Washers（Unit of Purchase：Sold Individually (No Min. Purchase)）

Flat Washer (Single Item Sale)

MISUMI

[Materials] SPCC equivalent/SUS304 stainless steel[Surface treatment] Trivalent chromate JIS B 1256.

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2D / 3D

Spring Washers (Single Sale)

MISUMI

Sizes are from M2 to M24. Shipment from 1 pc. is available as needed.

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2D / 3D

Lock Washers ーNord-Lockー (Small O.D.)

MISUMI

Sizes are M3 to M12. Shipment from 1 pc. is available as needed.

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2D / 3D

Special-Sized Round Washer

SUNCO

[Materials] Stainless Steel, Aluminum, Brass[Surface treatment] None, trivalent chromate, bright chromate plating, zinc plating, chromate plating, nickel plating, chrome plating, Parkerizing, Dacrotized, painting, coating, silver/copper/tin plating

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Taper Washer

MISUMI

Sizes are M6 to M24. Shipment from 1 pc. is available as needed.

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2D / 3D

Spring Lock Washer No. 2

SUNCO

A portion of the flat washer is cut off, with a twisted shape. This twisted shape helps prevent loosening or falling if it is loosened. No. 2 is the most widely available type of spring washer.

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Nord-Lock Washer Delta Protection

NORDLOCK

The range of sizes has been greatly expanded from the range previously available from Misumi. Be sure to check out the lineup.

High-Strength Plain Washer - SWF

NABEYA BI-TECH

A plain washer for high-strength bolts. The surface on which the washers sit will not sink. These washers prevent bolts from loosening due to the surface on which they sit sinking etc.

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2D / 3D

Special Size Round Washer Steel, Standard Plating

SUNCO

[Features]·When the counterpart is wood, use a round washer with a large outer diameter for wood to prevent depressions[Material]・ steel[Standard Plating]·Bright chromate plating / trivalent white / nickel plating / chrome plating

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SUS316 Flat Washers

MISUMI

It has more excellent corrosion resistance than SUS304. Shipment from 1 pc. is available as needed.

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2D / 3D

Nord-Lock Washer SUS316L

NORDLOCK

The range of sizes has been greatly expanded from the range previously available from Misumi. Be sure to check out the lineup.

Wave Washer

OCHIAI

Generates a load by bending a flat washer into an arch-like shape. Obtain higher loads over bent washers.

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Wave Washer (for Bearing)

OCHIAI

Generates pressure with flat washers that have been bowed. Reduces vibration and noise by preloading the bearing.

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Tapered Washer 5° for Channels

SUNCO

Made by SUNCO. For channel steel. Type: beveled washer.

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Flat Washers (BJ743)

IMAO CORPORATION

Flat washer. Select from steel and stainless steel types.

CAD ：

2D / 3D

JIS Disc Spring Washer Type 1

HEIWA HATSUJYO

[Type (Application)] Spring Washer [Type] Spring Washer [Surface Treatment] (Detail) Tempering Color [Type]Spring Washer, Conical Spring Washer, Load[Type]No. 1 (for Light Loads), JIS Standard Type 1 [Materials] Stainless Steel [Surface Treatment] Trivalent Chromate, Chromate, Nickel Plating, Tempering Color [Nominal Thread (M)] 3 4 5 6 8 10 12 14 16 18 20 22 24 27 30 [Sales Unit] Individual (Available for Purchase as 1pc) Box and Packaging. [Materials]Steel S50C to S65C [Materials]Stainless Steel SUS304-CSP [Outer Diameter D (mm)] 7 9 10 12.5 17 21

Flat, Round Washer

SUNCO

[Type (application)] Plain Washer [Type] Plain Washer [Materials] Steel [Materials] Steel SPCC [Surface treatment] None, Trivalent chromate, Bright chromate plating, Zinc plating, Chromate plating, Nickel plating, Parkerizing[Nominal Thread (M)] 8 10 12 14 16 18 20 22 24 27 30 33 36 39 42 48 [Sales unit] Minimum Quantity (Available for Purchase from 1 pc) Box and Pkg. [Surface treatment](Details) None, Trivalent chromate, Trivalent black, Trivalent white, Bright chromate plating, Hot dip galvanizing, Chromate plating, Chromate plating, Green chromate, Black chromate, Nickel plating, Parkerizing[Outer diameter (mm)] 17 21 24 28 30 34 37

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JIS Compliant Round Washer Steel, Standard Plating

SUNCO

[Features]·When the counterpart is wood, use a round washer with a large outer diameter for wood to prevent depressions[Material]・ steel[Standard Plating]·Trivalent white / bright chromate plating / chrome plating / nickel plating / electroless nickel plating

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Tapered Washer, for 8° i-beams

SUNCO

For steel I beam. [Type (applications)]Plain washer "Type" beveled washer

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Round Washer JIS

SUNCO

[Materials] Steel, stainless steel, A1050, brass [Surface treatment] None, electroless nickel, trivalent chromate, bright chromate plating, zinc plating, chromate plating, nickel plating, chrome plating, parker, dacrotized, paint, coating, silver/copper/tin plating

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Steel Wave Washer (Bearings)(Iwata Standard)

IWATA DENKO

Its superior abrasion resistance compared with other carbon steels makes it optimal for preloading a variety of bearings and spring applications with small loads.

Washers for Ornamental Screw

MISUMI

Sizes are M3 to M6. Shipment from 1 pc. is available as needed.

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2D / 3D

Wave Washer

TAIYO STAINLESS SPRING

Stable and gradual loading prevents loosening and rattling. *The CAD data for this series is undergoing revision. This will be available as soon as modifications are complete.

Disk Spring Washers

MISUMI

Sizes are M4 to M12. Shipment from 1 pc. is available as needed.

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2D / 3D

Circular Washer JIS Small

SUNCO

[Materials] Steel, Stainless steel, Titanium, Brass [Surface treatment] None, trivalent chromate, bright chromate plating, zinc plating, chromate plating, nickel plating, chrome plating, Parkerizing, painting, coating

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C Type Spherical Washer

SUNCO

[Type (application)] Special[Shape][Type] Spherical Washer [Surface treatment] None [Sales unit] Minimum Quantity (Available for Purchase from 1 pc) [Surface treatment](Details) none [Materials] Steel, Stainless steel [Inner diameter d (mm)] 6.4 8.4 10.5 13 15 17 21 25 31 37 43 50 58 66 [Nominal Thread (M)] 6 8 10 12 14 16 20 24 30 33 36 42 48 56 64 [Thickness t (mm)] 2.3 3.2 4 4.6 5 5.3 6.3 8.2 11.2 14 17 21 23 27 [Materials]Steel SPCC [Materials] Stainless Steel SUS304[Outer diameter (mm)] 12 17 21 24 28 30

Spring Washers/Conical Disk

MISUMI

Sizes are M3 to M24. Shipment from 1 pc. is available as needed.

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2D / 3D

Steel Wave Washer (Iwata Standard)

IWATA DENKO

Its superior abrasion resistance compared with other carbon steels makes it optimal for preloading a variety of bearings and spring applications with small loads.

SUS316 Spring Washers

MISUMI

It has more excellent corrosion resistance than SUS304. Shipment from 1 pc. is available as needed.

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CAD ：

2D / 3D

Washer (Inch Thread) - SWAS

NABEYA BI-TECH

A washer for unified thread hex nuts. Use in combination with hexagonal bolts and hexagonal button bolts.

CAD ：

2D / 3D

Swing C Washers (SW)

IMAO CORPORATION

A hook-type washer with high operability. [Features]· Washers can be attached and removed quickly.· Shoulder bolt for fixing to the body included. [Applications]· Prevent loosening of bolts.· Protection of metal surfaces.

CAD ：

2D / 3D

Bezel Washer - SWBS

NABEYA BI-TECH

Flat head screw washer. Provides an attractive finish to the surface it mounts to.

CAD ：

2D / 3D

Spherical Washer (BJ742)

IMAO CORPORATION

Standard spherical washer. [Features]· Steel spherical washer.· Provides stable tightening without being affected by parallelism of workpieces, bolts, etc. [Applications]· Can be used as a washer for adjustment when the seating surfaces of the mating member and the bolt do not adhere.

CAD ：

2D / 3D

Bent Washer

OCHIAI

A flat washer bent into an arch shape. [Features]· A flat washer bent into an arch shape that generates load through bending. · Type: spring washer. [Applications]· Ideal for preventing loosening of screws.

Ribbed-Lock Washer - SWR

NABEYA BI-TECH

[Features]· The ribs on both faces of the washer bite into the surface on which the bolt sits and the fastened part, preventing loosening caused by vibrations.· For preventing the loosening of fastened parts that adhesives proved insufficient for achieving.· When combined with an 8.8 strength classification bolt, even more effective loosening prevention is possible.· Also works with strength classification 12.9 bolts.· Has a greater loosening prevention effect than normal spring washers.

CAD ：

2D / 3D

Spring Washer for Cap

HEIWA HATSUJYO

[Materials] Stainless Steel [Surface Treatment] Anti-Rust Oil Only, Trivalent Chromate, Chromate, Nickel Plating, Tempering Color [Inner diameter d (mm)] 2.1 2.4 2.7 3.1 4.1 5.1 6.1 6.5 8.2 10.2 11.4 12.2 13 14.2 16.2 18.2 20.2 22.5 24.5 [Nominal Thread (M)] 2 2.3 2.6 3 4 5 6 8 10 12 14 16 18 20 22 24 [Thread (inch)] 1/4 7/16 1/2 [Thickness t (mm)] 0.5 0.6 0.7 1 1.3 1.5

Nord-Lock Washer 254SMO

NORDLOCK

Offers superior corrosion resistance and resistance to pitting corrosion when compared to normal stainless steel.[Features]· 254 SMO®, made with high-quality austenitic stainless steel (EN 1.4547), has superior mechanical strength and rust resistance compared to most other austenitic stainless steels.· This material contains high amount of chrome, nickel, molybdenum, and nitrogen, delivering resistance to hole corrosion and gap corrosion.· Nord-Lock 254 SMO® washers are designed for environments containing high levels of chloride and aqueous salt solution that EN 1.4404 stainless steel washers cannot handle.

S45C High-Strength Round Washer

SUNCO

[Type (application)] Plain Washer [Type] Plain Washer [Materials] Steel [Surface treatment] None [Sales unit] Minimum Quantity (Available for Purchase from 1 pc) [Materials]Steel S45C [Surface treatment](Details) none [Inner diameter d (mm)] 10 13 17 21 23 25 28 31 [Nominal Thread (M)] 10 13 17 21 23 25 28 31 [Thickness t (mm)] 3.2 4.5 6 8 [Outer diameter (mm)] 22 26 32 40 44 48 56 60

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Spring Washer No. 2, Special-Sized

TOKYO METAL

We offer products from M0.5 to M200.

JIS Toothed Lock Washer

HEIWA HATSUJYO

[Applications]·Internal Teeth Profile: It is used in inconvenient places such as set screws where teeth appear.·Outside Tooth Profile: It is used in places where more loosening prevention than the internal tooth profile is required.

Disk Spring Lock Washer for Hex Socket Head Bolt (for Heavy Loads)

HEIWA HATSUJYO

[Features]·Heiwa Spring original product·Disc spring washer specially designed for hexagon socket head cap bolts (cap bolts)·Due to the large spring action, the axial force of the screw is sufficiently maintained.·Since the axial force of the bolt is evenly supported around the bearing surface, no bending moment acts on the bolt.·The method of use is the same as the JIS disk spring washer (2 types), but the CDW has serrations on the front and back, which further enhances the locking effect.·There are no burrs on the inner and outer circumferences, so the burden of local stress can be reduced.

Disk Spring Lock Washer, JIS B 1251, Class 2 (for Caps, for Heavy Loads)

HEIWA HATSUJYO

Screw has a spring counter-force when compared to the tightening axial force of bolts. The spring prevents thread loosening caused by vibration and shock. It is possible to obtain a stable tightening axial force without causing fatigue to the tightening material as a result of the low pressure applied to the bearing surface.

Dome Washer with Aperture

SUNCO

Resembles a press-made rosette washer, but has a simple bulging shape that adds no thickness when installed.

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