Washer Product List and Ranking from 19 Manufacturers, Suppliers and Companies | IPROS

Last Updated： Aggregation Period:Sep 09, 2026～Oct 06, 2026
This ranking is based on the number of page views on our site.

Washer Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Sep 09, 2026～Oct 06, 2026
This ranking is based on the number of page views on our site.

  1. ティ・カトウ 本社 Tokyo//Building materials, supplies and fixtures manufacturers
  2. null/null
  3. サンワ・アイ Osaka//others
  4. 4 JFE商事テールワン Tokyo//Building materials, supplies and fixtures manufacturers
  5. 5 アヅマネジ Tokyo//others
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Washer Product ranking

Last Updated： Aggregation Period:Sep 09, 2026～Oct 06, 2026
This ranking is based on the number of page views on our site.

  1. Seismic washer: Automatically follows gaps in wood! No need for additional tightening with the Tightonic washer. ティ・カトウ 本社
  2. Omega Round Washer 70 II for M12 Anchor Bolt
  3. Washer "Screw Washer (Zaboresu)"
  4. 4 Omega Round Washer 58 for M12 Anchor Bolt
  5. 5 Vibration-resistant, non-loosening washer [Titanic] ティ・カトウ 本社

Washer Product List

31～45 item / All 45 items

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The joint for wooden construction uses vibration-resistant and non-loosening washers [Titanic].

The joint for wooden construction uses vibration-resistant and non-loosening washers [Titanic].

Can be used for medium to large-scale wooden structures. Strong against vibrations! Easy to install! No need for re-tightening! Seismic-resistant washer "Titanic" compatible with various joints.

"Titanic" converts the vibrations at the joints into a tightening force using the patented technology "Magic Ring." It does not loosen even under continuous vibrations. 【Features】 - Converts vibrations into a tightening force with the Magic Ring - Follows the wood's natural movement, eliminating the need for re-tightening - Reduces the swaying of houses during earthquakes, vehicle vibrations, and typhoon winds - Withstands large forces with a light tightening force - Available in types suitable for outdoor use You can see examples of its use in large-scale wooden structures at the joints. *For more details, please refer to the PDF materials or feel free to contact us.

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Backup washer for preventing supply rotation.

Backup washer for preventing supply rotation.

A simple way to eliminate supply chain issues! Work time can be reduced depending on the site conditions.

The "Backup Washer" is a product that eliminates the need for a backup wrench simply by placing it under the nut, just like a regular washer. When using this product for bolt tightening, there is no need to use a backup wrench. Safety risks, such as pinching fingers, are eliminated. 【Features】 ■ No backup wrench required ■ Reduced working time ■ Cost-effective *For more details, please refer to the related links or feel free to contact us.

  • Work tools
  • Washer

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Flat seat gold 300HV <JIS B 1256:2008 standard>

Flat seat gold 300HV <JIS B 1256:2008 standard>

Material uses S45C to S55C (domestic material)! It is recommended to combine with screw part strength classification 10.9.

We would like to introduce the "Flat Washer 300HV" handled by Sanwa Ai. It prevents the nut or bolt head from sinking into the joined material. When the hole diameter is larger than the bolt diameter, it can be used to stabilize the seating surface. The material used is S45C to S55C (domestic material), and it undergoes bright quenching and tempering heat treatment. 【Features】 ■ JIS B 1256:2008 ■ Recommended for use in combination with screw part strength classification 10.9 (JIS B 1061:2020) ■ Marked with hardness classification 300HV ■ Can provide mill sheets and inspection certificates *For more details, please refer to the PDF materials or feel free to contact us.

  • Safety and consumables
  • Washer

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Flat seat gold 300HV <Avoiding the risk of sinking during bolt fastening>

Flat seat gold 300HV <Avoiding the risk of sinking during bolt fastening>

Marked with a hardness classification of 300HV! It is recommended to combine with screw component strength classification 10.9.

We handle the "Flat Washer 300HV" to avoid the risk of sinking during bolt fastening. This product prevents sinking of the bolt seating surface, which is a cause of loosening of bolts and nuts, and can be used to stabilize the seating surface when the hole diameter is larger than the bolt diameter. The material used is S45C to S55C (domestic material), and it undergoes bright hardening and tempering heat treatment. 【Features】 ■ JIS B 1256:2008 ■ Recommended for combination with screw part strength classification 10.9 (JIS B 1061:2020) ■ Marked with hardness classification 300HV ■ Can provide mill sheets and inspection certificates *For more details, please refer to the PDF document or feel free to contact us.

  • Safety and consumables
  • Washer

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Seal washer <compatible with water, oil, and air>

Seal washer <compatible with water, oil, and air>

For preventing gas and liquid leaks! A washer that can handle water, oil, and air, and can maintain a pressure of 200 atmospheres (20 MPa).

At Sanwa Ai, we handle "Seal Washers." This is a set product that incorporates a rubber packing into a metal-formed bowl-shaped washer. The rubber packing is press-fitted onto the threaded part of the bolt, sealing the fluid at the side. Additionally, this product has passed a pressure test of 200 atmospheres (20 MPa). Please feel free to contact us when you need assistance. 【Features】 - Suitable for preventing gas and liquid leakage - Passed a pressure test of 200 atmospheres (20 MPa) - Demonstrates sufficient performance even when used directly on the surfaces of black steel and cast iron - Vibration damping and soundproofing effects - The metal and rubber packing do not resonate with vibrations *For more details, please refer to the PDF materials or feel free to contact us.

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Seismic washer: Automatically follows gaps in wood! No need for additional tightening with the Tightonic washer.

Seismic washer: Automatically follows gaps in wood! No need for additional tightening with the Tightonic washer.

For those troubled by "wood shrinkage loosening and tightening"! Introducing the easy-to-install seismic washer "Titanic," suitable for medium to large wooden structures.

Do you have any concerns like these on wooden structures or vibration-prone sites? ■ Nuts loosen due to "wood shrinkage" from drying, reducing the strength of structural joints. ■ Regular manual tightening processes are required for addressing aging changes and loosening after handover. ■ The abundance of reinforcement hardware cannot fit within the walls, limiting design aesthetics and fire safety design. The seismic washer Taitonic fundamentally resolves these issues. ◇ Patent technology "Magic Ring" automatic follow-up performance Even when wood dries and shrinks, the built-in ring automatically acts in the tightening direction, instantly absorbing gaps. ◇ Significantly reduces the hassle of re-tightening maintenance It eliminates the need for re-tightening work after construction or after a long period, maintaining the initial fastening force of the joints. ◇ Simplifies hardware installation with structural pulling effect It firmly fastens the structure with strong holding power. By reducing unnecessary pulling hardware, it results in a neat fit and contributes to fire spread suppression. You can see examples of joints used in large-scale wooden structures. *For more details, please refer to the PDF document or feel free to contact us.

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【For residential construction】Seismic seat that follows wood shrinkage and does not loosen【Titanic】

【For residential construction】Seismic seat that follows wood shrinkage and does not loosen【Titanic】

Seismic seat "Titanic" to prevent the decrease in seismic strength due to wood shrinkage.

In the residential construction industry, the durability of the joints in structural materials is crucial for achieving the longevity of buildings. In particular, the "shrinkage" of wood due to aging can lead to loosening of joints and a decrease in seismic performance. To address these challenges and maintain the inherent seismic performance of homes, components that can adapt to wood shrinkage and consistently tighten the joints are required. The "Titanic" is a seismic washer that maintains tightness while adapting to wood shrinkage, thanks to its built-in spring and the wedging effect of the magic ring. This helps prevent the deterioration of a home's seismic performance. 【Usage Scenarios】 - Structural material joints in new homes - Renovation and maintenance of existing homes - Natural disaster measures against earthquakes and typhoons - Ongoing vibration measures against road vibrations 【Benefits of Implementation】 - Suppression of decreased seismic performance due to wood shrinkage - Reduction of the labor involved in re-tightening work - Simplification of installation work - Reduction of the shaking of homes against earthquakes, typhoons, and road vibrations

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  • Washer

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Vibration-resistant and non-loosening washers for sports facilities【Titanic】

Vibration-resistant and non-loosening washers for sports facilities【Titanic】

Seismic isolation pads that absorb shock and enhance the stability of equipment.

In the sports facility industry, it is essential to prevent loosening and damage to equipment caused by intense movements and external shocks, while maintaining stable performance. Particularly in environments where vibrations and impacts frequently occur, the strength of the joints in the equipment becomes crucial. Improper fastening can lead to decreased performance and potential failures of the equipment. Our seismic washer "Titanic" converts the vibrations acting on the joints into a tightening force, ensuring that the equipment remains stable without loosening even under continuous vibrations. 【Usage Scenarios】 - Joints of sports equipment - Fixing training equipment - Assembling competitive gear 【Benefits of Implementation】 - Suppression of loosening due to vibrations - Improved stability of equipment - Reduced maintenance frequency

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【For Long-Term Excellent Housing】 Washboard that follows wood shrinkage and does not loosen【Titanic】

【For Long-Term Excellent Housing】 Washboard that follows wood shrinkage and does not loosen【Titanic】

Seismic seat "Titanic" that enhances the durability of long-term excellent housing.

In the construction industry of long-term excellent housing, the durability of the joints in structural materials is crucial for achieving the longevity of buildings. In particular, "wood shrinkage" due to the aging of wood can lead to loosening of joints and a decrease in seismic performance. To address these challenges and maintain the inherent seismic performance of the housing, components that can adapt to wood shrinkage and consistently secure the joints are required. The "Titanic" is a seismic washer that maintains tightening while adapting to wood shrinkage, thanks to its built-in spring and the wedging effect of the magic ring. This helps prevent the deterioration of the seismic performance of the housing and contributes to the durability improvement of long-term excellent housing. [Usage Scenarios] - Structural material joints in new houses - Renovation and maintenance of existing houses - Natural disaster measures against earthquakes and typhoons - Continuous vibration measures against road vibrations [Effects of Implementation] - Suppression of the decline in seismic performance due to wood shrinkage - Reduction of the labor involved in re-tightening work - Simplification of installation work - Mitigation of housing swaying due to earthquakes, typhoons, and road vibrations

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  • ﾀｲﾄﾆｯｸ写真?.PNG
  • ﾀｲﾄﾆｯｸ写真?.PNG
  • ｱﾝｶｰﾎﾞﾙﾄ.PNG
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  • Earthquake-resistant construction method
  • Washer

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Seal washer <Prevention of gas and liquid leakage>

Seal washer <Prevention of gas and liquid leakage>

The design makes it difficult for the rubber to protrude even when tightening to the appropriate torque! It seals the fluid on the side.

At Sanwa Ai, we handle "seal washers." This is a set product that incorporates a rubber packing into a metal-formed bowl-shaped washer. The rubber packing is press-fitted onto the threaded part of the bolt, sealing fluids at the side. Designed to minimize rubber overflow even under proper torque tightening, we use SUS304, which is resistant to rust, as the standard material, and offer packings made of NBR (standard specification), silicone, fluororubber, and EPDM. 【Features】 - Suitable for preventing gas and liquid leakage - Passed pressure tests of 200 atmospheres (20 MPa) - Provides sufficient performance even when used directly on the surfaces of black steel and cast iron - Vibration damping and soundproofing effects - Metal and rubber packing do not resonate with vibrations *For more details, please refer to the PDF materials or feel free to contact us.

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Seal washer <capable of sealing fluids strongly>

Seal washer <capable of sealing fluids strongly>

Introducing a washer that strongly seals fluids with a rubber packing that deeply embeds into the threaded part of the bolt!

At Sanwa Ai, we handle "seal washers." This is a set product that incorporates a rubber packing into a metal-formed bowl-shaped washer. The rubber packing is press-fitted onto the threaded part of the bolt, sealing the fluid at the side. We use SUS304, which is resistant to rust, as the standard material, and we offer packings made of NBR (standard specification), silicone, fluororubber, and EPDM. 【Features】 ■ Suitable for preventing gas and liquid leakage ■ Passed pressure tests at 200 atmospheres (20 MPa) ■ Demonstrates sufficient performance even when used directly on the surface of black steel and cast iron ■ Vibration-damping and sound-absorbing effects ■ Metal and rubber packing do not resonate with vibrations *For more details, please refer to the PDF materials or feel free to contact us.

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Non-loosening seismic seat cushion that follows wood shrinkage【Titanic】

Non-loosening seismic seat cushion that follows wood shrinkage【Titanic】

Seismic seat "Titanic" that prevents the decrease in seismic strength due to wood shrinkage. No need for additional tightening! Easy to install! Strong against vibrations!

"Taitonic" is a washer that follows wood shrinkage and does not loosen. It adapts to wood shrinkage with internal springs and tightens using the "wedge" effect of the magic ring. The seismic performance of a house is based on the premise that structural joints are firmly connected. "Taitonic" does not degrade the inherent seismic performance of the house. Additionally, "Taitonic" converts the vibrations acting on the house into a tightening force with the magic ring. This means it does not loosen not only during earthquakes but also from continuous vibrations such as those caused by typhoons or road traffic. 【Features】 ■ Tightens in response to wood shrinkage ■ Converts vibrations into a tightening force with the magic ring ■ Makes it difficult for the house to sway from earthquakes, vehicle vibrations, or typhoon winds ■ Withstands large forces with light tightening force *For more details, please refer to the PDF document or feel free to contact us.

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  • ｱﾝｶｰﾎﾞﾙﾄ.PNG
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Seismic seat bolts that follow wood shrinkage and do not loosen for public facility construction.

Seismic seat bolts that follow wood shrinkage and do not loosen for public facility construction.

Strengthening disaster prevention in public facilities. The "Titanic" seismic seat that follows wood shrinkage and does not loosen.

In the construction of public facilities, maintaining the safety of structures over the long term is essential. In particular, durability against natural disasters such as earthquakes and typhoons is extremely important as it directly relates to the safety of facility users. "Wood shrinkage" due to the aging of timber can lead to loosening at the joints of buildings and a decrease in seismic performance. To address this issue, our company offers the non-loosening seismic washer "Titanic," which adapts to wood shrinkage. 【Usage Scenarios】 - Joints of structural materials in public facilities - Buildings expected to experience vibrations from earthquakes or typhoons - Facilities requiring long-term maintenance of seismic performance 【Benefits of Implementation】 - Suppression of decreased seismic performance due to wood shrinkage - Reduction of the labor involved in re-tightening - Decrease in loosening due to continuous vibrations

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  • ﾀｲﾄﾆｯｸ写真?.PNG
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  • Other store equipment and supplies
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  • Earthquake-resistant construction method
  • Washer

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Vibration-resistant, non-loosening washers for ships【Titanic】

Vibration-resistant, non-loosening washers for ships【Titanic】

For securing lighting and equipment related to vessels. Strong against vibrations, easy to install, no need for re-tightening.

On ships, vibrations and swaying caused by navigation are always present. These vibrations can lead to loosening or damage of fixed parts, affecting safety. In particular, the secure fixation of equipment and structures on the deck is essential for safe navigation. Our seismic washer "Titanic" transforms the forces exerted by vibrations at the joints into tightening forces, ensuring a secure fixation that does not loosen even under continuous vibrations. 【Usage Scenarios】 - Fixing equipment and structures on the ship's deck - Reinforcing joints in areas prone to vibrations - Measures against swaying caused by typhoons and rough seas 【Benefits of Implementation】 - Reduced risk of loosening or damage due to vibrations - Simplification of installation work and reduction of labor costs - Long-term maintenance cost control

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【For the semiconductor manufacturing industry】Vibration-resistant, non-loosening washers【Titanic】

【For the semiconductor manufacturing industry】Vibration-resistant, non-loosening washers【Titanic】

Vibration control in a clean environment. Easy to install, no need for re-tightening.

In the clean environment of semiconductor manufacturing, even minor vibrations can potentially affect product quality. To maintain stable operation of equipment and a precise working environment, it is crucial to prevent loosening caused by vibrations. Our product "Titanic" transforms the vibrations at the joints into a tightening force, providing a stable environment without loosening even under continuous vibrations. 【Usage Scenarios】 - Joints of manufacturing equipment in clean rooms - Conveying lines prone to vibrations - Installation points for precision instruments 【Benefits of Implementation】 - Supports stable operation of equipment - Contributes to maintaining a precise working environment - Reduces maintenance frequency due to loosening

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