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Washer Product List and Ranking from 36 Manufacturers, Suppliers and Companies | IPROS GMS

Last Updated： Aggregation Period:Sep 23, 2026～Oct 20, 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 23, 2026～Oct 20, 2026
This ranking is based on the number of page views on our site.

  1. OHTA CO., LTD. Tokyo//Machine elements and parts
  2. 特殊発條興業 (トクハツ) Hyogo//Machine elements and parts
  3. ウィルコ Kanagawa//Industrial Machinery
  4. 4 null/null
  5. 5 由良産商株式会社　特販部　特販課 Osaka//Machine elements and parts
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Washer Product ranking

Last Updated： Aggregation Period:Sep 23, 2026～Oct 20, 2026
This ranking is based on the number of page views on our site.

  1. Basic Knowledge of Screw Products: What are the differences between the old JIS and new JIS for flat washers? OHTA CO., LTD.
  2. Spac, SPAK, waveform spring washer, super lock washer, SLW 特殊発條興業 (トクハツ)
  3. Disc spring / washer
  4. 4 Kobayashi Washer Manufacturing Co., Ltd. Company Profile 小林ワッシャー製作所
  5. 5 YOSHER Locking Washer 東京メタル

Washer Product List

31～60 item / All 85 items

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Farewell spring washer, spring washer JIS B1251 equivalent to Type 1 and Type 2.

Farewell spring washer, spring washer JIS B1251 equivalent to Type 1 and Type 2.

Farewell spring washer, spring washer JIS B1251 equivalent to type 1 and type 2, for screw and bolt manufacturers, with agents available, custom sizes can also be accommodated.

Goodbye spring washers, spring washers equivalent to JIS B1251 Type 1 and Type 2, special sizes also available. For screw and bolt manufacturers, spring washers equivalent to JIS B1251 Type 1 and Type 2, with agents available, special sizes (high precision, improved flatness, surface roughness) also available. *For more details, please refer to the catalog or feel free to contact us.

  • Spring
  • Axle parts
  • Other Auto Parts
  • Washer

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Cost reduction by converting "forged + machined" parts to "stamped processing"!

Cost reduction by converting "forged + machined" parts to "stamped processing"!

Through VA proposals by changing construction methods, we have achieved a 30% cost reduction while reducing sag! *Case studies available as a gift.

In conventional press processing, such as bar rolling, significant thinning occurs in the drawn parts. At Tokuhatsu, we have reduced thinning by controlling the flow of material during the pressing process. At Tokuhatsu, we can help solve the following concerns: - Securing seating area: We want to maximize the seating area to reduce surface pressure. - High precision is required for the bar rolling diameter. - Costs are increasing due to forging and cutting. *For more details, please refer to our catalog or feel free to contact us.*

  • Axle parts
  • Washer

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Toyo Spring Industrial Co., Ltd. Business Introduction

Toyo Spring Industrial Co., Ltd. Business Introduction

To respond to the accumulation of years of technology and the needs of a high-quality, advanced technological society!

Toyo Spring Co., Ltd. is a parts manufacturer that mainly handles thousands of types of components such as spring washers, wire springs, leaf springs, ultra-precision pressed parts, and other parts that meet the demands of the times. Thanks to our product technology, various products are quickly and cost-effectively delivered to the market with peace of mind under state-of-the-art equipment, supplying a wide range of fields including automobiles, construction machinery, semiconductors, and electronic devices. 【Products Offered】 ■ Washers ■ Thin plate springs ■ Coil springs ■ Precision pressing ■ Composite products, etc. *For more details, please download the PDF or contact us.

  • Other machine elements
  • Contract manufacturing
  • Spring
  • Washer

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Doesn't loosen! Follows closely! Rust-resistant! Seismic-resistant washer for outdoor use, Titanik.

Doesn't loosen! Follows closely! Rust-resistant! Seismic-resistant washer for outdoor use, Titanik.

A new rust-resistant type of Tightonic that is strong against rust has been released! It can now be used for equipment and structures used outdoors!

Features of Rust-Resistant Type Taitonic This is a new type of Taitonic that inherits the excellent performance of "not loosening" and "following" from previous models, with a rust-resistant finish. It is strong against vibrations and can withstand significant force with low torque tightening. The magic ring utilizes the principle of a wedge to tighten the bolt, demonstrating a powerful anti-loosening effect. It does not loosen even with the aging shrinkage of materials like wood. The Taitonic with rust-resistant treatment features an environmentally friendly, completely chrome-free plating process. 【Features】 ■ Suitable for outdoor use ■ Follows wood shrinkage during tightening ■ Converts vibrations into tightening force with the magic ring ■ Withstands significant force with low torque tightening 【Outdoor Applications】 Fixing outdoor benches and louvers Securing connections in outdoor facilities Fixing equipment installed outdoors that generates vibrations Securing connections that undergo aging shrinkage 【Other Applications】 - Benches and fences (vibration suppression/fixing) - Structures exposed to rain (fixing joints) - Livestock facilities (fixing joints in cow and pig barns, etc.) - Playground equipment (fixing tightening hardware) *For more details, please feel free to contact us.

  • stainless
  • Washer

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For connecting and securing metal and wood, use a tightonic that is non-loosening and rust-resistant.

For connecting and securing metal and wood, use a tightonic that is non-loosening and rust-resistant.

A rust-resistant type of the widely recognized non-loosening washer "Titanic" for seismic-resistant applications in the housing sector is now available for M8 bolts!

Features of Rust-Resistant Type Taitonic This is a new type of Taitonic that inherits the excellent performance of "not loosening" and "following" while being treated for rust resistance. It is strong against vibrations and can withstand significant force with low torque tightening. The patented Magic Ring utilizes the principle of a wedge to tighten bolts, providing a powerful anti-loosening effect. Newly developed for M8 bolts for metal and wood! In the case of wood, it follows the natural shrinkage of the material. The rust-resistant Taitonic is environmentally friendly, featuring a completely chrome-free plating process. 【Features】 ■ Can be used for metal connections! ■ Suitable for outdoor use ■ Tightens while following the shrinkage of wood ■ Converts vibrations into tightening force with patented technology ■ Withstands significant force with low torque tightening 【Applications】 Connection and fixation of structures Vibration countermeasures for machine tools Fixing of ship lighting fixtures Fixing of connections in outdoor facilities Fixing of equipment installed outdoors that generates vibrations Fixing of connections in wood that shrinks over time 【Other Applications】 - Benches and fences (vibration suppression/fixing) - Structures exposed to rain (fixing of joints) *For more details, please feel free to contact us.

  • stainless
  • bolt
  • Other machine elements
  • Washer

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High strength bolt, nut, washer

High strength bolt, nut, washer

High Strength Bolt, Nut, Washer

Construction high-strength bolts, nuts, washers - 20,000 tons/year production capacity HIGH STRENGTH BOLT, NUT, WASHER TORQUE SHEAR BOLT, NUT, WASHER HEX CAP SCREW (CLASS 4.6, 8.8, 10.9, 12.9) HEX NUT (CLASS 8, 10, 12) Heavy-duty truck bolts, nuts - 10,000 tons/year production capacity

  • bolt
  • nut
  • Washer

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Water leak prevention washer

Water leak prevention washer

Strongly bonded with metal and rubber through vulcanization! Sizes available from M1 to M20.

In fastening, there are many cases where the flexibility and adhesion of rubber are utilized to provide sealing or cushioning functions. However, since rubber alone cannot maintain strength, backup and holding power from metal washers are necessary, which affects cost performance. The "Leak-Proof Washer" has a strong adhesive force due to the vulcanized bonding of metal and rubber, resulting in minimal rubber escape during fastening. This prevents rubber from being caught in the threaded part, maintaining high sealing performance, as well as providing various functions such as vibration resistance, loosening prevention, shock absorption, surface scratch prevention, and insulation. Additionally, in relation to this product, Azuma Screw also offers "Leak-Proof Screws (Nuts)." 【Features】 ■ Strong adhesion of metal and rubber through vulcanized bonding ■ Material: Metal part (stainless steel), rubber part (neoprene, EPDM, etc.) ■ Size: M1 to M20 *For more details, please refer to the PDF document or feel free to contact us.

  • bolt
  • nut
  • Washer

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Stainless steel + small pot screws with spring washers and nylon washers.

Stainless steel + small pot screws with spring washers and nylon washers.

Stainless steel + small pot screws with spring washers and nylon washers.

This is a pan head screw incorporating a nylon 66 set washer (NNS series). It prevents the washer from falling off when the screw is removed, thereby reducing the workload during assembly. The washer has excellent abrasion resistance, oil resistance, and gas barrier properties. It is compliant with EU RoHS standards.

  • bolt
  • Washer

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Stainless steel + hexagon upset bolt with spring washer and large flat washer included.

Stainless steel + hexagon upset bolt with spring washer and large flat washer included.

Stainless steel + hexagon upset bolt with spring washer and large flat washer included.

The head has a hexagonal shape with a cross hole. It can be tightened using either a screwdriver, spanner, or wrench. The washer does not come off the screw, which eliminates the hassle 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
  • Washer

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Stainless steel flat washer

Stainless steel flat washer

Stainless steel flat washer

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, the adhesion to the material can be enhanced. It is also referred to as a washer or flat washer. It is compliant with EU-RoHS standards.

  • nut
  • Washer

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Stainless Steel 316 Flat Washer

Stainless Steel 316 Flat Washer

Stainless Steel 316 Flat Washer

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, the adhesion to the material can be enhanced. It is also referred to as a washer or flat washer. It is compliant with EU-RoHS standards.

  • nut
  • Washer

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Stainless Steel 316L Spring Washer No. 2

Stainless Steel 316L Spring Washer No. 2

Stainless Steel 316L Spring Washer No. 2

This is a general-purpose (Type 2) JIS standard product. It is said that the spring washer's tendency to expand creates 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 standards.

  • nut
  • Washer

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Titanium flat washer

Titanium flat washer

Titanium flat washer

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. It is compliant with EU-RoHS standards.

  • nut
  • Washer

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Titanium spring washer

Titanium spring washer

Titanium spring washer

This is a general-purpose (No. 2) JIS standard product. It is said that the spring washer's tendency to expand creates a repulsive force that presses the screw head and the counterpart material together, making it difficult for the screw and nut to come loose. It is also referred to as a spring washer. It is compliant with EU-RoHS standards.

  • nut
  • Washer

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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
  • Washer

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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
  • Washer

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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.

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  • Other machine elements
  • Washer

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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.

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  • Other machine elements
  • Washer

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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
  • Washer

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【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
  • Washer

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Hex Nut and Flat Washer 'SHN-GJ/SWA-F-GJ'

Hex Nut and Flat Washer 'SHN-GJ/SWA-F-GJ'

Prevent corrosion caused by the adhesion of water droplets and other substances when the materials of the screw and the counterpart differ!

We would like to introduce our hex nuts and flat washers with dissimilar metal contact corrosion prevention treatment, 'SHN-GJ/SWA-F-GJ'. The surface treatment reduces electrical conductivity and suppresses the galvanic action between dissimilar metals that causes corrosion. It is suitable for securing aluminum components used outdoors. Additionally, we also offer hex bolts with dissimilar metal contact corrosion prevention treatment, 'SNH-GJ'. Please feel free to contact us for inquiries. 【Product Lineup (Partial)】 ■SHN-M5-GJ ■SHN-M6-GJ ■SHN-M8-GJ ■SHN-M10-GJ ■SHN-M12-GJ ■SHN-M16-GJ *For more details, please download the PDF or feel free to contact us.

  • nut
  • Washer

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Olympia slide hinge long hole type washer

Olympia slide hinge long hole type washer

Increased adjustment amount, improved workability!

Vertical adjustment (±3mm), horizontal adjustment (±2mm) Thickness: 0mm (standard thickness) When using inset specifications, the H dimension will be door thickness + 42mm. When using GH-360FP, the thickness will be +44mm.

  • Other machine elements
  • Washer

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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
  • Washer

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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
  • Washer

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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
  • Washer

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TFW063 Toggle clamp parts (washer), Super Tool

TFW063 Toggle clamp parts (washer), Super Tool

TFW063 Toggle clamp parts (washer), Super Tool

Parts for toggle clamps Super Tool Washer TFW063 ● This is a part for toggle clamps. ● The material of STFW062 is SUS304.

  • Vice Clamps
  • Processing Jig
  • Other work tools
  • Washer

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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
  • Washer

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Shibori Seat

Shibori Seat

It is a washer that fits the shape of metal roofs such as folded plate roofs and has good compatibility with packing.

It is a washer that fits the shape of metal roofs such as folded plate roofs and has good compatibility with packing. *For more details, please download the catalog or feel free to contact us.*

  • bolt
  • Washer

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News Strong Spherical Washer

News Strong Spherical Washer

You can cushion the clamp and nut. Even if the clamp is inclined, it can be tightened with the nut.

Please set it between the clamp and the nut for use.

  • Other cutting tools
  • Washer

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External insulation fixed thin plate packing washer "Tsumepita"

External insulation fixed thin plate packing washer "Tsumepita"

Introducing washers that stop firmly in place due to their notches for external insulation installation.

"Tsume Pita" is a thin plate fastening washer for external insulation materials that can securely fix insulation materials. It is a special washer with "tsume" attached to a thin steel plate, which stays firmly in place when inserted into foam plastic insulation, making it easy to drive in screws or nails, and securely fix the insulation. 【Features】 ■ Can securely fix insulation materials ■ Special washer with "tsume" attached ■ Stays firmly in place when inserted into foam plastic insulation ■ Easy to drive in screws or nails *For more details, please refer to the PDF document or feel free to contact us.

  • Other consumables
  • Washer

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