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Oversized Washers
Compared to our general purpose washers, these have exaggerated diameters and/or thicknesses for covering oversized holes or for use as spacers and levelers.
Zinc- and zinc yellow-chromate plated steel washers are corrosion resistant in wet environments.
Hot-dipped galvanized steel washers are 10 times as corrosion resistant as zinc- and zinc yellow-chromate plated washers.
Black Corrosion-Resistant-Coated Steel washers resist chemicals and withstand 1,000 hours of salt spray. They’re also known as black luster washers.
USS washers generally have a larger ID and OD than SAE washers.
For technical drawings and 3-D models, click on a part number.
For Screw Size | ID | OD | Thick. | Hardness | Specifications Met | Washer Designation | Pkg. Qty. | Pkg. | |
Zinc Yellow-Chromate Plated Grade 8 Steel | |||||||||
---|---|---|---|---|---|---|---|---|---|
1/4" | 0.281" | 0.625" | 0.090"-0.108" | Rockwell C43 | __ | __ | 100 | 000000000 | 000000 |
5/16" | 0.344" | 0.688" | 0.090"-0.108" | Rockwell C43 | __ | __ | 50 | 000000000 | 00000 |
3/8" | 0.406" | 0.812" | 0.110"-0.126" | Rockwell C43 | __ | __ | 50 | 000000000 | 00000 |
7/16" | 0.469" | 0.922" | 0.110"-0.126" | Rockwell C43 | __ | __ | 25 | 000000000 | 00000 |
1/2" | 0.531" | 1.062" | 0.190"-0.208" | Rockwell C43 | __ | __ | 25 | 000000000 | 00000 |
9/16" | 0.594" | 1.172" | 0.168"-0.191" | Rockwell C43 | __ | __ | 10 | 000000000 | 00000 |
5/8" | 0.656" | 1.312" | 0.206"-0.229" | Rockwell C43 | __ | __ | 10 | 000000000 | 00000 |
3/4" | 0.812" | 1.469" | 0.206"-0.229" | Rockwell C43 | __ | __ | 10 | 000000000 | 00000 |
7/8" | 0.938" | 1.750" | 0.235"-0.264" | Rockwell C43 | __ | __ | 5 | 000000000 | 0000 |
1" | 1.062" | 2.000" | 0.235"-0.264" | Rockwell C43 | __ | __ | 5 | 000000000 | 0000 |
1 1/8" | 1.188" | 2.250" | 0.235"-0.264" | Rockwell C43 | __ | __ | 5 | 000000000 | 00000 |
1 1/4" | 1.375" | 2.500" | 0.235"-0.264" | Rockwell C43 | __ | __ | 5 | 000000000 | 00000 |
1 3/8" | 1.438" | 2.750" | 0.235"-0.264" | Rockwell C43 | __ | __ | 1 | 000000000 | 0000 |
1 1/2" | 1.562" | 3.000" | 0.235"-0.264" | Rockwell C43 | __ | __ | 1 | 000000000 | 0000 |
Hot-Dipped Galvanized Steel | |||||||||
1/2" | 0.562" | 3.000" | 0.235"-0.265" | Rockwell B40 | __ | __ | 1 | 000000000 | 00000 |
5/8" | 0.688" | 3.000" | 0.235"-0.265" | Rockwell B40 | __ | __ | 1 | 000000000 | 00000 |
3/4" | 0.812" | 3.000" | 0.235"-0.265" | Rockwell B40 | __ | __ | 1 | 000000000 | 0000 |
7/8" | 0.938" | 3.000" | 0.235"-0.265" | Rockwell B40 | __ | __ | 1 | 000000000 | 00000 |
1" | 1.062" | 3.250" | 0.235"-0.265" | Rockwell B40 | __ | __ | 1 | 000000000 | 00000 |
1 1/4" | 1.375" | 4.000" | 0.485"-0.515" | Rockwell B40 | __ | __ | 1 | 000000000 | 00000 |
Steel | |||||||||
No. 10 | 0.203" | 0.500" | 0.089"-0.099" | Rockwell B84 | __ | __ | 25 | 000000000 | 00000 |
1/4" | 0.281" | 0.625" | 0.120"-0.130" | Rockwell B84 | __ | __ | 25 | 000000000 | 00000 |
5/16" | 0.344" | 0.750" | 0.120"-0.130" | Rockwell B84 | __ | __ | 25 | 000000000 | 00000 |
3/8" | 0.406" | 0.875" | 0.120"-0.130" | Rockwell B84 | __ | __ | 10 | 000000000 | 0000 |
7/16" | 0.469" | 1.000" | 0.151"-0.161" | Rockwell B84 | __ | __ | 10 | 000000000 | 00000 |
1/2" | 0.531" | 1.000" | 0.183"-0.193" | Rockwell B84 | __ | __ | 10 | 000000000 | 00000 |
5/8" | 0.656" | 1.250" | 0.245"-0.255" | Rockwell B84 | __ | __ | 5 | 000000000 | 00000 |
3/4" | 0.781" | 1.500" | 0.245"-0.255" | Rockwell B84 | __ | __ | 5 | 000000000 | 00000 |
7/8" | 0.906" | 1.750" | 0.245"-0.255" | Rockwell B84 | __ | __ | 1 | 000000000 | 0000 |
1" | 1.031" | 2.000" | 0.308"-0.318" | Rockwell B84 | __ | __ | 1 | 000000000 | 0000 |
1 1/8" | 1.156" | 2.250" | 0.308"-0.318" | Rockwell B84 | __ | __ | 1 | 000000000 | 0000 |
1 1/4" | 1.281" | 2.250" | 0.308"-0.318" | Rockwell B84 | __ | __ | 1 | 000000000 | 0000 |
Black Corrosion-Resistant-Coated Steel | |||||||||
1/4" | 0.313" | 0.750" | 0.090"-0.110" | Rockwell C38 | ASME B18.21.1 | USS | 5 | 000000000 | 0000 |
5/16" | 0.375" | 0.875" | 0.090"-0.110" | Rockwell C38 | ASME B18.21.1 | USS | 5 | 000000000 | 0000 |
3/8" | 0.438" | 1.000" | 0.110"-0.126" | Rockwell C38 | ASME B18.21.1 | USS | 5 | 000000000 | 00000 |
7/16" | 0.500" | 1.250" | 0.110"-0.126" | Rockwell C38 | ASME B18.21.1 | USS | 5 | 000000000 | 00000 |
1/2" | 0.563" | 1.375" | 0.156"-0.188" | Rockwell C38 | ASME B18.21.1 | USS | 1 | 000000000 | 0000 |
9/16" | 0.625" | 1.500" | 0.156"-0.188" | Rockwell C38 | ASME B18.21.1 | USS | 1 | 000000000 | 0000 |
5/8" | 0.688" | 1.750" | 0.170"-0.195" | Rockwell C38 | ASME B18.21.1 | USS | 1 | 000000000 | 0000 |
3/4" | 0.813" | 2.000" | 0.170"-0.195" | Rockwell C38 | ASME B18.21.1 | USS | 1 | 000000000 | 0000 |
7/8" | 0.938" | 2.250" | 0.235"-0.265" | Rockwell C38 | ASME B18.21.1 | USS | 1 | 000000000 | 00000 |
1" | 1.063" | 2.500" | 0.235"-0.265" | Rockwell C38 | ASME B18.21.1 | USS | 1 | 000000000 | 00000 |
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. Black-oxide steel washers have a matte-black finish that prevents corrosion in dry environments. 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. Zinc yellow-chromate plated steel washers resist corrosion in wet environments. Blue-dyed steel washers have a unique color so you can tell they're metric at a glance.
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. Black-oxide 18-8 stainless steel washers resist corrosion just as well as regular 18-8 stainless steel washers and have a matte-black finish. 316 stainless steel washers stand up to salt water, chlorine solutions, and other chemicals without rusting. Bumax 88 stainless steel washers are the most corrosion resistant washers in our offering. They're commonly used in marine environments and chemical-processing plants. Passivated stainless steel washers have added protection against oxidation and corrosion.
Washers for class 10.9 fasteners are stronger than washers for class 8.8 fasteners.
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 | ||||||||
---|---|---|---|---|---|---|---|---|
M3 | 3.0 | 6.0 | 0.7-0.9 | Rockwell B76 | DIN 1440, ISO 8738 | 100 | 000000000 | 00000 |
M4 | 4.0 | 8.0 | 0.7-0.9 | Rockwell B76 | DIN 1440, ISO 8738 | 100 | 000000000 | 0000 |
M5 | 5.0 | 10.0 | 0.7-0.9 | Rockwell B76 | DIN 1440, ISO 8738 | 100 | 000000000 | 0000 |
M5 | 5.3 | 15.0 | 1.0-1.4 | Not Rated | DIN 9021 | 100 | 000000000 | 0000 |
M5 | 5.3 | 15.0 | 1.8-2.2 | Not Rated | DIN 7349 | 50 | 000000000 | 0000 |
M5 | 5.5 | 18.0 | 1.7-2.3 | Rockwell B50 | DIN 440-R | 100 | 000000000 | 00000 |
M6 | 6.0 | 12.0 | 1.3-1.7 | Rockwell B76 | DIN 1440, ISO 8738 | 100 | 000000000 | 0000 |
M6 | 6.4 | 17.0 | 2.7-3.3 | Rockwell C35 | DIN 6340 | 50 | 000000000 | 00000 |
M6 | 6.6 | 22.0 | 1.7-2.3 | Rockwell B50 | DIN 440-R | 25 | 000000000 | 0000 |
M7 | 7.0 | 14.0 | 1.3-1.7 | Rockwell B76 | DIN 1440, ISO 8738 | 100 | 000000000 | 0000 |
M8 | 8.0 | 16.0 | 1.8-2.2 | Rockwell B76 | DIN 1440, ISO 8738 | 100 | 000000000 | 00000 |
M8 | 8.4 | 23.0 | 3.7-4.3 | Rockwell C35 | DIN 6340 | 25 | 000000000 | 00000 |
M8 | 8.9 | 21.0 | 1.5-2.3 | Not Rated | DIN 7349 | 25 | 000000000 | 00000 |
M8 | 9.0 | 28.0 | 2.4-3.6 | Rockwell B50 | DIN 440-R | 10 | 000000000 | 0000 |
M10 | 10.0 | 20.0 | 2.2-2.8 | Rockwell B76 | DIN 1440, ISO 8738 | 50 | 000000000 | 00000 |
M10 | 10.5 | 28.0 | 3.7-4.3 | Rockwell C35 | DIN 6340 | 10 | 000000000 | 0000 |
M10 | 10.8 | 25.0 | 2.0-2.9 | Not Rated | DIN 7349 | 25 | 000000000 | 00000 |
M10 | 10.8 | 30.0 | 2.0-2.9 | Not Rated | DIN 9021 | 25 | 000000000 | 00000 |
M10 | 11.0 | 34.0 | 2.4-3.6 | Rockwell B50 | DIN 440-R | 25 | 000000000 | 00000 |
M12 | 12.0 | 25.0 | 2.7-3.3 | Rockwell B76 | DIN 1440, ISO 8738 | 25 | 000000000 | 00000 |
M12 | 13.0 | 35.0 | 4.4-5.6 | Rockwell C35 | DIN 6340 | 10 | 000000000 | 00000 |
M12 | 13.5 | 30.0 | 2.0-2.9 | Not Rated | DIN 7349 | 25 | 000000000 | 00000 |
M12 | 13.5 | 37.0 | 2.0-2.9 | Not Rated | DIN 9021 | 10 | 000000000 | 00000 |
M12 | 13.5 | 44.0 | 3.4-4.6 | Rockwell B50 | DIN 440-R | 5 | 000000000 | 0000 |
M14 | 14.0 | 28.0 | 2.7-3.3 | Rockwell B76 | DIN 1440, ISO 8738 | 25 | 000000000 | 00000 |
M16 | 16.0 | 28.0 | 2.7-3.3 | Rockwell B76 | DIN 1440, ISO 8738 | 25 | 000000000 | 00000 |
M16 | 17.0 | 40.0 | 5.4-6.6 | Not Rated | DIN 7349 | 1 | 000000000 | 0000 |
M16 | 17.0 | 45.0 | 5.4-6.6 | Rockwell C35 | DIN 6340 | 5 | 000000000 | 00000 |
M16 | 17.0 | 50.0 | 2.7-3.3 | Not Rated | DIN 9021 | 5 | 000000000 | 0000 |
M16 | 17.5 | 56.0 | 4.0-6.0 | Rockwell B50 | DIN 440-R | 5 | 000000000 | 00000 |
M18 | 18.0 | 30.0 | 3.7-4.3 | Rockwell B76 | DIN 1440, ISO 8738 | 10 | 000000000 | 0000 |
M20 | 20.0 | 32.0 | 3.7-4.3 | Rockwell B76 | DIN 1440, ISO 8738 | 10 | 000000000 | 0000 |
M20 | 21.0 | 44.0 | 7.0-9.0 | Not Rated | DIN 7349 | 1 | 000000000 | 0000 |
M20 | 21.0 | 50.0 | 5.4-6.6 | Rockwell C35 | DIN 6340 | 5 | 000000000 | 00000 |
M20 | 22.0 | 60.0 | 3.4-4.6 | Not Rated | DIN 9021 | 1 | 000000000 | 0000 |
M20 | 22.0 | 72.0 | 5.0-7.0 | Rockwell B50 | DIN 440-R | 1 | 000000000 | 0000 |
M22 | 22.0 | 34.0 | 3.7-4.3 | Rockwell B76 | DIN 1440, ISO 8738 | 10 | 000000000 | 00000 |
M22 | 24.0 | 80.0 | 5.0-7.0 | Rockwell B50 | DIN 440-R | 1 | 000000000 | 0000 |
M24 | 24.0 | 38.0 | 3.7-4.3 | Rockwell B76 | DIN 1440, ISO 8738 | 10 | 000000000 | 00000 |
M24 | 25.0 | 60.0 | 7.0-9.0 | Rockwell C35 | DIN 6340 | 1 | 000000000 | 0000 |
M24 | 26.0 | 85.0 | 5.0-7.0 | Rockwell B50 | DIN 440-R | 1 | 000000000 | 0000 |
M25 | 25.0 | 40.0 | 3.7-4.3 | Rockwell B76 | DIN 1440, ISO 8738 | 5 | 000000000 | 0000 |
M26 | 26.0 | 40.0 | 4.4-5.6 | Rockwell B76 | DIN 1440, ISO 8738 | 5 | 000000000 | 0000 |
M27 | 30.0 | 98.0 | 5.0-7.0 | Rockwell B50 | DIN 440-R | 1 | 000000000 | 0000 |
M28 | 28.0 | 42.0 | 4.4-5.6 | Rockwell B76 | DIN 1440, ISO 8738 | 5 | 000000000 | 00000 |
M30 | 30.0 | 45.0 | 4.4-5.6 | Rockwell B76 | DIN 1440, ISO 8738 | 1 | 000000000 | 0000 |
M30 | 31.0 | 68.0 | 9.0-11.0 | Rockwell C35 | DIN 6340 | 1 | 000000000 | 0000 |
M32 | 32.0 | 50.0 | 4.4-5.6 | Rockwell B76 | DIN 1440, ISO 8738 | 1 | 000000000 | 0000 |
Black-Oxide Steel | ||||||||
M3 | 3.2 | 8.0 | 1.5-2.4 | Rockwell 15N80 | __ | 25 | 000000000 | 00000 |
M3 | 3.2 | 12.0 | 2.5-3.4 | Rockwell 15N80 | __ | 5 | 000000000 | 0000 |
M4 | 4.3 | 10.0 | 1.5-2.4 | Rockwell 15N80 | __ | 25 | 000000000 | 00000 |
M4 | 4.3 | 12.0 | 1.4-1.8 | Not Rated | DIN 7349 | 50 | 000000000 | 00000 |
M4 | 4.3 | 14.0 | 2.5-3.4 | Rockwell 15N80 | __ | 5 | 000000000 | 0000 |
M5 | 5.3 | 11.0 | 1.5-2.4 | Rockwell 15N80 | __ | 10 | 000000000 | 0000 |
M5 | 5.3 | 15.0 | 3.0-3.9 | Rockwell 15N80 | __ | 5 | 000000000 | 0000 |
M6 | 6.4 | 13.0 | 2.0-2.9 | Rockwell 15N80 | __ | 10 | 000000000 | 0000 |
M6 | 6.4 | 17.0 | 2.7-3.3 | Not Rated | DIN 7349 | 25 | 000000000 | 00000 |
M6 | 6.4 | 18.0 | 4.0-4.9 | Rockwell 15N80 | __ | 5 | 000000000 | 00000 |
M8 | 8.4 | 16.0 | 2.5-3.4 | Rockwell 15N80 | __ | 10 | 000000000 | 0000 |
M8 | 8.4 | 22.0 | 4.5-5.4 | Rockwell 15N80 | __ | 5 | 000000000 | 0000 |
M10 | 10.5 | 19.0 | 2.5-3.4 | Rockwell 15N80 | __ | 10 | 000000000 | 0000 |
M10 | 10.5 | 23.0 | 4.5-5.4 | Rockwell 15N80 | __ | 5 | 000000000 | 0000 |
M10 | 10.5 | 30.0 | 2.3-2.7 | Not Rated | DIN 9021 | 10 | 000000000 | 0000 |
M12 | 13.0 | 22.0 | 2.5-3.4 | Rockwell 15N80 | __ | 10 | 000000000 | 0000 |
M12 | 13.0 | 26.0 | 4.5-5.4 | Rockwell 15N80 | __ | 5 | 000000000 | 0000 |
M12 | 13.0 | 37.0 | 2.7-3.3 | Not Rated | DIN 9021 | 5 | 000000000 | 0000 |
M14 | 15.0 | 25.0 | 2.5-3.4 | Rockwell 15N80 | __ | 10 | 000000000 | 0000 |
M14 | 15.0 | 27.0 | 4.5-5.4 | Rockwell 15N80 | __ | 5 | 000000000 | 0000 |
M16 | 17.0 | 28.0 | 3.0-3.9 | Rockwell 15N80 | __ | 10 | 000000000 | 0000 |
M16 | 17.0 | 32.0 | 4.5-5.4 | Rockwell 15N80 | __ | 5 | 000000000 | 00000 |
M18 | 19.0 | 44.0 | 7.0-9.0 | Not Rated | DIN 7349 | 1 | 000000000 | 0000 |
M20 | 21.0 | 35.0 | 3.0-3.9 | Rockwell 15N80 | __ | 10 | 000000000 | 00000 |
M20 | 21.0 | 35.0 | 4.5-5.4 | Rockwell 15N80 | __ | 5 | 000000000 | 00000 |
M24 | 25.0 | 40.0 | 3.5-4.4 | Rockwell 15N80 | __ | 5 | 000000000 | 0000 |
M24 | 25.0 | 43.0 | 6.0-6.9 | Rockwell 15N80 | __ | 5 | 000000000 | 00000 |
M30 | 31.0 | 44.0 | 3.5-4.4 | Rockwell 15N80 | __ | 5 | 000000000 | 00000 |
M30 | 31.0 | 48.0 | 6.0-6.9 | Rockwell 15N80 | __ | 1 | 000000000 | 0000 |
M36 | 37.0 | 50.0 | 4.5-5.4 | Rockwell 15N80 | __ | 5 | 000000000 | 00000 |
M36 | 37.0 | 50.0 | 7.0-7.9 | Rockwell 15N80 | __ | 1 | 000000000 | 0000 |
Zinc-Plated Steel | ||||||||
M2 | 2.2 | 7.0 | 0.6-1.0 | Not Rated | __ | 50 | 000000000 | 00000 |
M2.5 | 2.7 | 8.0 | 0.7-0.9 | Rockwell B56 | DIN 9021 | 100 | 000000000 | 0000 |
M3 | 3.2 | 9.0 | 0.7-0.9 | Rockwell B56 | DIN 9021 | 100 | 000000000 | 0000 |
M3 | 3.2 | 9.0 | 0.9-1.1 | Rockwell B76 | DIN 7349 | 100 | 000000000 | 0000 |
M4 | 4.3 | 12.0 | 0.9-1.1 | Rockwell B56 | DIN 9021 | 100 | 000000000 | 0000 |
M4 | 4.3 | 12.0 | 1.4-1.8 | Rockwell B76 | DIN 7349 | 100 | 000000000 | 0000 |
M5 | 5.3 | 15.0 | 1.0-1.4 | Rockwell B56 | DIN 9021 | 100 | 000000000 | 0000 |
M5 | 5.3 | 15.0 | 1.8-2.2 | Rockwell B76 | DIN 7349 | 100 | 000000000 | 0000 |
M5 | 5.5 | 18.0 | 1.7-2.3 | Not Rated | DIN 440-R | 25 | 000000000 | 00000 |
M6 | 6.4 | 17.0 | 2.7-3.3 | Rockwell B76 | DIN 7349 | 100 | 000000000 | 00000 |
M6 | 6.4 | 18.0 | 1.4-1.8 | Rockwell B56 | DIN 9021 | 100 | 000000000 | 0000 |
M6 | 6.6 | 22.0 | 1.7-2.3 | Not Rated | DIN 440-R | 25 | 000000000 | 00000 |
M8 | 8.4 | 21.0 | 3.7-4.3 | Rockwell B76 | DIN 7349 | 50 | 000000000 | 00000 |
M8 | 8.4 | 23.0 | 3.7-4.3 | Not Rated | DIN 6340 | 10 | 000000000 | 00000 |
M8 | 8.4 | 24.0 | 1.8-2.2 | Rockwell B56 | DIN 9021 | 100 | 000000000 | 00000 |
M8 | 9.0 | 28.0 | 2.4-3.6 | Not Rated | DIN 440-R | 10 | 000000000 | 00000 |
M10 | 10.5 | 25.0 | 3.7-4.3 | Rockwell B76 | DIN 7349 | 50 | 000000000 | 00000 |
M10 | 10.5 | 30.0 | 2.3-2.7 | Rockwell B56 | DIN 9021 | 50 | 000000000 | 00000 |
M10 | 11.0 | 34.0 | 2.4-3.6 | Not Rated | DIN 440-R | 10 | 000000000 | 00000 |
M12 | 13.0 | 30.0 | 5.4-6.6 | Rockwell B76 | DIN 7349 | 10 | 000000000 | 0000 |
M12 | 13.0 | 37.0 | 2.7-3.3 | Rockwell B56 | DIN 9021 | 25 | 000000000 | 00000 |
M14 | 15.0 | 36.0 | 5.4-6.6 | Rockwell B76 | DIN 7349 | 10 | 000000000 | 00000 |
M14 | 15.0 | 44.0 | 2.7-3.3 | Rockwell B75 | DIN 9021 | 25 | 000000000 | 00000 |
M16 | 17.0 | 40.0 | 5.4-6.6 | Rockwell B76 | DIN 7349 | 10 | 000000000 | 00000 |
M16 | 17.0 | 50.0 | 2.7-3.3 | Rockwell B56 | DIN 9021 | 25 | 000000000 | 00000 |
M18 | 19.0 | 44.0 | 7.0-9.0 | Rockwell B76 | DIN 7349 | 5 | 000000000 | 0000 |
M18 | 20.0 | 56.0 | 3.4-4.6 | Rockwell B56 | DIN 9021 | 10 | 000000000 | 00000 |
M20 | 21.0 | 44.0 | 7.0-9.0 | Rockwell B76 | DIN 7349 | 5 | 000000000 | 00000 |
M20 | 22.0 | 60.0 | 3.4-4.6 | Rockwell B56 | DIN 9021 | 10 | 000000000 | 00000 |
M22 | 23.0 | 50.0 | 7.0-9.0 | Rockwell B76 | DIN 7349 | 5 | 000000000 | 00000 |
M24 | 25.0 | 50.0 | 9.0-11.0 | Rockwell B76 | DIN 7349 | 1 | 000000000 | 0000 |
M24 | 26.8 | 72.0 | 4.0-6.0 | Rockwell B53 | DIN 9021 | 1 | 000000000 | 0000 |
M27 | 28.0 | 60.0 | 9.0-11.0 | Rockwell B76 | DIN 7349 | 1 | 000000000 | 0000 |
M30 | 31.0 | 68.0 | 9.0-11.0 | Rockwell B76 | DIN 7349 | 1 | 000000000 | 0000 |
Zinc-Plated Steel for Class 8.8 Fasteners | ||||||||
M3 | 3.3 | 8.7 | 0.7-0.9 | Not Rated | DIN 7349 | 100 | 000000000 | 00000 |
M3 | 3.3 | 8.7 | 0.7-0.9 | Not Rated | DIN 9021 | 100 | 000000000 | 00000 |
M4 | 4.4 | 11.7 | 0.9-1.1 | Not Rated | DIN 9021 | 100 | 000000000 | 00000 |
M4 | 4.4 | 11.7 | 1.4-1.8 | Not Rated | DIN 7349 | 50 | 000000000 | 00000 |
M5 | 5.4 | 14.7 | 1.0-1.4 | Not Rated | DIN 9021 | 100 | 000000000 | 00000 |
M5 | 5.4 | 14.7 | 1.8-2.2 | Not Rated | DIN 7349 | 50 | 000000000 | 00000 |
M6 | 6.5 | 16.7 | 2.7-3.3 | Not Rated | DIN 7349-A | 25 | 000000000 | 00000 |
M6 | 6.5 | 17.7 | 1.4-1.8 | Not Rated | DIN 9021 | 50 | 000000000 | 00000 |
M8 | 8.5 | 20.7 | 3.7-4.3 | Not Rated | DIN 7349-A | 10 | 000000000 | 00000 |
M8 | 8.5 | 23.7 | 1.8-2.2 | Not Rated | DIN 9021 | 25 | 000000000 | 00000 |
M10 | 10.6 | 24.7 | 3.7-4.3 | Not Rated | DIN 7349-A | 10 | 000000000 | 00000 |
M10 | 10.6 | 29.7 | 2.3-2.7 | Not Rated | DIN 9021 | 10 | 000000000 | 00000 |
M12 | 13.1 | 36.6 | 2.7-3.3 | Not Rated | DIN 9021 | 5 | 000000000 | 00000 |
M12 | 13.2 | 29.5 | 5.4-6.6 | Not Rated | DIN 7349-A | 1 | 000000000 | 0000 |
M16 | 17.1 | 49.6 | 2.7-3.3 | Not Rated | DIN 9021 | 1 | 000000000 | 0000 |
M16 | 17.2 | 39.5 | 5.4-6.6 | Not Rated | DIN 7349-A | 1 | 000000000 | 0000 |
M20 | 22.2 | 58.4 | 3.4-4.6 | Not Rated | DIN 9021 | 1 | 000000000 | 0000 |
Zinc-Plated Steel for Class 10.9 Fasteners | ||||||||
M6 | 6.5 | 16.7 | 2.7-3.3 | Not Rated | DIN 7349-A | 10 | 000000000 | 0000 |
M6 | 6.5 | 17.7 | 1.4-1.8 | Not Rated | DIN 9021 | 25 | 000000000 | 00000 |
M8 | 8.5 | 20.7 | 3.7-4.3 | Not Rated | DIN 7349-A | 10 | 000000000 | 00000 |
M8 | 8.5 | 23.7 | 1.8-2.2 | Not Rated | DIN 9021 | 10 | 000000000 | 0000 |
M10 | 10.6 | 24.7 | 3.7-4.3 | Not Rated | DIN 7349 | 5 | 000000000 | 00000 |
M10 | 10.6 | 29.7 | 2.3-2.7 | Not Rated | DIN 9021 | 5 | 000000000 | 00000 |
M12 | 13.1 | 36.6 | 2.7-3.3 | Not Rated | DIN 9021 | 5 | 000000000 | 00000 |
M14 | 15.1 | 43.6 | 2.7-3.3 | Not Rated | DIN 9021 | 1 | 000000000 | 0000 |
M16 | 17.1 | 49.6 | 2.7-3.3 | Not Rated | DIN 9021 | 1 | 000000000 | 0000 |
M20 | 22.2 | 58.5 | 3.4-4.6 | Not Rated | DIN 9021 | 1 | 000000000 | 00000 |
Zinc Yellow-Chromate Plated Steel for Class 10.9 Fasteners | ||||||||
M6 | 6.5 | 16.7 | 2.7-3.3 | Not Rated | DIN 7349 | 10 | 000000000 | 0000 |
M6 | 6.5 | 17.7 | 1.4-1.8 | Not Rated | DIN 9021 | 25 | 000000000 | 00000 |
M8 | 8.5 | 20.7 | 3.7-4.3 | Not Rated | DIN 7349 | 10 | 000000000 | 00000 |
M8 | 8.5 | 23.7 | 1.8-2.2 | Not Rated | DIN 9021 | 10 | 000000000 | 0000 |
M10 | 10.6 | 24.7 | 3.7-4.3 | Not Rated | DIN 7349 | 5 | 000000000 | 00000 |
M10 | 10.6 | 29.7 | 2.3-2.7 | Not Rated | DIN 9021 | 5 | 000000000 | 00000 |
M12 | 13.1 | 36.6 | 2.7-3.3 | Not Rated | DIN 9021 | 5 | 000000000 | 00000 |
M16 | 17.1 | 49.6 | 2.7-3.3 | Not Rated | DIN 9021 | 1 | 000000000 | 0000 |
Black Corrosion-Resistant-Coated Steel | ||||||||
M4 | 4.3 | 12.0 | 0.9-1.1 | Rockwell B56 | DIN 9021, ISO 7093 | 5 | 000000000 | 0000 |
M5 | 5.3 | 15.0 | 1.0-1.4 | Rockwell B56 | DIN 9021, ISO 7093 | 5 | 000000000 | 0000 |
M6 | 6.4 | 18.0 | 1.4-1.8 | Rockwell B56 | DIN 9021, ISO 7093 | 5 | 000000000 | 0000 |
M8 | 8.4 | 24.0 | 1.8-2.2 | Rockwell B56 | DIN 9021, ISO 7093 | 5 | 000000000 | 0000 |
M10 | 10.5 | 30.0 | 2.3-2.7 | Rockwell B56 | DIN 9021, ISO 7093 | 5 | 000000000 | 00000 |
M12 | 13.0 | 37.0 | 2.7-3.3 | Rockwell B56 | DIN 9021, ISO 7093 | 1 | 000000000 | 0000 |
M14 | 15.0 | 44.0 | 2.7-3.3 | Rockwell B56 | DIN 9021, ISO 7093 | 1 | 000000000 | 0000 |
Blue-Dyed Steel | ||||||||
M6 | 6.4 | 17.0 | 2.8-3.3 | Not Rated | DIN 7349 | 20 | 000000000 | 00000 |
M6 | 7.0 | 12.0 | 2.7-4.0 | Rockwell C38 | __ | 25 | 000000000 | 00000 |
M8 | 9.0 | 17.0 | 2.5-3.5 | Rockwell C38 | __ | 50 | 000000000 | 00000 |
M10 | 11.0 | 20.0 | 3.0-4.5 | Rockwell C38 | __ | 25 | 000000000 | 00000 |
M12 | 14.2 | 26.0 | 3.4-3.7 | Rockwell C38 | __ | 10 | 000000000 | 0000 |
M16 | 18.0 | 32.0 | 3.1-4.6 | Rockwell C38 | __ | 5 | 000000000 | 0000 |
M20 | 22.0 | 38.0 | 2.9-3.3 | Rockwell C38 | __ | 5 | 000000000 | 0000 |
M24 | 26.0 | 48.0 | 3.4-4.6 | Rockwell C38 | __ | 5 | 000000000 | 00000 |
M30 | 33.0 | 58.0 | 3.4-4.6 | Rockwell C38 | __ | 1 | 000000000 | 0000 |
M36 | 39.3 | 70.0 | 3.9-4.3 | Rockwell C38 | __ | 1 | 000000000 | 00000 |
18-8 Stainless Steel | ||||||||
M2.5 | 2.7 | 8.0 | 0.7-0.9 | Rockwell B52 | DIN 9021 | 100 | 000000000 | 0000 |
M3 | 3.2 | 8.0 | 1.5-2.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
M3 | 3.2 | 9.0 | 0.7-0.9 | Rockwell B52 | DIN 9021 | 100 | 000000000 | 0000 |
M3 | 3.2 | 12.0 | 2.5-3.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
M4 | 4.3 | 10.0 | 1.5-2.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
M4 | 4.3 | 12.0 | 0.9-1.1 | Rockwell B52 | DIN 9021 | 100 | 000000000 | 0000 |
M4 | 4.3 | 14.0 | 2.5-3.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
M5 | 5.3 | 11.0 | 1.5-2.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
M5 | 5.3 | 15.0 | 1.0-1.4 | Rockwell B52 | DIN 9021 | 100 | 000000000 | 00000 |
M5 | 5.3 | 15.0 | 3.0-3.9 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
M6 | 6.4 | 13.0 | 2.0-2.9 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
M6 | 6.4 | 18.0 | 1.4-1.8 | Rockwell B52 | DIN 9021 | 50 | 000000000 | 00000 |
M6 | 6.4 | 18.0 | 4.0-4.9 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
M6 | 6.6 | 22.0 | 1.7-2.3 | Not Rated | DIN 440-R | 1 | 000000000 | 000 |
M8 | 8.4 | 16.0 | 2.5-3.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
M8 | 8.4 | 22.0 | 4.5-5.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
M8 | 8.4 | 23.0 | 3.7-4.0 | Not Rated | DIN 6340 | 1 | 000000000 | 0000 |
M8 | 8.4 | 24.0 | 1.8-2.2 | Rockwell B52 | DIN 9021 | 25 | 000000000 | 00000 |
M8 | 9.0 | 28.0 | 2.4-3.6 | Not Rated | DIN 440-R | 1 | 000000000 | 000 |
M10 | 10.5 | 19.0 | 2.5-3.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
M10 | 10.5 | 23.0 | 4.5-5.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
M10 | 10.5 | 26.0 | 3.7-4.0 | Not Rated | DIN 6340 | 1 | 000000000 | 0000 |
M10 | 10.5 | 30.0 | 2.3-2.7 | Rockwell B52 | DIN 9021 | 10 | 000000000 | 0000 |
M10 | 11.0 | 34.0 | 2.4-3.6 | Not Rated | DIN 440-R | 1 | 000000000 | 0000 |
M12 | 12.0 | 25.0 | 2.7-3.0 | Not Rated | DIN 1440 | 1 | 000000000 | 0000 |
M12 | 13.0 | 22.0 | 2.5-3.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
M12 | 13.0 | 26.0 | 4.5-5.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
M12 | 13.0 | 35.0 | 4.4-5.1 | Not Rated | DIN 6340 | 1 | 000000000 | 0000 |
M12 | 13.0 | 37.0 | 2.7-3.3 | Rockwell B52 | DIN 9021 | 10 | 000000000 | 00000 |
M12 | 13.5 | 44.0 | 1.5-2.3 | Not Rated | DIN 440-R | 10 | 000000000 | 00000 |
M14 | 15.0 | 25.0 | 2.5-3.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
M14 | 15.0 | 27.0 | 4.5-5.4 | Rockwell B83 | __ | 1 | 000000000 | 00000 |
M16 | 17.0 | 28.0 | 3.0-3.9 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
M16 | 17.0 | 32.0 | 4.5-5.4 | Rockwell B83 | __ | 1 | 000000000 | 00000 |
M16 | 17.0 | 45.0 | 5.5-6.6 | Not Rated | DIN 6340 | 1 | 000000000 | 00000 |
M16 | 17.0 | 50.0 | 2.7-3.3 | Rockwell B52 | DIN 9021 | 5 | 000000000 | 00000 |
M16 | 17.5 | 56.0 | 4.0-6.0 | Not Rated | DIN 440-R | 1 | 000000000 | 0000 |
M18 | 19.0 | 44.0 | 1.5-2.3 | Not Rated | DIN 7349 | 10 | 000000000 | 00000 |
M20 | 21.0 | 35.0 | 3.0-3.9 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
M20 | 21.0 | 35.0 | 4.5-5.4 | Rockwell B83 | __ | 1 | 000000000 | 00000 |
M20 | 22.0 | 60.0 | 3.4-4.6 | Rockwell B52 | DIN 9021 | 1 | 000000000 | 0000 |
M20 | 22.0 | 72.0 | 5.0-7.0 | Not Rated | DIN 440-R | 1 | 000000000 | 00000 |
M22 | 23.0 | 50.0 | 7.0-8.0 | Not Rated | DIN 7349 | 1 | 000000000 | 0000 |
M24 | 25.0 | 40.0 | 3.5-4.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
M24 | 25.0 | 43.0 | 6.0-6.9 | Rockwell B83 | __ | 1 | 000000000 | 00000 |
M24 | 26.0 | 72.0 | 4.0-6.0 | Rockwell B68 | DIN 9021 | 1 | 000000000 | 0000 |
M30 | 31.0 | 44.0 | 3.5-4.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
M30 | 31.0 | 48.0 | 6.0-6.9 | Rockwell B83 | __ | 1 | 000000000 | 00000 |
M30 | 31.0 | 68.0 | 9.0-10.0 | Not Rated | DIN 7349 | 1 | 000000000 | 00000 |
M36 | 37.0 | 50.0 | 4.5-5.4 | Rockwell B83 | __ | 1 | 000000000 | 00000 |
17-7 PH Stainless Steel | ||||||||
M2 | 2.2 | 7.0 | 0.6-1.0 | Rockwell C40 | __ | 10 | 000000000 | 00000 |
M3 | 3.2 | 9.0 | 0.7-0.9 | Rockwell C40 | DIN 9021 | 10 | 000000000 | 00000 |
M6 | 7.0 | 13.6 | 2.7-4.0 | Rockwell C40 | DIN 9021 | 1 | 000000000 | 00000 |
M8 | 8.4 | 22.0 | 4.5-5.4 | Rockwell C40 | DIN 9021 | 1 | 000000000 | 00000 |
Passivated 18-8 Stainless Steel | ||||||||
M2 | 2.2 | 7.0 | 0.6-1.0 | Rockwell B75 | __ | 100 | 000000000 | 0000 |
M3 | 3.2 | 9.0 | 0.9-1.1 | Not Rated | DIN 7349 | 100 | 000000000 | 0000 |
M4 | 4.3 | 12.0 | 1.4-1.8 | Not Rated | DIN 7349 | 100 | 000000000 | 00000 |
M5 | 5.3 | 15.0 | 1.8-2.2 | Not Rated | DIN 7349 | 100 | 000000000 | 00000 |
M6 | 6.4 | 17.0 | 2.7-3.3 | Not Rated | DIN 7349 | 50 | 000000000 | 00000 |
M7 | 7.4 | 22.0 | 1.8-2.2 | Rockwell B75 | DIN 9021 | 25 | 000000000 | 00000 |
M8 | 8.4 | 21.0 | 3.7-4.3 | Not Rated | DIN 7349 | 25 | 000000000 | 00000 |
M10 | 10.5 | 25.0 | 3.7-4.3 | Not Rated | DIN 7349 | 10 | 000000000 | 0000 |
M12 | 13.0 | 30.0 | 5.4-6.6 | Not Rated | DIN 7349 | 10 | 000000000 | 00000 |
M14 | 15.0 | 36.0 | 5.4-6.6 | Not Rated | DIN 7349 | 5 | 000000000 | 00000 |
M14 | 15.0 | 44.0 | 2.7-3.3 | Rockwell B75 | DIN 9021 | 1 | 000000000 | 0000 |
M16 | 17.0 | 40.0 | 5.4-6.6 | Not Rated | DIN 7349 | 5 | 000000000 | 00000 |
M18 | 20.0 | 56.0 | 3.4-4.6 | Rockwell B75 | DIN 9021 | 1 | 000000000 | 0000 |
M20 | 21.0 | 44.0 | 7.0-9.0 | Not Rated | DIN 7349 | 1 | 000000000 | 0000 |
M24 | 25.0 | 50.0 | 9.0-11.0 | Not Rated | DIN 7349 | 1 | 000000000 | 0000 |
Black-Oxide 18-8 Stainless Steel | ||||||||
M2 | 2.2 | 7.0 | 0.6-1.0 | Rockwell B68 | __ | 10 | 000000000 | 00000 |
M2.5 | 2.7 | 8.0 | 0.7-0.9 | Rockwell B68 | DIN 9021 | 10 | 000000000 | 00000 |
M3 | 3.2 | 9.0 | 0.7-0.9 | Rockwell B68 | DIN 9021 | 10 | 000000000 | 00000 |
M4 | 4.3 | 12.0 | 0.9-1.1 | Rockwell B68 | DIN 9021 | 10 | 000000000 | 00000 |
M5 | 5.3 | 15.0 | 1.0-1.4 | Rockwell B68 | DIN 9021 | 10 | 000000000 | 00000 |
M6 | 6.4 | 17.0 | 1.0-1.3 | Not Rated | DIN 7349 | 25 | 000000000 | 00000 |
M6 | 6.4 | 18.0 | 1.4-1.8 | Rockwell B68 | DIN 9021 | 10 | 000000000 | 00000 |
M6 | 6.6 | 22.0 | 1.7-2.3 | Not Rated | DIN 440-R | 10 | 000000000 | 0000 |
M7 | 7.4 | 22.0 | 1.8-2.2 | Rockwell B68 | DIN 9021 | 10 | 000000000 | 00000 |
M8 | 8.4 | 24.0 | 1.8-2.2 | Rockwell B68 | DIN 9021 | 5 | 000000000 | 0000 |
M10 | 10.5 | 30.0 | 2.3-2.7 | Rockwell B68 | DIN 9021 | 5 | 000000000 | 00000 |
M12 | 13.0 | 37.0 | 2.7-3.3 | Rockwell B68 | DIN 9021 | 1 | 000000000 | 0000 |
M14 | 15.0 | 44.0 | 2.7-3.3 | Rockwell B68 | DIN 9021 | 1 | 000000000 | 0000 |
M16 | 17.0 | 50.0 | 2.7-3.3 | Rockwell B68 | DIN 9021 | 1 | 000000000 | 0000 |
M18 | 20.0 | 56.0 | 3.4-4.6 | Rockwell B68 | DIN 9021 | 1 | 000000000 | 0000 |
M20 | 22.0 | 60.0 | 3.4-4.6 | Rockwell B68 | DIN 9021 | 1 | 000000000 | 0000 |
316 Stainless Steel | ||||||||
M5 | 5.5 | 18.0 | 1.7-2.3 | Not Rated | DIN 440-R | 25 | 000000000 | 00000 |
M6 | 6.4 | 17.0 | 2.7-3.3 | Not Rated | DIN 6340 | 10 | 000000000 | 00000 |
M6 | 6.6 | 22.0 | 1.7-2.3 | Not Rated | DIN 440-R | 10 | 000000000 | 0000 |
M8 | 8.4 | 21.0 | 1.3-2.0 | Not Rated | DIN 7349 | 25 | 000000000 | 00000 |
M8 | 8.4 | 23.0 | 3.4-4.6 | Not Rated | DIN 6340 | 5 | 000000000 | 00000 |
M8 | 9.0 | 28.0 | 2.4-3.6 | Not Rated | DIN 440-R | 10 | 000000000 | 00000 |
M10 | 10.5 | 25.0 | 1.3-2.0 | Not Rated | DIN 7349 | 25 | 000000000 | 00000 |
M10 | 11.0 | 34.0 | 2.4-3.6 | Not Rated | DIN 440-R | 5 | 000000000 | 0000 |
M12 | 13.0 | 30.0 | 1.3-2.0 | Not Rated | DIN 7349 | 25 | 000000000 | 00000 |
M12 | 13.5 | 44.0 | 3.4-4.6 | Not Rated | DIN 440-R | 1 | 000000000 | 0000 |
M16 | 17.0 | 40.0 | 5.4-6.0 | Not Rated | DIN 7349 | 1 | 000000000 | 0000 |
M24 | 26.8 | 72.0 | 4.0-6.0 | Rockwell B68 | DIN 9021 | 1 | 000000000 | 0000 |
Passivated 316 Stainless Steel | ||||||||
M2 | 2.2 | 7.0 | 0.6-1.0 | Rockwell B75 | __ | 100 | 000000000 | 0000 |
M2.5 | 2.7 | 8.0 | 0.7-0.9 | Rockwell B75 | DIN 9021 | 100 | 000000000 | 0000 |
M3 | 3.2 | 9.0 | 0.7-0.9 | Rockwell B75 | DIN 9021 | 50 | 000000000 | 0000 |
M4 | 4.3 | 12.0 | 0.9-1.1 | Rockwell B75 | DIN 9021 | 50 | 000000000 | 0000 |
M5 | 5.3 | 15.0 | 1.0-1.4 | Rockwell B75 | DIN 9021 | 50 | 000000000 | 00000 |
M6 | 6.4 | 18.0 | 1.4-1.8 | Rockwell B75 | DIN 9021 | 25 | 000000000 | 0000 |
M7 | 7.4 | 22.0 | 1.8-2.2 | Rockwell B75 | DIN 9021 | 10 | 000000000 | 0000 |
M8 | 8.4 | 24.0 | 1.8-2.2 | Rockwell B75 | DIN 9021 | 10 | 000000000 | 0000 |
M10 | 10.5 | 30.0 | 2.3-2.7 | Rockwell B75 | DIN 9021 | 5 | 000000000 | 0000 |
M12 | 13.0 | 37.0 | 2.7-3.3 | Rockwell B75 | DIN 9021 | 1 | 000000000 | 0000 |
M14 | 15.0 | 44.0 | 2.7-3.3 | Rockwell B75 | DIN 9021 | 1 | 000000000 | 0000 |
M16 | 17.0 | 50.0 | 2.7-3.3 | Rockwell B75 | DIN 9021 | 1 | 000000000 | 0000 |
M18 | 20.0 | 56.0 | 3.4-4.6 | Rockwell B75 | DIN 9021 | 1 | 000000000 | 0000 |
M20 | 22.0 | 60.0 | 3.4-4.6 | Rockwell B75 | DIN 9021 | 1 | 000000000 | 0000 |
Bumax 88 Stainless Steel | ||||||||
M6 | 6.4 | 18.0 | 1.4-1.8 | Rockwell B91 | DIN 9021, ISO 7093 | 5 | 000000000 | 00000 |
M8 | 8.4 | 24.0 | 1.8-2.2 | Rockwell B91 | DIN 9021, ISO 7093 | 5 | 000000000 | 00000 |
M10 | 10.5 | 30.0 | 2.3-2.7 | Rockwell B91 | DIN 9021, ISO 7093 | 1 | 000000000 | 0000 |
M12 | 13.0 | 37.0 | 2.7-3.3 | Rockwell B91 | DIN 9021, ISO 7093 | 1 | 000000000 | 00000 |
USS Washers
USS washers generally have a larger ID and OD than SAE washers.
Hot-dipped galvanized steel washers are 10 times as corrosion resistant as zinc-plated washers.
For technical drawings and 3-D models, click on a part number.
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. Stronger and slightly more corrosion resistant than 316 stainless steel, Bumax 109 stainless steel washers are best for marine environments and chemical-processing plants.
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.
For Screw Size | ID, mm | OD, mm | Thickness, mm | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
Bumax 109 Stainless Steel | ||||||||
---|---|---|---|---|---|---|---|---|
M6 | 6.4 | 12.0 | 1.4-1.8 | Rockwell C30 | DIN 125; ISO 7089 | 10 | 000000000 | 00000 |
M8 | 8.4 | 16.0 | 1.4-1.8 | Rockwell C30 | DIN 125; ISO 7089 | 10 | 000000000 | 0000 |
M10 | 10.5 | 20.0 | 1.8-2.2 | Rockwell C30 | DIN 125; ISO 7089 | 5 | 000000000 | 0000 |
M12 | 13.0 | 24.0 | 2.3-2.7 | Rockwell C30 | DIN 125; ISO 7089 | 5 | 000000000 | 00000 |
Zinc-Plated Class 10.9 Steel | ||||||||
M6 | 6.4 | 12.0 | 1.4-1.8 | Rockwell C30 | DIN 125; ISO 7089 | 100 | 000000000 | 00000 |
M8 | 8.4 | 16.0 | 1.4-1.8 | Rockwell C30 | DIN 125; ISO 7089 | 50 | 000000000 | 0000 |
M10 | 10.5 | 20.0 | 1.8-2.2 | Rockwell C30 | DIN 125; ISO 7089 | 50 | 000000000 | 00000 |
M12 | 13.0 | 24.0 | 2.3-2.7 | Rockwell C30 | DIN 125; ISO 7089 | 25 | 000000000 | 0000 |
M14 | 15.0 | 28.0 | 2.3-2.7 | Rockwell C30 | DIN 125; ISO 7089 | 25 | 000000000 | 00000 |
M16 | 17.0 | 30.0 | 2.7-3.3 | Rockwell C30 | DIN 125; ISO 7089 | 25 | 000000000 | 00000 |
M20 | 21.0 | 37.0 | 2.7-3.3 | Rockwell C30 | DIN 125; ISO 7089 | 10 | 000000000 | 0000 |
M24 | 25.0 | 44.0 | 3.7-4.3 | Rockwell C30 | DIN 125; ISO 7089 | 10 | 000000000 | 00000 |