We have compiled a list of manufacturers, distributors, product information, reference prices, and rankings for Washer.
ipros is IPROS GMS ・ IPROS One of the largest technical database sites in Japan that collects information on.

Washer Product List and Ranking from 38 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. 東洋発條工業 Chiba//Machine elements and parts 本社
  4. サンワ・アイ Osaka//Manufacturing and processing contract
  5. 5 ウィルコ Kanagawa//Industrial Machinery
Go to Company Ranking

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. Toyo Spring Industrial Co., Ltd. Business Introduction 東洋発條工業 本社
  3. Flat seat gold 300HV 由良産商株式会社　特販部　特販課
  4. Backup washer for preventing supply rotation. ハイトーク/HYTORC ユネックス
  5. 4 Kobayashi Washer Manufacturing Co., Ltd. Company Profile 小林ワッシャー製作所

Washer Product List

46～60 item / All 83 items

Displayed results
Stainless Steel 304 Special Size Flat Washer

Stainless Steel 304 Special Size Flat Washer

Outer diameter and thickness can be selected! Stainless Steel 304 Custom Flat Washers (Flat Washers)

This is the "Special Size 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 that of 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

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration
Brass special size flat seat washer (flat washer)

Brass special size flat seat washer (flat washer)

Outer diameter and thickness can be selected! Brass custom flat washers (flat washers)

This is the "special-sized flat washer" series developed to allow for a wide selection of outer diameters and thicknesses compared to conventional flat washers. When the hole diameter of the material being fastened is larger than that of the screw, it stabilizes 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

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration
Flat seat gold 300HV

Flat seat gold 300HV

We respond to needs with mill sheets and inspection certificates! Please consider our proposal when estimating drawings with specification requirements.

This product is a flat washer with a hardness classification of 300HV. It prevents the nut or bolt head from sinking into the joined material. It can be used when the hole diameter is larger than the bolt diameter or to stabilize the seating surface. It meets needs with a mill certificate and inspection report. The material used is S45C to S55C (domestic material), and it has undergone bright hardening and tempering heat treatment. 【Features】 ■ JIS B1256:2008 ■ Standard shape / Component grade A ■ Marked with engraving ■ Hardness classification of 300HV ■ Comes with a mill certificate and inspection report *For more details, please refer to the PDF document or feel free to contact us.

  • 2020-12-23_09h46_30.png
  • Other machine elements

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration
Hexagonal hole plate spring washer "SUS CDW"

Hexagonal hole plate spring washer "SUS CDW"

The wedge-shaped serration effectively suppresses loosening rotation! Available for light and heavy loads.

The "SUS CDW" is a serrated hexagonal spring washer. It supports axial force with spring reaction due to its dish spring shape. The wedge-shaped serration effectively suppresses the rotation of loosening. It has a wedge shape that is less likely to damage the joined parts, is made of SUS304 for high heat resistance, and can be used in high-temperature environments. 【Features】 - Supports axial force with spring reaction due to dish spring shape - Effectively suppresses the rotation of loosening with wedge-shaped serration - Wedge shape that is less likely to damage the joined parts - High heat resistance with SUS304, usable in high-temperature environments - Material: S50C to S70C, SUP10; Hardness: 40 to 48 HRC *For more details, please refer to the PDF document or feel free to contact us.

  • image_02.png
  • image_03.png
  • image_04.png
  • image_06.png
  • image_05.png
  • image_08.png
  • Other machine elements

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration
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 proper torque! It seals the fluid at the sides.

At Sanwa Ai, 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. Designed to minimize rubber overflow even under proper torque tightening, we use SUS304, which is resistant to rust, as the standard material. The packing options available are NBR (standard specification), silicone, fluororubber, and EPDM. 【Features】 - Suitable for preventing gas and liquid leakage - Passed pressure test of 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 - 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

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration
Seal washer <capable of sealing fluids strongly>

Seal washer <capable of sealing fluids strongly>

Introducing a washer that deeply embeds the rubber packing into the threaded part of the bolt, providing a strong seal for fluids!

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 of 200 atmospheres (20 MPa) ■ Provides sufficient performance even when used directly on the surfaces of black steel and cast iron ■ Vibration damping and sound insulation 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

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration
Seal washer

Seal washer

Seal washers that can be selected based on the type of rubber for preventing liquid and gas leaks!

The "seal washer" has a rubber part that deeply penetrates the threaded section of the bolt, providing a strong seal against liquids and gases. It has high airtightness and does not require O-ring groove processing at the fastening part. Additionally, the type of rubber can be selected according to the application. 【Features】 ■ High airtightness ■ No additional processing required ■ Lineup according to application *For more details, please refer to the PDF document or feel free to contact us.

  • Sealing
  • nut
  • others

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration
Lock nut and washer 'Nut・Washer'

Lock nut and washer 'Nut・Washer'

Lock nuts are 100% tested for flaws! Introducing the lock nut and washer set.

The "Nut・Washer" is a set of lock nuts and washers that have been treated with a zinc plating on the surface. The lock nuts comply with DIN980-V (ISO7042), and the washers comply with DIN125 or DIN6916 (EN14399-T6). Additionally, we also offer the flanged nut "Collar Nut," which has been 100% tested for flaws. 【Features of DIN Lock Nut and Washer Set】 ■ Lock Nut: Complies with DIN980-V (ISO7042) ■ Washer: Complies with DIN125 or DIN6916 (EN14399-T6) ■ Lock Nut: 100% tested for flaws ■ Surface treated with zinc plating *For more details, please refer to the PDF document or feel free to contact us.

  • bolt
  • others
  • nut

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration
Washer Black Zinc Plating

Washer Black Zinc Plating

Looks authentic too! Washers used when tightening nuts and bolts.

The "Washer Black Zinc Plated" from Dairi is a component you would want to use when tightening nuts and bolts on materials like wood. It also gives a somewhat professional appearance. 【Features】 ■ Washer used when tightening nuts and bolts ■ Gives a professional look! *For more details, please feel free to contact us.

  • nut
  • bolt

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration
【技術資料】座金とは

【技術資料】座金とは

座面の保護、ゆるみ止めに好適なワッシャー！さまざまな種類の座金もご紹介。

「座金」は、カタカナでワッシャーとも言って、ボルトとナットを 締め付ける際にナットの下に入れて以下のような効果を発揮する製品です。 材料がやわらかい場合などに用いられる「平座金」をはじめ、ゆるみ止め 効果のある「ばね座金」や「歯付き座金」などさまざまな種類があります。 【座金の使用目的】 ■座面の保護 ・締結される部材にボルトがめり込まないようにする ■ゆるみ止め ・振動などによりボルトやナットがゆるまないようにする ■気密性の保持 ・気密性を保持するために銅やアルミ、ゴム、ポリカーボネードなどの 　材質も使用される ■絶縁 ・電気機器などにおいて絶縁が必要な場合には電気を通さない紙製や 　プラスチック製の座金が用いられる ※詳しくはPDF資料をご覧いただくか、お気軽にお問い合わせ下さい。

  • Other work tools

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration
Mountain seat gold, curved seat gold

Mountain seat gold, curved seat gold

We can accommodate various types of seat cushions, including special shapes!

We manufacture and sell construction brackets. They can be sourced from both domestic and international suppliers, and we can accommodate original shapes requested by users. From the perspective of stable supply, we also handle some inventory.

  • bolt
  • stainless
  • others

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration
FYZ8-FYZ24 Flat Seat Gold Super Tool

FYZ8-FYZ24 Flat Seat Gold Super Tool

FYZ8-FYZ24 Flat Seat Gold Super Tool

Flat Washer FYZ Super Tool - Material: S45C - Heat Treatment: Hardness HRC 35-45 - Finish: Black Oxide

  • Vice Clamps
  • Other work tools

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration
FTZ10-FTZ4.5 Free Seat Gold Super Tool

FTZ10-FTZ4.5 Free Seat Gold Super Tool

FTZ10-FTZ4.5 Free Seat Gold Super Tool

Uniclamp Adjustable Type Adjustable Washer FTZ Super Tool - Material: S55C - Heat Treatment: Quenching HRC 38-43 - Finish: Nickel Chrome Plating

  • nut
  • Vice Clamps

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration
Foot bolt/washers 'EA14/EA12'

Foot bolt/washers 'EA14/EA12'

Uses transparent and soft resin in the foot part! It does not stand out during installation and does not scratch the floor.

Introducing the foot bolt/washers 'EA14/EA12'. This product uses a transparent and soft resin for the foot part, which does not stand out during installation and does not damage the floor. The shaft is made of steel, and the foot is made of polyvinyl chloride. 【Features】 ■ Material - Shaft: Steel (SWRM) - Foot: Polyvinyl Chloride (PVC) - Washer: Steel (SPCC) ■ Finish - Shaft/Foot: Colored Chromate - Washer: Colored Chromate ■ Accessories: Washer *For more details, please refer to the PDF document or feel free to contact us.

  • bolt
  • nut
  • Other machine elements

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration
Spring-loaded square washer

Spring-loaded square washer

The integrated seat and spring washer improve work efficiency.

**Features** - Used for M12 bolts, anchor bolts, and wing bolts. - You can easily check if the nut has been forgotten to be tightened at a glance. **Product Description** - Material: JIS G 3131 (Hot-rolled mild steel plate and steel strip) SPHC or equivalent material t=4.5 - Surface treatment: JIS H 8610 (Electro-galvanized) Ep-Fe/Zn8/CM2 - Performance test: House Plus Confirmation Inspection Co., Ltd. HP15-KT025 *Note: Please install with the side that has the spring washer facing the nut.* Tags: Daidohant, washer, hardware, bolt, washer, wooden construction, architecture, building materials, construction *For more details, please refer to the PDF document or feel free to contact us.*

  • Other consumables

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Search Keywords Related to Washer

COPYRIGHT © 2001-2025 IPROS CORPORATION ALL RIGHTS RESERVED.