4mm Stainless Steel Tension Springs with Hooks – 10/20/50 Pack
4mm Stainless Steel Tension Springs with Hooks – 10/20/50 Pack
4mm Stainless Steel Mini Tension Springs with Hooks
These compact stainless steel tension springs are a versatile must-have for DIY projects, toy making, mechanical repairs, and hobby crafting. Featuring hooked ends on both sides for easy attachment, each spring delivers strong, reliable stretching performance in a small, lightweight form factor.
Key Features
- Material: High-quality stainless steel — corrosion-resistant and durable for long-term use
- Diameter: 4mm — compact and ideal for small-scale applications
- Spring Length: 6mm | Total Length (with hooks): 14mm
- Maximum Extension: Stretches up to 30mm for strong tensile performance
- Hook Style: Circular hooks on both ends for secure, easy connection
- Available in packs of: 10, 20, or 50 pieces — stock up and save
Common Uses
- DIY toys and mechanical toy projects
- Hobby and scale model building
- Small appliance and gadget repairs
- Crafting, prototype building, and general hardware tasks
- Fidget and stress toy assembly
Product Specifications
| Material | Stainless Steel |
| Diameter | 4mm |
| Spring Body Length | 6mm |
| Total Length | 14mm |
| Max. Extension | 30mm |
| Hook Type | Circular (both ends) |
| Pack Size | 10 / 20 / 50 pieces |
| Country of Origin | Made in China |
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Frequently Asked Questions
Q: What are these 4mm stainless steel tension springs used for?
A: These mini tension springs with hooks are commonly used in DIY toy making, hobby models, small mechanical assemblies, crafting, and general hardware repairs. Their compact 4mm diameter and hooked ends make them easy to attach and versatile across a wide range of small-scale projects.
Q: How far can these tension springs stretch?
A: Each spring has a body length of 6mm and a total length (including hooks) of 14mm. They can extend up to 30mm, providing strong and reliable tensile performance for their size.
Q: Are these springs rust-resistant?
A: Yes. These springs are made from stainless steel, which offers excellent resistance to corrosion and oxidation, making them suitable for both indoor and light outdoor use in your DIY or hobby projects.