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The compression coil springs of Tri-Spring, with a total of 10,138 types made from stainless wire and piano wire, offer an industry-leading selection.

Stainless steel wire (SUS304WPB) is excellent in rust and heat resistance, making it suitable for outdoor and humid environments. However, its strength is lower compared to piano wire, and it is more expensive. - Wire diameter ranges from 0.16mm to 2.0mm with 23 sizes - Outer diameter ranges from 1.4mm to 24mm with 32 sizes - Free length ranges from 3mm to 200mm with 32 sizes Piano wire (SWPA) is similar to iron and rusts easily, so standard products are coated with anti-rust oil on the surface. It has about 10% higher strength compared to stainless steel wire and is less expensive. - Wire diameter ranges from 0.35mm to 4.0mm with 20 sizes - Outer diameter ranges from 2.6mm to 35mm with 32 sizes - Free length ranges from 4mm to 200mm with 43 sizes For each wire diameter, the table shows outer diameter on the horizontal axis and free length on the vertical axis, so the intersection of outer diameter and free length represents one product. *We will send you the catalog for free upon request.

The tensile coil springs of Tri-Spring come in a total of 1,287 types, including stainless steel and piano wire, offering a wide variety of options.

Stainless steel wire (SUS304WPB) is excellent in rust resistance and heat resistance, making it suitable for outdoor and humid environments. However, it has lower strength compared to piano wire and is more expensive. - Wire diameter: 21 sizes from 0.18mm to 2.0mm - Outer diameter: 25 sizes from 2.0mm to 24mm - Free length: 20 sizes from 6.5mm to 180mm Piano wire (SWPA) is similar to iron and rusts easily, so standard products are coated with anti-rust oil on the surface. It has about 10% higher strength than stainless steel wire and is less expensive. - Wire diameter: 5 sizes from 1.2mm to 2.0mm - Outer diameter: 12 sizes from 9mm to 24mm - Free length: 11 sizes from 30mm to 180mm The hook with a 90° opposing angle (cross type) is available in both stainless steel wire and piano wire as follows: - Wire diameter: 4 sizes from 1.4mm to 2.0mm - Outer diameter: 10 sizes from 11mm to 24mm - Free length: 6 sizes from 35mm to 80mm There is a table for each wire diameter, with the outer diameter on the horizontal axis and the free length on the vertical axis, so the intersection of the outer diameter and free length represents one product. *We will send the catalog for free, so please let us know if you would like one.

The torsion coil springs of Trispring come in a total of 1428 types, including stainless steel and piano wire, and they also support left-hand winding.

Stainless steel wire (SUS304WPB) is excellent in rust and heat resistance, making it suitable for outdoor and humid environments. However, it has lower strength compared to piano wire and is more expensive. - Wire diameter: 9 sizes from 0.3mm to 1.2mm - Inner diameter: 11 sizes from 2.0mm to 12mm - Arm angle: 7 sizes from 0 degrees to 270 degrees - Number of turns: 2 to 5 turns Piano wire (SWPA) is similar to iron and rusts easily, so standard products are coated with anti-rust oil on the surface. It has about 10% higher strength than stainless steel wire and is less expensive. - Wire diameter: 4 sizes from 1.4mm to 2.0mm - Inner diameter: 6 sizes from 10mm to 15mm - Arm angle: 7 sizes from 0 degrees to 270 degrees - Number of turns: 2 to 5 turns (Standard products are right-handed, but left-handed options are also available.) For each wire diameter, the table shows arm angles horizontally and inner diameters and number of turns vertically, so the intersection of the angle with the inner diameter and number of turns represents one product. *We will send the catalog for free, so please let us know if you would like one.

The Tri-Spring circlip can be used for retaining rings and other applications, with a total of 197 types made from stainless wire and piano wire.

Stainless wire (SUS304WPB) is excellent in rust and heat resistance, making it suitable for outdoor and humid environments; however, it has lower strength compared to piano wire and is more expensive. - Wire diameters are available in 9 sizes from 0.8mm to 1.2mm. - Outer diameters are available in 43 sizes from 9mm to 30mm. Piano wire (SWPA) is similar to iron and prone to rust, so standard products are coated with anti-rust oil on the surface. - Wire diameters are available in 4 sizes from 1.4mm to 2.0mm. - Outer diameters are available in 35 sizes from 16mm to 50mm. In the catalog table, the intersection of wire diameter and outer diameter represents one product. *We will send the catalog free of charge, so please let us know if you would like one.*