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Washer Product List and Ranking from 37 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Aug 06, 2025～Sep 02, 2025
This ranking is based on the number of page views on our site.

Washer Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Aug 06, 2025～Sep 02, 2025
This ranking is based on the number of page views on our site.

  1. null/null
  2. 由良産商株式会社　特販部　特販課 Osaka//Machine elements and parts
  3. サンワ・アイ Osaka//Manufacturing and processing contract
  4. 4 ウィルコ Kanagawa//Industrial Machinery
  5. 5 ハイトーク/HYTORC ユネックス Tokyo//Industrial Machinery
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Washer Product ranking

Last Updated： Aggregation Period:Aug 06, 2025～Sep 02, 2025
This ranking is based on the number of page views on our site.

  1. Disc spring / washer
  2. Flat seat gold 300HV 由良産商株式会社　特販部　特販課
  3. Backup washer for preventing supply rotation. ハイトーク/HYTORC ユネックス
  4. Kobayashi Washer Manufacturing Co., Ltd. Company Profile 小林ワッシャー製作所
  5. Hexagonal hole plate spring washer "SUS CDW" 由良産商株式会社　特販部　特販課

Washer Product List

1～15 item / All 79 items

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Anti-loosening washer (NORD-LOCK)

Anti-loosening washer (NORD-LOCK)

Safety, no special tools required, maintenance and inspection possible! Sizes available from M3 to M42.

The "NORD-LOCK washer" is a loosening prevention washer that secures bolts using tension rather than friction resistance. This system consists of a pair of washers, one with a cam surface and the other with a radial rib surface. The angle of the cam (α) is designed to be larger than the lead angle of the screw (β), making it difficult to easily overcome the cam. The wedge effect created by the cam surfaces prevents loosening of the bolt due to rotation. 【Features】 - Prevents loosening caused by intense vibrations and fluctuating loads, ensuring safe fastening. - Can be quickly and easily installed and removed with standard tools. *For more details, please refer to the PDF document or feel free to contact us.

  • bolt
  • nut

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Steel flat washers, trivalent chromate black.

Steel flat washers, trivalent chromate black.

Iron flat washer, trivalent chromate black.

When the hole diameter of the material being fastened is larger than that of the screw, it can stabilize the screw head. By increasing the surface area of the screw head, it enhances the adhesion with the material. It is also referred to as a washer or flat washer. This product is compliant with EU-RoHS.

  • nut

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Iron spring washer No. 2, trivalent chromate black.

Iron spring washer No. 2, trivalent chromate black.

Iron spring washer No. 2, trivalent chromate black.

This is a general-purpose (Type 2) product that meets JIS standards. It is said that the spring washer exerts a repulsive force that presses the screw head and the mating material together, making it difficult for the screw and nut to come loose. It is also referred to as a spring washer. This product is compliant with EU-RoHS regulations.

  • nut

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Stainless steel + small pot screws with spring washers and small diameter flat washers.

Stainless steel + small pot screws with spring washers and small diameter flat washers.

Stainless steel + small pan screw with spring washer and small diameter flat washer.

A washer is incorporated into the screw. Since the washer does not come off the screw, it saves the trouble of setting the washer and improves work efficiency. It is also referred to as a Sems screw. It is compliant with EU-RoHS standards.

  • bolt

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Stainless steel + small pot screws with spring washers and large flat washers included.

Stainless steel + small pot screws with spring washers and large flat washers included.

Stainless steel + small pot screws with spring washers and large flat washers included.

A washer is incorporated into the screw. Since the washer does not come off the screw, it saves the effort of setting the washer and improves work efficiency. It is also referred to as a Sems screw. It is compliant with EU-RoHS standards.

  • bolt

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Stainless Steel Hex Bolt with Full Thread, Spring Washer and Large Flat Washer Included

Stainless Steel Hex Bolt with Full Thread, Spring Washer and Large Flat Washer Included

Stainless Steel Hex Bolt with Full Thread, Spring Washer and Large Flat Washer Included

The head shape is hexagonal, allowing for tightening with tools such as wrenches and spanners. It can be tightened more securely than screws with a cross hole. Since the washer does not come off the screw, it saves the trouble of setting the washer, thereby improving work efficiency. It is also referred to as a Sems screw. It is compliant with EU-RoHS standards.

  • bolt

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Stainless steel spring washer No. 2

Stainless steel spring washer No. 2

Stainless steel spring washer No. 2

This is a general-purpose (Type 2) product that meets JIS standards. It is said that the spring washer exerts a repulsive force that presses the head of the screw and the mating material together, making it difficult for the screw and nut to come loose. It is also referred to as a spring washer. This product is compliant with EU-RoHS regulations.

  • nut

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Stainless steel spacer with hex male and female screws, including spring washers and small flat washers.

Stainless steel spacer with hex male and female screws, including spring washers and small flat washers.

Stainless Steel 303 Spacer with Hex Male and Female Screws, Includes Spring Washer and Small Flat Washer, Degreased

This is a hexagonal column spacer with a male thread on one side and a female thread on the other, incorporating a spring washer and a flat washer on the male thread side. The washer does not come off the screw, which eliminates the hassle of setting the washer and improves work efficiency. It has excellent chemical resistance and high strength. It is mainly used for fixing stacked electronic circuit boards. It is compliant with EU RoHS standards.

  • nut

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Iron special size flat seat washer (flat washer) / black baked finish

Iron special size flat seat washer (flat washer) / black baked finish

Outer diameter and thickness can be selected! Iron special-sized flat washers (flat washers) / black baked finish.

This is a "special-sized flat washer" series developed to allow a wide selection of outer diameter and thickness compared to conventional flat washers. It stabilizes the screw head when the hole diameter of the material being tightened is larger than the screw. By increasing the surface area of the screw head, it enhances the contact with the material. It is also referred to as a washer or flat washer. It is compliant with EU-RoHS standards.

  • nut

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Stainless Steel Special Size Flat Washer

Stainless Steel Special Size Flat Washer

Outer diameter and thickness can be selected! Stainless steel special flat washers (flat washers)

This is the "special-sized flat washer (flat washer)" series developed with a wide range of options for outer diameter and thickness compared to conventional flat washers. It can stabilize the screw head when the hole diameter of the material being tightened is larger than the screw. By increasing the surface area of the screw head, it enhances the contact with the material. It is also referred to as a washer or flat washer. It is compliant with EU-RoHS standards.

  • nut

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Stainless Steel 304 Custom Flat Washer (Flat Washer) / Black Coating Treatment

Stainless Steel 304 Custom Flat Washer (Flat Washer) / Black Coating Treatment

Outer diameter and thickness can be chosen! Stainless Steel 304 custom flat washers (flat washers) / black baked finish.

This is a "special size flat washer" series developed to allow a wide selection of outer diameter and thickness compared to conventional flat washers. It stabilizes the screw head when the hole diameter of the material being tightened is larger than the screw. By increasing the surface area of the screw head, it enhances the contact with the material. It is also referred to as a washer or flat washer. It is compliant with EU-RoHS standards.

  • nut

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Aluminum special-sized flat washer (flat washer)

Aluminum special-sized flat washer (flat washer)

Custom-sized flat washers (flat washers) made of aluminum with selectable outer diameter and thickness!

This is the "special-sized flat washer" series developed to allow a wide selection of outer diameter and thickness compared to conventional flat washers. When the hole diameter of the material being fastened is larger than that of the screw, it can stabilize the screw head. By increasing the surface area of the screw head, it enhances the contact with the material. It is also referred to as a washer or flat washer.

  • nut

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High-strength stainless steel disc spring washer - heavy load -

High-strength stainless steel disc spring washer - heavy load -

For preventing loosening of high-strength stainless steel!

High-strength fasteners made of stainless steel efficiently convert high input into spring action without waste, and reliably suppress loosening caused by initial settling or vibrations after fastening. They have high heat resistance and can be used in high-temperature environments of 350 to 370°C. Compared to conventional spring steel products, they can be used with confidence even in harsh environments where corrosion resistance is required.

  • 図2.png
  • bolt
  • nut
  • Spring

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Seal washer

Seal washer

Expect vibration damping and noise reduction effects! It demonstrates sufficient performance even when used directly on the surfaces of black steel and cast iron.

We handle "seal washers." This is a set product that incorporates a rubber packing into a metal-drawn bowl-shaped washer. The rubber packing is press-fitted onto the threaded part of the bolt, sealing the fluid at the side. The design minimizes rubber overflow even when tightened to the appropriate torque. We use SUS304, which is resistant to rust, as the standard material. 【Features】 ■ Suitable for preventing gas and liquid leakage ■ Passed pressure tests up to 200 atmospheres (20 MPa) ■ Demonstrates sufficient performance even when used directly on the surface of black steel and cast iron ■ Vibration damping and noise reduction 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.

  • nut

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Slack Prevention Bolt, Nut, Washer 'ActiveX'

Slack Prevention Bolt, Nut, Washer 'ActiveX'

Achieves a skirt shape that does not sag. It is reusable and can also reduce costs.

"ActiveX" is a bolt, nut, and washer that realizes high anti-loosening functionality with a simple shape, based on the concept of "absorbing the force that loosens screws." The spring effect generated by the elastic deformation of the skirt section absorbs vibrations and shocks, demonstrating its anti-loosening effect. According to the NAS3350 standard, vibration tests were conducted using JQA's high-speed screw loosening testing machine, resulting in a finding that it does not loosen for 17 minutes. 【Features】 ■ The spring effect generated by the elastic deformation of the skirt section absorbs vibrations and shocks. ■ Special shape for full contact of the seating surface. ■ Excellent reusability, allowing for cost reduction. ■ Passed vibration tests under the NAS3350 standard for 30,000 cycles (17 minutes). *For more details, please refer to the PDF document or feel free to contact us.

  • bolt

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