast Sample Availability: Free samples available within 7 days if existing tools are available for production.

Comprehensive Warranty: Standard 6-month warranty with optional extended coverage up to 12 months for peace of mind.

Company profile

Dongguan Xunhe Mould Parts Co., LtdGuangdong, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 10years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤1.56h

AI-Powered supplier vetting

SummaryDongguan Xunhe Mould Parts Co., Ltd is identified as a China-based private manufacturer/factory in Guangdong, while another record classifies the supplier as a trading company. Its stated products include waterway quick connectors, mould accessories, metal parts processing, and injection-moulding peripheral components. The supplier reports professional technical R&D capability, 3D software design, customization from samples or designs, full customization, recent new-product development, ODM, and OEM services. However, raw-material traceability status is unknown, no SDK is available, and the provided service-capability assessment shows no written procedures or records for supplier approval, corrective actions, or complaint handling. SGS audit information is present for a report valid from August 21, 2025 to August 20, 2026, but the evaluation result is recorded as 0 without interpretation. Financial credibility cannot be established from the provided records.

After-Sales capabilityThe company description mentions after-sales service, but the service-capability assessment states that there are no written procedures or followed records for service assessment, approved suppliers, corrective and preventive actions, or effective complaint handling. This explicitly indicates a deficiency in documented after-sales and service-management controls.

R&D capabilityThe supplier is identified as a professional technical supplier with R&D capability, 3D software design services, new-product development during the past year, ODM capability, and OEM service for well-known brands. Its stated emphasis on innovation supports a positive assessment, although no quantitative R&D evidence is provided.

Production capacityThe supplier is described as engaged in R&D, production, and sales of mould quick connectors, hydraulic and pneumatic quick connectors, injection-machine diverters, water-collecting blocks, precision mould parts, and related components. It is also identified as a manufacturer/factory with a defined product scope, which explicitly supports production capability.

Customization capabilityThe supplier offers customization from samples, minor customization, flexible customization, customization from designs, and full customization. It also provides 3D software design services, indicating support for both design-based and sample-based customized products.