Best Century Spring in 2026

Maximum deflection

35.4 lb maximum safe load

Feature: 12 inch length

0.091 wire diameter

3.2 maximum deflection

29 maximum safe load

0.072 wire diameter

1.48 maximum deflection

21.1 maximum safe load

Tempered spring steel wire

Nickel plated spring steel

Use for a variety of household applications.

For use in a variety of applications; appliances, automotive, marine, toys, tools, mechanical devices, contraptions and more

These extension springs are designed with single loop closed ends for easy and reliable fastening to fixed and moving parts

Spring dimensions: 7/16 inch outside diameter, 3-1/2 inch length, 0.047 inch wire diameter, 8.47 lbs. maximum safe load, 3.5 inch maximum deflection

1.Material: Zinc Plated Steel, which has excellent elasticity and fatigue resistance, provide additional durability for appropriate tension.

2.Size: Including 9/32’’ x 1/2’’, 13/64’’ x 13/16’’, 3/8’’ x 5/8’’, 5/16’’ x 1-1/8’’, 1/4’’ x 13/32’’, 7/32’’ x 1’’, 3/8’’ x 3/4’’, 7/32’’ x 11/16’’, <br>1/4’’ x 7/8’’, 5/16’’ x 1-27/32’, 11/32’’ x 1-27/32’’, 5/16’’ x 1-3/4’’, 9/32’’ x 2’’, 5/32’’ x 3-1/8’’, 23/64’’ x 1-3/8’’, 3/16’’ x 1-3/4’, <br>7/32’’ x 1- 1/2’’, 9/32’’ x 1- 1/2’’, 9/32’’ x 3/4’’, 11/32’’ x 1- 7/16’. Total 20 kinds, 200pcs.

3.High quality: Stable and durable, corrosion resistant, zinc Plated surface, smooth and no stab, riveting smooth, high ductility, good<br> fatigue strength. After baking, it has antirust effect and heat treatment. It has good performance and service life.

For use in a variety of applications; appliances, automotive, marine, toys, tools, mechanical devices, contraptions and more

These extension springs are designed with single loop open ends for easy and reliable fastening to fixed and moving parts

Spring dimensions: 5/8 inch outside diameter, 3-1/4 inch length, 0.072 inch wire diameter, 19.1 lbs. maximum safe load, 2.01 inch maximum deflection

Material: Our Long screen door spring are made of zinc plated steel, it is of good quality, good durability

Our tension springs can used in automotive, instrument, electrical equipment, household appliances, furniture, mechanical equipment, electronic sports equipment.

Our long screen springs are important tool in our daily life.

For use in a variety of applications; appliances, automotive, marine, toys, tools, mechanical devices, contraptions and more

These extension springs are designed with single loop open ends for easy hook and latch installations

Spring dimensions: 1-1/4 inch outside diameter, 10 inch length, 0.148 inch wire diameter, 73.7 lbs. maximum safe load, 6.18 inch maximum deflection

Maximum deflection

35.4 lb maximum safe load

Feature: 12 inch length

Sufficient Extension Spring: the package contains 10 pieces of springs 1 inch, adequate quantity to meet your daily needs and replacements

Quality and Sturdy: the spring extension is made of quality stainless steel material, which is sturdy and strong, featuring good elasticity, flexible and long lasting

Convenient Design: the extension spring is designed with 2 openings that you can use and fix it easily and conveniently

Wire Diameter:1.2mm/0.047"; Outer Diameter: 10mm/0.39"(OD); Free Length: 50mm/1.97"

Made of stainless steel material not easy to rust, more durable.

Tension spring can be used in many occasions, such as production and assembly, experiment, research and development, maintenance, etc..

Antirust materials : Stainless steel 304 wire Which can not rust in humid environment and have strong oxidation resistance, acid resistance and corrosion resistance.

Easy storage and use : All the extension springs are neatly packed in a plastic storage box and size label can be use to identify spring sizes.

Versatile : 15 Kinds of size springs which you may choose for home repairs. We hope this springs assortment kit will suitable for most repair project, Such as doors, curtain, automobiles, bike, piano, scissors, electrical equipment, repair tools, umbrella, antique tape recorder, repair toy, pliers and so on.

0.091 wire diameter

3.2 maximum deflection

29 maximum safe load

DIY Supplies: Metalworking

Comes with 10 Pack long spring for a variety of household applications use

20" extension spring; 0.35" diameter

Made of Nickel plated steel material for durability

Material: Our Long screen door spring are made of zinc plated steel, it is of good quality, good durability

Our extension springs can used in automotive, instrument, electrical equipment, household appliances, furniture, mechanical equipment, electronic sports equipment.

Our long screen door springs are important tool in our daily life.

Load Type: Torsion

Surface: polishing, anodizing

Material: Spring Steel

Sufficient Quantity: Our package comes with 10 pieces of 1-inch extension springs, providing ample supply for your daily needs and replacements.

Quality and Durability: Crafted with high-quality stainless steel, our extension springs are not only strong and sturdy but also boast excellent elasticity and flexibility, ensuring long-lasting usage.

Convenient Design: The extension spring is designed with 2 openings, making it easy to use and fix, saving you time and effort.

The deformation angle is proportional to the torque, and has high torque.

It is used for the mechanism that works for a long time with the torque of multiple angles.

It is not easy to fatigue

Comes with 10 Pack long spring for a variety of household applications use

20" extension spring; 0.35" diameter

Made of Nickel plated steel material for durability

[1]:APPLY TO - Can be used in home furniture such as door, sofa, chair, lounge chair, recliner, etc. Suitable for repairing accessories for home, construction machinery, electrical equipment, mechanical device and more.

[2]:SPECIFICATION - Wire Dia.: 1.5mm/0.06"; Spring Size(Outer Dia.): 12mm/0.48"; Free Length: 100mm/3.94"

[3]:DESIGN - The extension spring is designed with a dual hook, the hook at both ends of the spring, more convenient and practical to fasten, and can be easily disassembled without other tools.

0.072 wire diameter

1.48 maximum deflection

21.1 maximum safe load

[1]:APPLY TO - Can be used in home furniture such as door, sofa, chair, lounge chair, recliner, etc. Suitable for repairing accessories for home, construction machinery, electrical equipment, mechanical device and more.

[2]:SPECIFICATION - Wire Dia.: 0.5mm/0.02"; Spring Size(Outer Dia.): 5mm/0.2"; Free Length: 25mm/0.98"

[3]:DESIGN - The extension spring is designed with a dual hook, the hook at both ends of the spring, more convenient and practical to fasten, and can be easily disassembled without other tools.