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Metric General Purpose Washers
Use these metric washers to evenly distribute the load under bolt or screw heads and nuts when fastening. They can also act as spacers.
Stainless steel washers are more corrosion resistant than steel washers, and almost as strong. 18-8 and 17-7 PH stainless steel washers will hold up in humid, damp, and washdown environments, but will corrode if exposed to salt water or chemicals. 17-7 PH stainless steel washers are stronger than 18-8 stainless steel. More corrosion resistant than 18-8 and 17-7 PH stainless steel, 316 stainless steel washers will not corrode from salt water, chlorine solutions, and chemicals.
Steel washers are stronger and more wear resistant than stainless steel washers. Steel washers without a plating or coating are best for dry environments, since moisture will cause them to rust. Zinc- and zinc yellow-chromate plated steel washers have an outer layer of zinc that protects the inner steel from rust and extends the life of the washer. Although they are stronger and more wear resistant than stainless steel, they are not as corrosion resistant. Use them in wet environments, but avoid contact with salt water and chemicals.
Washers that meet ISO 7089, 7090, 7091, and 7092 (formerly DIN 125, 126, and 433), meet international standards for fastener dimensions. The ISO 7091 washers have a slightly rougher surface than a typical flat washer.
For technical drawings and 3-D models, click on a part number.
| For Screw Size  | ID, mm | OD, mm | Thickness, mm | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| M22 | 23.0 | 39.0 | 2.7-3.3 | Rockwell B75 | DIN 125; ISO 7089 | 1 | 000000000 | 00000 |
316 Stainless Steel | ||||||||
| M22 | 23.0 | 39.0 | 2.7-3.3 | Rockwell B75 | DIN 125 | 5 | 000000000 | 0000 |
Steel | ||||||||
| M22 | 24.0 | 39.0 | 2.4-3.6 | Rockwell B52 | DIN 126; ISO 7091 | 10 | 000000000 | 00000 |
Black-Oxide Steel | ||||||||
| M22 | 23.0 | 39.0 | 2.7-3.3 | Not Rated | DIN 125; ISO 7089 | 5 | 000000000 | 0000 |
Zinc-Plated Grade 5 Steel | ||||||||
| M22 | 23.0 | 39.0 | 2.7-3.3 | Not Rated | DIN 125; ISO 7089 | 5 | 000000000 | 00000 |
Zinc-Plated Grade 8 Steel | ||||||||
| M22 | 23.0 | 39.0 | 2.7-3.3 | Rockwell C38 | DIN 125; ISO 7089 | 5 | 000000000 | 0000 |
Zinc Yellow-Chromate Plated Grade 8 Steel | ||||||||
| M22 | 23.0 | 39.0 | 2.7-3.3 | Rockwell C38 | DIN 125; ISO 7089 | 5 | 000000000 | 0000 |
Zinc Yellow-Chromate Plated Class 12.9 Steel | ||||||||
| M22 | 23.0 | 39.0 | 2.7-3.3 | Rockwell C15 | DIN 125; ISO 7089 | 25 | 000000000 | 0000 |
Metric Oversized Washers
Compared to our general purpose washers, these have exaggerated diameters and/or thicknesses. Use them to cover oversized holes, hold heavy fastening loads, or as spacers and levelers.
Plain steel washers are stronger, more wear resistant, and less costly than zinc-plated steel and stainless steel washers. They should not be used in wet or corrosive environments because they easily rust. Zinc-plated steel washers have an outer layer of zinc that prevents the steel from rusting in wet areas. Compared to stainless steel, they're stronger, more wear resistant, and less costly, but not as corrosion resistant. Avoid exposing them to salt water and chemicals. Stainless steel washers are more corrosion resistant than steel washers, and almost as strong. Use them in damp and washdown applications without worrying about rust. 18-8 stainless steel and 17-7 PH stainless steel washers have similar qualities to one another, except 17-7 PH stainless steel washers are stronger.
Washers that meet DIN and ISO specifications meet international standards for washer dimensions. ISO 8738 is formerly DIN 1440. ISO 7093 is formerly DIN 9021. Washers that meet DIN 1440 are also known as shaft washers and washers for clevis pins.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID, mm | OD, mm | Thick., mm | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| M22 | 22.0 | 34.0 | 3.7-4.3 | Rockwell B76 | DIN 1440, ISO 8738 | 10 | 000000000 | 000000 |
| M22 | 24.0 | 80.0 | 5.0-7.0 | Rockwell B50 | DIN 440-R | 1 | 000000000 | 0000 |
Zinc-Plated Steel | ||||||||
| M22 | 23.0 | 50.0 | 7.0-9.0 | Rockwell B76 | DIN 7349 | 5 | 000000000 | 00000 |
18-8 Stainless Steel | ||||||||
| M22 | 23.0 | 50.0 | 7.0-8.0 | Not Rated | DIN 7349 | 1 | 000000000 | 0000 |
Tension-Indicating Washers for Structural Applications
When you’ve applied the correct tension, these washers release an orange dye as a visual indicator.
Class 8.8 washers are designed to support structural screws, studs, and nuts. Use them with DIN 6914 structural hex head bolts and DIN 6915 structural hex nuts. They have a galvanized finish, so they are ten times as corrosion resistant as zinc-plated steel washers. Since they are strong and rust resistant, these washers are often used for construction and on building exteriors.
Class 10.9 washers are stronger than Class 8.8 washers. They have a zinc-plated finish, so they won’t rust in wet environments.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
Galvanized Class 8.8 Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
ASME B18.2.6M/ASTM F959 | ||||||||
| M22 | 23.000mm | 42.900mm | 3.600mm-6.000mm | Rockwell C37 | ASME B18.2.6M; ASTM F959 | 5 | 000000000 | 000000 |
Zinc-Plated Class 10.9 Steel | ||||||||
ASME B18.2.6M/ASTM F959 | ||||||||
| M22 | 23.000mm | 42.900mm | 3.600mm-6.000mm | Rockwell C37 | ASME B18.2.6M; ASTM F959 | 1 | 000000000 | 0000 |
Metric Washers for Structural Applications
These thick washers are designed to support structural screws, studs, and nuts. They meet ISO 7416 (formerly DIN 6916), which is an international standard for washer dimensions. Use them with DIN 6914 structural hex head bolts and DIN 6915 structural hex nuts.
Black steel washers are mildly corrosion resistant in dry environments.
Hot-dipped galvanized steel washers have a thick coating that holds up ten times better than zinc plating in wet environments. Since they are strong and rust resistant, these washers are often used for construction and on building exteriors.
For technical drawings and 3-D models, click on a part number.
Metric Chemical-Resistant Plastic Washers
These washers surpass most other plastic washers when it comes to withstanding chemicals, oil, and grease. All are excellent electrical insulators.
PVC washers resist acids and alkalies.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID, mm | OD, mm | Thick., mm | Max. Temperature, °F | Hardness | Color | Pkg. Qty. | Pkg. | |
PVC Plastic | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| M22 | 23.0 | 40.0 | 1.3-1.7 | 140° | Rockwell D65 | Gray | 5 | 000000000 | 000000 |
Square Washers
Square washers fit into slots and channels and have flat sides to keep them from rotating. They are wider and thicker than most round washers, making them good for distributing heavy loads.
18-8 stainless steel washers have good chemical resistance and may be mildly magnetic.
Black-oxide steel washers are mildly corrosion resistant in dry environments.
Galvanized steel washers are 10 times as corrosion resistant as zinc-plated steel washers.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | Wd. | Thick. | Hardness | Each | |
| M22 | 28.000mm | 50.000mm | 6.000mm | Rockwell B84 | 000000000 | 000000 |
| For Screw Size | ID | Wd. | Thick. | Hardness | Each | |
| M22 | 28.000mm | 50.000mm | 6.000mm | Rockwell 15N80 | 000000000 | 00000 |
| For Screw Size | ID | Wd. | Thick. | Hardness | Each | |
| M22 | 28.000mm | 50.000mm | 6.000mm | Rockwell B40 | 000000000 | 000000 |
Metric Split Lock Washers
As a screw is tightened, these metric washers flatten to add tension to the joint, counteracting fatigue around the joint from small amounts of vibration. This makes them a common choice to prevent fasteners from loosening. However, they resist the least amount of vibration compared to other locking washers. They meet a DIN or ASME standard for split lock washer dimensions.
Standard split lock washers have a left-hand helix that have right-hand threads to prevent clockwise rotation. They have uneven split ends that bite into fasteners for a tight grip but won’t work with hardened surfaces. They hold better than curved or wave washers. These washers are not reusable after tightening.
Curved and wave split lock washers can be used with fasteners that have right- or left-hand threads to prevent clockwise and counterclockwise rotation. These washers are reusable—they retain their shape when untightened and will not damage fasteners. Wave washers touch fasteners at more points, so they grip tighter than curved washers. Their shape also compensates for uneven surfaces and tolerance variations.
Stainless steel washers resist corrosion better than steel and are nearly as strong. 18-8 stainless steel washers withstand humid, damp, and washdown environments but will corrode when exposed to salt water and other chlorine solutions.
Stronger and more durable than stainless steel, steel washers plated with zinc or galvanized withstand varying degrees of corrosion. Zinc-plated steel and zinc yellow-chromate plated steel washers withstand wet environments. However, they will corrode in salt water and chlorine solutions. The zinc plating temporarily protects against rust, but once it wears off, the steel will rust.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID, mm | OD, mm | Thick., mm | Overall Ht., mm | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Standard | |||||||||
| M22 | 22.5 | 35.9 | 3.8-4.2 | __ | Not Rated | DIN 127B | 5 | 000000000 | 00000 |
Curved | |||||||||
| M22 | 22.5 | 35.9 | 3.0 | 5.1 | Not Rated | DIN 128A | 5 | 000000000 | 00000 |
Zinc-Plated Steel | |||||||||
Standard | |||||||||
| M22 | 22.5 | 35.9 | 3.8-4.2 | __ | Rockwell C44 | DIN 127B | 10 | 000000000 | 00000 |
Curved | |||||||||
| M22 | 22.5 | 35.9 | 3.0 | 5.1 | Rockwell C44 | DIN 128A | 10 | 000000000 | 00000 |
Wave | |||||||||
| M22 | 22.5 | 35.9 | 3.0 | 5.1 | Rockwell C44 | DIN 128B | 5 | 000000000 | 0000 |
Metric Split Lock Washers for Socket Head Screws
Also known as high-collar lock washers, these metric washers have smaller outside diameters than standard split lock washers to fit neatly under socket head cap screws. As the screw is tightened, these washers flatten to add tension to the joint. They counteract fatigue around the joint from small amounts of vibration, making them a common choice to prevent fasteners from loosening. However, they resist the least amount of vibration compared to other locking washers.
These washers are compatible with fasteners that have right-hand threads to prevent clockwise rotation. The uneven split ends bite into fasteners for a tight grip, but they won’t work with hardened surfaces. These washers hold better than curved or wave washers. They are not reusable after tightening.
316 stainless steel washers have excellent resistance to chemicals and salt water. They may be mildly magnetic.
18-8 stainless steel washers have good chemical resistance and may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
Metric External-Tooth Lock Washers
Teeth on the outside edge of these washers bite into the screw head and joint for a tight grip. Use with fasteners that have heads large enough to make contact with the teeth, such as pan, button, and binding head screws.
Zinc-plated steel washers are corrosion resistant in wet environments.
18-8 stainless steel washers have good chemical resistance and may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
Metric Internal-Tooth Lock Washers
Internal teeth dig into the screw head while the smooth outside edge won't snag objects. These washers provide greater vibration resistance than split lock washers. Use with fasteners that have small heads, such as fillister and cheese head screws.
18-8 stainless steel washers have good chemical resistance and may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID, mm | OD, mm | Thick., mm | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| M22 | 23.0 | 36.0 | 1.3-1.6 | Not Rated | DIN 6797 | 10 | 000000000 | 00000 |
Belleville Spring Lock Washers for Socket Head Screws
These washers have smaller outside diameters than standard spring lock washers to fit neatly under socket head cap screws. Also known as conical washers, these have a slightly cupped shape that gives them spring-like flexibility to grip tighter than split and tooth lock washers. They minimize loosening from wear, temperature changes, and vibration. Serrations on the top and bottom provide extra gripping power. Load-rated Belleville disc springs are also available.
Zinc-plated steel washers are corrosion resistant in wet environments.
18-8 stainless steel washers have good chemical resistance and may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
Spring Lock Washers for Slotted Bearing Nuts
Designed for use with bearing nuts, these lock washers have a conical shape that presses like a spring against bearings, bushings, gears, and pulleys to hold them in place on your threaded shaft or spindle. They also have an inner tab that sits in the shaft or spindle’s keyway to prevent the nut from loosening.
Steel washers are strong and flexible.
DIN 462 and DIN 5406 washers meet international standards for lock washer dimensions. Pair DIN 462 washers with DIN 1804 bearing nuts, and DIN 5406 washers with DIN 981 bearing nuts.
For technical drawings and 3-D models, click on a part number.
Tab | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For Screw Size | ID, mm | OD, mm | Thick., mm | Wd., mm | Dp., mm | Overall Ht., mm | Hardness | Specifications Met | For Bearing Nut Specifications Met | Each | |
Steel | |||||||||||
For Stepped Nuts | |||||||||||
| M22 | 22.000 | 40.000 | 1.000 | 6.000 | 2.500 | 4.000 | Not Rated | DIN 462 | DIN 1804 | 000000000 | 00000 |
Wedge Lock Washers
These two-piece washers provide more locking power than split, tooth, and spring lock washers. Wedges on the inside lock the two pieces together, and serrations on the exterior grip surfaces to resist loosening from high vibration and shifting. Washers are reusable.
316 stainless steel washers have excellent resistance to chemicals and salt water. They may be mildly magnetic.
Zinc-flake-coated steel washers are corrosion resistant in wet environments.
316 stainless steel and zinc-flake-coated steel washers are comparable to NORD-LOCK® Series washers.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Washer Type | Hardness | Heat Treatment | Pkg. Qty. | Pkg. | |
316 Stainless Steel | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 7/8", M22 | 0.920" | 1.360" | 0.120"-0.140" | Wedge Lock | Rockwell C51 | Case Hardened | 1 | 000000000 | 000000 |
| 7/8", M22 | 0.920" | 1.650" | 0.120"-0.140" | Wedge Lock | Rockwell C51 | Case Hardened | 1 | 000000000 | 00000 |
Zinc-Flake-Coated Steel | |||||||||
| 7/8", M22 | 0.920" | 1.360" | 0.120"-0.140" | Wedge Lock | Rockwell C46 | __ | 2 | 000000000 | 0000 |
| 7/8", M22 | 0.920" | 1.650" | 0.170"-0.190" | Wedge Lock | Rockwell C46 | __ | 2 | 000000000 | 00000 |
Metric Tab Lock Washers
Bend the tab on these metric lock washers to prevent the fastener and washer from turning and loosening due to vibration. All meet DIN dimensional standards.
DIN 432 washers have a partial cone shape that gives them spring-like flexibility, so they distribute force and grip tighter than split and tooth lock washers. However, they do not resist vibration as well as DIN 93 washers. These washers prevent loosening from wear or changes in temperature when you bend the tab against the flats of a hex nut or bolt head. They do not need to be used near the edge of the mounting surface.
316 stainless steel washers are more corrosion resistant than steel, and nearly as strong. You can expose them to salt water, chlorine solutions, and chemicals without any rusting.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID, mm | OD, mm | Overall Ht., mm | Thick., mm | Tab Wd., mm | Hardness | Pkg. Qty. | Pkg. | |
DIN 432—316 Stainless Steel | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| M22 | 23 | 50 | 6.5 | 1.6 | 7.5 | Not Rated | 1 | 000000000 | 00000 |
Metric High-Pressure-Rated Metal-Bonded Sealing Washers
Able to withstand pressure greater than 2,000 psi, these one-piece bonded washers create the tightest seals.
Zinc-plated steel washers are corrosion resistant in wet environments. They are reusable.
Washers with a Buna-N rubber seal have excellent abrasion resistance and good oil, weather, and chemical resistance.
For technical drawings and 3-D models, click on a part number.
Max. Pressure, psi | Temperature Range, °F | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Screw Size | ID, mm | OD, mm | Thick., mm | For Fluids | For Gases | Min. | Max. | Hardness | Seal Hardness | Seal Color | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel with Buna-N Rubber Seal | |||||||||||||
| M22 | 21.6 | 31.4 | 1.1-1.4 | 3,700 | 200 | -10° | 240° | Rockwell B105 | Durometer 60A | Black | 5 | 000000000 | 000000 |
Weather-Resistant Rubber Sealing Washers
Sunlight, ozone, and water won’t affect these washers. They create a light duty seal around fasteners to prevent fluids from leaking and damp vibration.
FDA compliant washers are safe for direct contact with food.
For technical drawings and 3-D models, click on a part number.
Temperature Range, °F | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For Screw Size | ID | OD | Thick. | Min. | Max. | Hardness | Color | Specifications Met | Pkg. Qty. | Pkg. | |
EPDM Rubber | |||||||||||
| M22 | 24.000mm | 39.000mm | 1.190mm-1.950mm | -50° | 300° | Durometer 60A | White | FDA Compliant 21 CFR 177.2600 | 25 | 000000000 | 000000 |
Oil-Resistant Rubber Sealing Washers
These washers surpass other rubber washers when it comes to withstanding oil, grease, and fuel. They create a light duty seal around fasteners to prevent fluids from leaking and damp vibration.
Neoprene washers have good abrasion resistance.
FDA-compliant washers are safe for direct contact with food.
For technical drawings and 3-D models, click on a part number.
Temperature Range, °F | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For Screw Size | ID | OD | Thick. | Min. | Max. | Hardness | Color | Specifications Met | Pkg. Qty. | Pkg. | |
Neoprene Rubber | |||||||||||
| M22 | 24.000mm | 39.000mm | 1.168mm-1.981mm | -30° | 220° | Durometer 55A | White | FDA Compliant 21 CFR 177.2600 | 10 | 000000000 | 000000 |
Chemical-Resistant Rubber Sealing Washers
These washers withstand harsh chemicals such as acetic acid and isopropyl alcohol. They create a light duty seal around fasteners to prevent fluids from leaking and damp vibration.
Fluorosilicone washers withstand a wider range of temperatures and are more chemical resistant than Santoprene washers.
For technical drawings and 3-D models, click on a part number.
Metal Sealing Washers
Also known as crush washers, these compress when tightened to form a tighter, more durable seal than rubber washers. They are commonly used to seal fluids such as oil and fuel. Washers are not reusable.
Copper washers are corrosion resistant in wet environments, nonmagnetic, and electrically conductive. Cellulose-filled copper washers are for low-torque applications since they’re easier to crush than standard copper washers.
Aluminum washers are lightweight and corrosion resistant in wet environments.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Specifications Met | Pkg. Qty. | Pkg. | |
Copper | |||||||
|---|---|---|---|---|---|---|---|
| M22 | 22.200mm | 26.900mm | 1.3mm-1.7mm | DIN 7603 | 5 | 000000000 | 000000 |
| M22 | 22.200mm | 28.900mm | 1.3mm-1.7mm | DIN 7603 | 5 | 000000000 | 00000 |
Cellulose-Filled Copper | |||||||
| M22 | 22.200mm | 26.900mm | 1.8mm-2.2mm | DIN 7603 | 10 | 000000000 | 00000 |
Aluminum | |||||||
| M22 | 22.200mm | 26.900mm | 1.3mm-1.7mm | DIN 7603 | 10 | 000000000 | 00000 |
Fiber Sealing Washers
Made of fiber, these washers create a seal with minimal torque and reseal better than copper and aluminum washers.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID, mm | OD, mm | Thick., mm | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
Fiber | ||||||||
|---|---|---|---|---|---|---|---|---|
| M22 | 22 | 27 | 0.8 | Rockwell R50 | DIN 7603 | 100 | 000000000 | 00000 |