Lifeng M3 M3 5 M4 High-Strength Black Hexagon Socket Screws

Name: Lifeng M3 M3 5 M4 High-Strength Black Hexagon Socket Screws
Brand: Zhongshan East Area Lifeng Hardware Household Electric Appliance Factory
SKU: 2165990312

Guangdong, ChinaZhongshan East Area Lifeng Hardware Household Electric Appliance Factory

US$0.03

10,000-49,999 Pieces

US$0.02

50,000-99,999 Pieces

US$0.01

100,000+ Pieces

Sample price:US$0.10/piece.Request sample

Product profile

Customization

Available

Material

High Strength Steel

Type

Hexagon Head

Model NO.

Black Hex Socket Screw

Groove

Hexagon

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, GB, ANSI, BSW, JIS, GOST

Grade

8.8

Transport Package

Paper Box

Specification

M3 M3.5 M4 M5 M6

Trademark

Lifeng

Origin

China

HS Code

731815909

Production Capacity

1000 Tons/Month

Key features

Diverse Material Standards: Complies with DIN, GB, ANSI, BSW, JIS, GOST, and ISO standards.

Customizable Dimensions: Diameter M3-M10 and Length 4mm-100mm available per customer requirements.

Multiple Surface Finishes: Options include Nickel Plated, Black Nickel Plated, and White Zinc Plated.

OEM and ODM Services: Full customization, minor customization, and flexible options from samples or designs.

Professional Quality Control: Each item inspected from production to packaging by a dedicated QC team.

Competitive Pricing: Direct manufacturer with 9 years experience ensuring cost-effective solutions.

Fast Delivery for Stock: Stock items ship within 2-5 days after payment confirmation.

Custom Project Support: Custom items delivered in 10-15 days with deposit deductible from final order.

Company profile

High Repeat Buyers ChoiceOEM ServicesQuality AssuranceR&D Capabilities

Zhongshan East Area Lifeng Hardware Household Electric Appliance Factory

Guangdong, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 0 year CertifiedNearest Port: Shenzhen portAverage Response Time: ≤1.95h

AI-Powered supplier vetting

SummaryZhongshan Lifeng Hardware Manufacturing Co., Ltd. is identified as a professional fastener manufacturer and technical supplier with in-house R&D, production, testing, and customization capabilities. It offers sample-based, design-based, full, minor, and flexible customization, supported by solution design, prototyping, and mass production services. Manufacturing equipment includes cold heading, thread rolling, drilling, turning, grinding, and screw selection machines. Quality assurance is stated, but finished-product inspection is described as random or performed by packing staff, with one QA/QC inspector. The supplier reports no 3D software design, SDK, written service procedures, complaint-handling procedures, corrective-action records, approved supplier list, environmental impact assessment, or regular fire drills. Export-related capability is indicated by a stated 90% export-sales share, although the export-start field is recorded as 0 year. No certifications or customer cases are provided.

Supplier typeThe supplier is explicitly described as a professional technical supplier and as a modern enterprise specializing in fastener R&D, production, sales, and service. Its company type is recorded as “Combined,” supporting classification as a manufacturing and service-oriented supplier.

After-Sales capabilityThe supplier describes end-to-end services including solution design, prototyping, and mass production, and accepts defined service terms and payment terms. However, it has no written service procedures or records for complaint handling, corrective and preventive actions, or supplier-service assessment, which indicates a documented after-sales management deficiency.

R&D capabilityThe supplier is identified as having professional technical R&D capability and states that technological innovation, process optimization, product precision, and durability are priorities. It also provides solution design and prototyping, although it does not provide 3D software design services.

Production capacityThe supplier reports mass-production capability and operates equipment including cold heading, thread rolling, drilling, lathes, grinders, and screw selection machines. It also states peak- and off-season lead times within 15 working days, but the annual productivity entry is incomplete, so capacity volume cannot be fully assessed.

Customization capabilityCustomization is explicitly available from samples and designs, including full, minor, and flexible customization. The supplier also describes customized fastening solutions and supports solution design, sample prototyping, and mass production.