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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.
Steel washers are stronger and more wear resistant than stainless steel washers. 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.
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.
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 | ||||||||
---|---|---|---|---|---|---|---|---|
M26 | 26.0 | 40.0 | 4.4-5.6 | Rockwell B76 | DIN 1440, ISO 8738 | 5 | 000000000 | 00000 |
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 | |||||||||||
M26 | 27.000mm | 50.000mm | 1.190mm-1.950mm | -50° | 300° | Durometer 60A | White | FDA Compliant 21 CFR 177.2600 | 5 | 000000000 | 000000 |
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 | |||||||
---|---|---|---|---|---|---|---|
M26 | 26.300mm | 31.900mm | 1.8mm-2.2mm | DIN 7603 | 5 | 000000000 | 000000 |
Cellulose-Filled Copper | |||||||
M26 | 26.300mm | 30.900mm | 2.3mm-2.7mm | DIN 7603 | 10 | 000000000 | 00000 |
M26 | 26.300mm | 31.900mm | 2.3mm-2.7mm | DIN 7603 | 10 | 000000000 | 00000 |
M26 | 26.300mm | 33.900mm | 2.3mm-2.7mm | DIN 7603 | 10 | 000000000 | 00000 |
Aluminum | |||||||
M26 | 26.300mm | 31.900mm | 1.8mm-2.2mm | DIN 7603 | 10 | 000000000 | 00000 |