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Long Hook Extension Spring with Extended Hook Design and High-Quality Stainless Steel Material for Precision CNC Manufacturing
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Long Hook Extension Spring with Extended Hook Design and High-Quality Stainless Steel Material for Precision CNC Manufacturing
  • name
  • name
  • name

Long Hook Extension Spring with Extended Hook Design and High-Quality Stainless Steel Material for Precision CNC Manufacturing

Detail Information
Product Description
Detail Information
Place of Origin
CN
Brand Name
METS
Custom Design:
OEM / ODM Supported
Shipping Terms:
By Sea/air/train
Color Marking:
Red / Blue / Custom
Productname:
Spring
Struceture:
Compression Spring
Accepted File Formats:
STEP, IGES, DXF, DWG, PDF
Product Description
Long Hook Extension Spring | Stainless Steel Industrial Spring
Long Hook Extension Spring is a precision-engineered tension spring designed to provide reliable pulling force, controlled movement, and stable mechanical tension in various industrial applications. Featuring extended hook ends, this type of extension spring allows flexible installation, improved connection distance, and secure attachment between mechanical components.
Manufactured from high-quality spring materials such as SUS304, SUS316 stainless steel, carbon steel, and alloy spring steel, our Stainless Steel Long Hook Extension Springs offer excellent elasticity, corrosion resistance, fatigue resistance, and long service life. The extended hook design provides additional installation flexibility, making it suitable for applications requiring longer connection points or special assembly structures.
Using advanced CNC spring forming equipment and strict manufacturing processes, each spring is produced with accurate dimensions, consistent spring force, and reliable performance. The coil body is designed to maintain stable tension during repeated stretching cycles, helping improve equipment efficiency and operational reliability.
Long Hook Extension Springs are widely used in industrial machinery, automation equipment, automotive components, electrical devices, agricultural machinery, medical equipment, and mechanical assemblies. Different wire diameters, coil diameters, hook shapes, spring lengths, and tension forces can be customized according to customer drawings or application requirements.
As a professional custom spring manufacturer, we provide complete OEM and ODM Long Hook Extension Spring solutions, including design support, prototype development, mass production, quality inspection, and global delivery services.
Long Hook Extension Spring | Stainless Steel Industrial Spring is an ideal choice for manufacturers requiring durable, precise, and high-performance tension spring components.
Stainless Steel Long Hook Extension Spring product photo
Features
1. Extended Hook Design for Flexible Installation
  • Long hook structure provides additional mounting distance
  • Suitable for special mechanical connection requirements
  • Easy installation and reliable attachment
2. High-Quality Stainless Steel Material
Available materials:
  • SUS304 stainless steel
  • SUS316 stainless steel
  • SUS301 stainless steel
  • Carbon steel
  • Alloy spring steel
Advantages:
  • Excellent corrosion resistance
  • High tensile strength
  • Long fatigue life
3. Stable Tension Performance
  • Provides consistent pulling force during extension
  • Maintains reliable elasticity after repeated operation
  • Suitable for high-cycle mechanical applications
4. Precision CNC Manufacturing
  • Produced with advanced automatic spring machines
  • Accurate control of wire diameter, coil diameter, and spring length
  • Suitable for prototype and mass production
5. Excellent Fatigue Resistance
  • Designed for repeated stretching and releasing cycles
  • Maintains stable mechanical performance
  • Reduces replacement frequency
6. Wide Industrial Compatibility
Suitable for:
  • Industrial machinery
  • Automation equipment
  • Automotive systems
  • Electrical products
  • Mechanical assemblies
7. Custom OEM Capability
  • Customized spring dimensions and load requirements
  • Supports customer drawings and samples
  • Available for small and large production volumes
Technical Parameters
Parameter Specification
Product Name Long Hook Extension Spring
Product Type Tension Spring / Extension Spring
Material Stainless Steel, Carbon Steel, Alloy Steel
Material Grades SUS304, SUS316, SUS301, 65Mn, SWC
Wire Diameter 0.1mm - 60mm (Customized)
Spring Outer Diameter Customized
Free Length Customized
Hook Type Long Hook / Extended Hook / Custom Hook
Hook Length Customized
Number of Coils Customized
Spring Force Customized According to Requirement
Working Stroke Customized
Surface Treatment Polishing, Electroplating, Passivation, Coating
Operating Temperature -40℃ to +250℃ (Material Dependent)
Manufacturing Process CNC Spring Forming, Heat Treatment, Surface Treatment
Accuracy High Precision Dimensional Control
Application Industrial Equipment, Automotive, Machinery
Production Capacity Prototype to Mass Production
Quality Standard ISO Quality Control System
Applications
1. Industrial Machinery
Long Hook Extension Springs are widely used in industrial equipment to provide pulling force, return force, and tension control. The long hook structure allows easier installation in complex mechanical systems.
Applications include:
  • Manufacturing machines
  • Assembly equipment
  • Packaging machinery
  • Production line equipment
2. Automation Equipment
In automated systems, these springs provide reliable mechanical movement control and ensure stable operation of moving parts.
Common applications:
  • Robotic equipment
  • Conveyor systems
  • Automatic feeders
  • Precision mechanisms
3. Automotive Components
Stainless steel long hook extension springs are used in automotive applications requiring durability, vibration resistance, and stable tension performance.
Applications include:
  • Vehicle mechanisms
  • Door systems
  • Seat adjustment structures
  • Brake components
  • Engine-related assemblies
4. Electrical and Electronic Equipment
Precision extension springs provide reliable mechanical force in electrical products and electronic assemblies.
Applications:
  • Switch mechanisms
  • Control devices
  • Connectors
  • Electrical equipment
5. Agricultural Machinery
Used in agricultural equipment requiring durable springs capable of operating under outdoor conditions.
Applications:
  • Farming machines
  • Mechanical adjustment systems
  • Equipment tension mechanisms
6. Medical and Precision Equipment
High-precision long hook springs are suitable for devices requiring stable force control and reliable mechanical performance.
Applications:
  • Medical instruments
  • Laboratory equipment
  • Precision tools
Customization
We provide professional OEM and ODM Long Hook Extension Spring customization services according to customer requirements.
Material Customization
Available materials:
  • SUS304 stainless steel
  • SUS316 stainless steel
  • SUS301 stainless steel
  • Carbon steel
  • Music wire
  • Alloy spring steel
Material selection can be optimized according to:
  • Corrosion resistance requirements
  • Working environment
  • Load conditions
  • Temperature requirements
Dimension Customization
Customized parameters include:
  • Wire diameter
  • Outer diameter
  • Inner diameter
  • Free length
  • Coil length
  • Number of coils
  • Hook length
  • Hook direction
Spring Force Customization
We can customize:
  • Initial tension
  • Maximum extension force
  • Working load
  • Spring rate
  • Operating stroke
Hook Structure Customization
Available designs:
  • Long hook
  • Extended hook
  • Double hook
  • Rotated hook
  • Special mounting hook
Surface Treatment Customization
Options include:
  • Polishing
  • Electroplating
  • Zinc coating
  • Black oxide treatment
  • Passivation
  • Anti-corrosion coating
Engineering Support
Our technical team provides:
  • Spring design analysis
  • Load calculation
  • Drawing review
  • Prototype manufacturing
  • Performance testing
  • Mass production support
Support and Services
Technical Consultation
Our engineers provide professional support for:
  • Spring selection
  • Material recommendation
  • Structural optimization
  • Load requirements
OEM/ODM Manufacturing
We provide complete customized production services including:
  • Customer drawings
  • Product samples
  • Prototype development
  • Batch manufacturing
Quality Control
Each Long Hook Extension Spring undergoes strict inspection procedures:
  • Material verification
  • Wire diameter inspection
  • Dimension measurement
  • Spring force testing
  • Elasticity testing
  • Surface quality inspection
Product Documentation
We provide:
  • Product specifications
  • Inspection reports
  • Material certificates
  • Quality documents
  • Shipping documents
Global Supply Service
With professional spring manufacturing capability, we provide stable supply solutions for international customers in automotive, industrial, automation, and mechanical industries.
Packing and Shipping
Packing
To ensure safe transportation, Long Hook Extension Springs are packed with:
  • Plastic bags for moisture protection
  • Carton boxes
  • Protective trays
  • Export-standard packaging
For large orders:
  • Reinforced cartons
  • Wooden cases
  • Customized packaging solutions
are available.
Shipping Methods
We support multiple international shipping methods:
  • Express delivery for samples
  • Air freight for urgent orders
  • Sea freight for bulk production
Available trade terms:
  • EXW
  • FOB
  • CIF
  • DDP
Complete shipping documents and tracking information are provided for customers.
FAQ
Q1: What is a Long Hook Extension Spring?
A: A Long Hook Extension Spring is a tension spring with extended hook ends designed to provide pulling force and allow flexible installation in mechanical systems.
Q2: What materials are available for long hook extension springs?
A: Common materials include SUS304, SUS316, SUS301 stainless steel, carbon steel, music wire, and alloy spring steel.
Q3: Can you manufacture custom long hook extension springs?
A: Yes. We provide OEM and ODM services based on customer drawings, samples, dimensions, and performance requirements.
Q4: What wire diameter range can you produce?
A: Our extension springs can be manufactured with wire diameters from 0.1mm to 60mm, depending on product design and application requirements.
Q5: What are the advantages of stainless steel extension springs?
A: Stainless steel springs provide excellent corrosion resistance, durability, fatigue resistance, and stable performance in harsh environments.
Tags: 

metal shelf brackets,  

metal support brackets,  

shelf support brackets

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Products
PRODUCTS DETAILS
Products

Metal Stamping Dies

Sheet Metal Progressive Die

Sheet Metal Bending Dies

Metal Stamping Parts

Brass Stamping Parts

Stator Core Laminations

Terminal Block Parts

Deep Drawing Die

Metal Forming Dies

Automotive Stamping Dies

Metal Stamping Mold

PV Cable Clips

Spring
Long Hook Extension Spring with Extended Hook Design and High-Quality Stainless Steel Material for Precision CNC Manufacturing
  • name
  • name
  • name
Long Hook Extension Spring with Extended Hook Design and High-Quality Stainless Steel Material for Precision CNC Manufacturing
Detail Information
Product Description
Detail Information
Place of Origin
CN
Brand Name
METS
Custom Design:
OEM / ODM Supported
Shipping Terms:
By Sea/air/train
Color Marking:
Red / Blue / Custom
Productname:
Spring
Struceture:
Compression Spring
Accepted File Formats:
STEP, IGES, DXF, DWG, PDF
Product Description
Long Hook Extension Spring | Stainless Steel Industrial Spring
Long Hook Extension Spring is a precision-engineered tension spring designed to provide reliable pulling force, controlled movement, and stable mechanical tension in various industrial applications. Featuring extended hook ends, this type of extension spring allows flexible installation, improved connection distance, and secure attachment between mechanical components.
Manufactured from high-quality spring materials such as SUS304, SUS316 stainless steel, carbon steel, and alloy spring steel, our Stainless Steel Long Hook Extension Springs offer excellent elasticity, corrosion resistance, fatigue resistance, and long service life. The extended hook design provides additional installation flexibility, making it suitable for applications requiring longer connection points or special assembly structures.
Using advanced CNC spring forming equipment and strict manufacturing processes, each spring is produced with accurate dimensions, consistent spring force, and reliable performance. The coil body is designed to maintain stable tension during repeated stretching cycles, helping improve equipment efficiency and operational reliability.
Long Hook Extension Springs are widely used in industrial machinery, automation equipment, automotive components, electrical devices, agricultural machinery, medical equipment, and mechanical assemblies. Different wire diameters, coil diameters, hook shapes, spring lengths, and tension forces can be customized according to customer drawings or application requirements.
As a professional custom spring manufacturer, we provide complete OEM and ODM Long Hook Extension Spring solutions, including design support, prototype development, mass production, quality inspection, and global delivery services.
Long Hook Extension Spring | Stainless Steel Industrial Spring is an ideal choice for manufacturers requiring durable, precise, and high-performance tension spring components.
Stainless Steel Long Hook Extension Spring product photo
Features
1. Extended Hook Design for Flexible Installation
  • Long hook structure provides additional mounting distance
  • Suitable for special mechanical connection requirements
  • Easy installation and reliable attachment
2. High-Quality Stainless Steel Material
Available materials:
  • SUS304 stainless steel
  • SUS316 stainless steel
  • SUS301 stainless steel
  • Carbon steel
  • Alloy spring steel
Advantages:
  • Excellent corrosion resistance
  • High tensile strength
  • Long fatigue life
3. Stable Tension Performance
  • Provides consistent pulling force during extension
  • Maintains reliable elasticity after repeated operation
  • Suitable for high-cycle mechanical applications
4. Precision CNC Manufacturing
  • Produced with advanced automatic spring machines
  • Accurate control of wire diameter, coil diameter, and spring length
  • Suitable for prototype and mass production
5. Excellent Fatigue Resistance
  • Designed for repeated stretching and releasing cycles
  • Maintains stable mechanical performance
  • Reduces replacement frequency
6. Wide Industrial Compatibility
Suitable for:
  • Industrial machinery
  • Automation equipment
  • Automotive systems
  • Electrical products
  • Mechanical assemblies
7. Custom OEM Capability
  • Customized spring dimensions and load requirements
  • Supports customer drawings and samples
  • Available for small and large production volumes
Technical Parameters
Parameter Specification
Product Name Long Hook Extension Spring
Product Type Tension Spring / Extension Spring
Material Stainless Steel, Carbon Steel, Alloy Steel
Material Grades SUS304, SUS316, SUS301, 65Mn, SWC
Wire Diameter 0.1mm - 60mm (Customized)
Spring Outer Diameter Customized
Free Length Customized
Hook Type Long Hook / Extended Hook / Custom Hook
Hook Length Customized
Number of Coils Customized
Spring Force Customized According to Requirement
Working Stroke Customized
Surface Treatment Polishing, Electroplating, Passivation, Coating
Operating Temperature -40℃ to +250℃ (Material Dependent)
Manufacturing Process CNC Spring Forming, Heat Treatment, Surface Treatment
Accuracy High Precision Dimensional Control
Application Industrial Equipment, Automotive, Machinery
Production Capacity Prototype to Mass Production
Quality Standard ISO Quality Control System
Applications
1. Industrial Machinery
Long Hook Extension Springs are widely used in industrial equipment to provide pulling force, return force, and tension control. The long hook structure allows easier installation in complex mechanical systems.
Applications include:
  • Manufacturing machines
  • Assembly equipment
  • Packaging machinery
  • Production line equipment
2. Automation Equipment
In automated systems, these springs provide reliable mechanical movement control and ensure stable operation of moving parts.
Common applications:
  • Robotic equipment
  • Conveyor systems
  • Automatic feeders
  • Precision mechanisms
3. Automotive Components
Stainless steel long hook extension springs are used in automotive applications requiring durability, vibration resistance, and stable tension performance.
Applications include:
  • Vehicle mechanisms
  • Door systems
  • Seat adjustment structures
  • Brake components
  • Engine-related assemblies
4. Electrical and Electronic Equipment
Precision extension springs provide reliable mechanical force in electrical products and electronic assemblies.
Applications:
  • Switch mechanisms
  • Control devices
  • Connectors
  • Electrical equipment
5. Agricultural Machinery
Used in agricultural equipment requiring durable springs capable of operating under outdoor conditions.
Applications:
  • Farming machines
  • Mechanical adjustment systems
  • Equipment tension mechanisms
6. Medical and Precision Equipment
High-precision long hook springs are suitable for devices requiring stable force control and reliable mechanical performance.
Applications:
  • Medical instruments
  • Laboratory equipment
  • Precision tools
Customization
We provide professional OEM and ODM Long Hook Extension Spring customization services according to customer requirements.
Material Customization
Available materials:
  • SUS304 stainless steel
  • SUS316 stainless steel
  • SUS301 stainless steel
  • Carbon steel
  • Music wire
  • Alloy spring steel
Material selection can be optimized according to:
  • Corrosion resistance requirements
  • Working environment
  • Load conditions
  • Temperature requirements
Dimension Customization
Customized parameters include:
  • Wire diameter
  • Outer diameter
  • Inner diameter
  • Free length
  • Coil length
  • Number of coils
  • Hook length
  • Hook direction
Spring Force Customization
We can customize:
  • Initial tension
  • Maximum extension force
  • Working load
  • Spring rate
  • Operating stroke
Hook Structure Customization
Available designs:
  • Long hook
  • Extended hook
  • Double hook
  • Rotated hook
  • Special mounting hook
Surface Treatment Customization
Options include:
  • Polishing
  • Electroplating
  • Zinc coating
  • Black oxide treatment
  • Passivation
  • Anti-corrosion coating
Engineering Support
Our technical team provides:
  • Spring design analysis
  • Load calculation
  • Drawing review
  • Prototype manufacturing
  • Performance testing
  • Mass production support
Support and Services
Technical Consultation
Our engineers provide professional support for:
  • Spring selection
  • Material recommendation
  • Structural optimization
  • Load requirements
OEM/ODM Manufacturing
We provide complete customized production services including:
  • Customer drawings
  • Product samples
  • Prototype development
  • Batch manufacturing
Quality Control
Each Long Hook Extension Spring undergoes strict inspection procedures:
  • Material verification
  • Wire diameter inspection
  • Dimension measurement
  • Spring force testing
  • Elasticity testing
  • Surface quality inspection
Product Documentation
We provide:
  • Product specifications
  • Inspection reports
  • Material certificates
  • Quality documents
  • Shipping documents
Global Supply Service
With professional spring manufacturing capability, we provide stable supply solutions for international customers in automotive, industrial, automation, and mechanical industries.
Packing and Shipping
Packing
To ensure safe transportation, Long Hook Extension Springs are packed with:
  • Plastic bags for moisture protection
  • Carton boxes
  • Protective trays
  • Export-standard packaging
For large orders:
  • Reinforced cartons
  • Wooden cases
  • Customized packaging solutions
are available.
Shipping Methods
We support multiple international shipping methods:
  • Express delivery for samples
  • Air freight for urgent orders
  • Sea freight for bulk production
Available trade terms:
  • EXW
  • FOB
  • CIF
  • DDP
Complete shipping documents and tracking information are provided for customers.
FAQ
Q1: What is a Long Hook Extension Spring?
A: A Long Hook Extension Spring is a tension spring with extended hook ends designed to provide pulling force and allow flexible installation in mechanical systems.
Q2: What materials are available for long hook extension springs?
A: Common materials include SUS304, SUS316, SUS301 stainless steel, carbon steel, music wire, and alloy spring steel.
Q3: Can you manufacture custom long hook extension springs?
A: Yes. We provide OEM and ODM services based on customer drawings, samples, dimensions, and performance requirements.
Q4: What wire diameter range can you produce?
A: Our extension springs can be manufactured with wire diameters from 0.1mm to 60mm, depending on product design and application requirements.
Q5: What are the advantages of stainless steel extension springs?
A: Stainless steel springs provide excellent corrosion resistance, durability, fatigue resistance, and stable performance in harsh environments.
Tags: 

metal shelf brackets,

metal support brackets,

shelf support brackets

Xiamen METS Industry & Trade Co., Ltd
102，No.42， Xibin Road,Xinglin，Jimei district,Xiamen,China,361022
Tel: 008613860452810
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