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General Purpose Washers
Use these washers to evenly distribute the load under bolt or screw heads and nuts when fastening. They can also act as spacers.
Black corrosion-resistant-coated steel washers resist chemicals and withstand 1,000 hours of salt spray.
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 | Washer Designation | Specifications Met | Pkg. Qty. | Pkg. | |
Black Corrosion-Resistant-Coated Grade 8 Steel | |||||||||
---|---|---|---|---|---|---|---|---|---|
1/4" | 0.312" | 0.750" | 0.055" to 0.072" | Rockwell C38 | USS | __ | 10 | 000000000 | 000000 |
5/16" | 0.375" | 0.875" | 0.064" to 0.080" | Rockwell C38 | USS | ASME B18.21.1 | 10 | 000000000 | 00000 |
3/8" | 0.438" | 1.000" | 0.064" to 0.080" | Rockwell C38 | USS | ASME B18.21.1 | 5 | 000000000 | 0000 |
7/16" | 0.500" | 1.250" | 0.064" to 0.080" | Rockwell C38 | USS | ASME B18.21.1 | 5 | 000000000 | 00000 |
1/2" | 0.562" | 1.375" | 0.097" to 0.121" | Rockwell C38 | USS | ASME B18.21.1 | 5 | 000000000 | 00000 |
9/16" | 0.625" | 1.500" | 0.097" to 0.121" | Rockwell C38 | USS | __ | 5 | 000000000 | 00000 |
5/8" | 0.688" | 1.750" | 0.122" to 0.146" | Rockwell C38 | USS | ASME B18.21.1 | 1 | 000000000 | 0000 |
3/4" | 0.812" | 2.000" | 0.122" to 0.146" | Rockwell C38 | USS | ASME B18.21.1 | 1 | 000000000 | 0000 |
7/8" | 0.938" | 2.250" | 0.136" to 0.160" | Rockwell C38 | USS | ASME B18.21.1 | 1 | 000000000 | 0000 |
1" | 1.062" | 2.500" | 0.136" to 0.160" | Rockwell C38 | USS | ASME B18.21.1 | 1 | 000000000 | 0000 |
1 1/8" | 1.250" | 2.750" | 0.136" to 0.160" | Rockwell C38 | USS | ASME B18.21.1 | 1 | 000000000 | 00000 |
1 1/4" | 1.375" | 3.000" | 0.136" to 0.160" | Rockwell C38 | USS | ASME B18.21.1 | 1 | 000000000 | 00000 |
1 3/8" | 1.500" | 3.250" | 0.136" to 0.160" | Rockwell C38 | USS | __ | 1 | 000000000 | 00000 |
1 1/2" | 1.625" | 3.500" | 0.136" to 0.160" | Rockwell C38 | USS | __ | 1 | 000000000 | 00000 |
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.
Steel washers are stronger and more wear resistant than stainless steel washers. Zinc-flake-coated and black corrosion-resistant-coated steel washers have the same level of corrosion resistance—both resist corrosion from chemicals and withstand 1,000 hours of salt spray. The black corrosion-resistant-coated steel washers have a black semi-gloss finish.
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. | |
Black Corrosion-Resistant-Coated Steel | ||||||||
---|---|---|---|---|---|---|---|---|
M4 | 4.3 | 9.0 | 0.7-0.9 | Rockwell B75 | DIN 125; ISO 7089 | 10 | 000000000 | 00000 |
M5 | 5.3 | 10.0 | 0.9-1.1 | Rockwell B75 | DIN 125; ISO 7089 | 10 | 000000000 | 0000 |
M6 | 6.4 | 11.0 | 1.4-1.8 | Rockwell B76 | DIN 433; ISO 7092 | 10 | 000000000 | 00000 |
M6 | 6.4 | 12.0 | 1.4-1.8 | Rockwell B75 | DIN 125; ISO 7089 | 10 | 000000000 | 00000 |
M7 | 7.4 | 14.0 | 1.4-1.8 | Rockwell B75 | DIN 125; ISO 7089 | 5 | 000000000 | 0000 |
M8 | 8.4 | 15.0 | 1.4-1.8 | Rockwell B76 | DIN 433; ISO 7092 | 10 | 000000000 | 00000 |
M8 | 8.4 | 16.0 | 1.4-1.8 | Rockwell B75 | DIN 125; ISO 7089 | 5 | 000000000 | 0000 |
M10 | 10.5 | 18.0 | 1.4-1.8 | Rockwell B76 | DIN 433; ISO 7092 | 10 | 000000000 | 00000 |
M10 | 10.5 | 20.0 | 1.8-2.2 | Rockwell B75 | DIN 125; ISO 7089 | 5 | 000000000 | 0000 |
M12 | 13.0 | 20.0 | 1.8-2.2 | Rockwell B76 | DIN 433; ISO 7092 | 10 | 000000000 | 00000 |
M12 | 13.0 | 24.0 | 2.3-2.7 | Rockwell B75 | DIN 125; ISO 7089 | 5 | 000000000 | 0000 |
M14 | 15.0 | 28.0 | 2.3-2.7 | Rockwell B75 | DIN 125; ISO 7089 | 5 | 000000000 | 0000 |
M16 | 17.0 | 30.0 | 2.7-3.3 | Not Rated | DIN 125; ISO 7089 | 5 | 000000000 | 0000 |
M18 | 19.0 | 34.0 | 2.7-3.3 | Not Rated | DIN 125; ISO 7089 | 5 | 000000000 | 0000 |
M20 | 21.0 | 37.0 | 2.7-3.3 | Not Rated | DIN 125; ISO 7089 | 5 | 000000000 | 0000 |
M24 | 25.0 | 44.0 | 3.3-4.3 | Not Rated | DIN 125; ISO 7089 | 1 | 000000000 | 0000 |
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.
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. | |
Black Corrosion-Resistant-Coated Steel | |||||||||
---|---|---|---|---|---|---|---|---|---|
3/16" | 0.219" | 1.000" | 0.051"-0.084" | Not Rated | __ | __ | 10 | 000000000 | 000000 |
3/16" | 0.219" | 1.250" | 0.051"-0.084" | Not Rated | __ | __ | 10 | 000000000 | 00000 |
1/4" | 0.281" | 1.000" | 0.051"-0.084" | Not Rated | __ | __ | 10 | 000000000 | 00000 |
1/4" | 0.281" | 1.250" | 0.051"-0.084" | Not Rated | __ | __ | 10 | 000000000 | 00000 |
1/4" | 0.281" | 1.500" | 0.051"-0.084" | Not Rated | __ | __ | 5 | 000000000 | 0000 |
1/4" | 0.313" | 0.750" | 0.090"-0.110" | Rockwell C38 | ASME B18.21.1 | USS | 5 | 000000000 | 0000 |
5/16" | 0.344" | 1.250" | 0.051"-0.084" | Not Rated | __ | __ | 10 | 000000000 | 00000 |
5/16" | 0.344" | 1.500" | 0.051"-0.084" | Not Rated | __ | __ | 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" | 0.406" | 1.250" | 0.051"-0.084" | Not Rated | __ | __ | 10 | 000000000 | 00000 |
3/8" | 0.406" | 1.500" | 0.051"-0.084" | Not Rated | __ | __ | 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" | 0.531" | 2.000" | 0.051"-0.084" | Not Rated | __ | __ | 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.
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.
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. | |
Black Corrosion-Resistant-Coated Steel | ||||||||
---|---|---|---|---|---|---|---|---|
M4 | 4.3 | 12.0 | 0.9-1.1 | Rockwell B56 | DIN 9021, ISO 7093 | 5 | 000000000 | 00000 |
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 |
SAE Washers
SAE washers generally have a smaller ID and OD than USS washers.
Black Corrosion-resistant coated and zinc-flake-coated steel washers resist chemicals and withstand 1,000 hours of salt spray.
For technical drawings and 3-D models, click on a part number.
For Screw Size | ID | OD | Thick. | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
Black Corrosion-Resistant-Coated Steel | ||||||||
---|---|---|---|---|---|---|---|---|
No. 4 | 0.125" | 0.312" | 0.020"-0.040" | Not Rated | __ | 10 | 000000000 | 000000 |
No. 5 | 0.141" | 0.281" | 0.020"-0.040" | Not Rated | __ | 10 | 000000000 | 00000 |
No. 6 | 0.156" | 0.375" | 0.036"-0.065" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
No. 8 | 0.188" | 0.438" | 0.036"-0.065" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
No. 10 | 0.219" | 0.500" | 0.036"-0.065" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
No. 12 | 0.250" | 0.562" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
1/4" | 0.281" | 0.625" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
5/16" | 0.344" | 0.688" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
3/8" | 0.406" | 0.812" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
7/16" | 0.469" | 0.922" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
1/2" | 0.531" | 1.062" | 0.074"-0.121" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
9/16" | 0.594" | 1.156" | 0.074"-0.121" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
5/8" | 0.656" | 1.312" | 0.074"-0.121" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
3/4" | 0.812" | 1.469" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 0000 |
7/8" | 0.938" | 1.750" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 00000 |
1" | 1.062" | 2.000" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 00000 |
1 1/8" | 1.250" | 2.250" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 00000 |
1 1/4" | 1.375" | 2.500" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
1 3/8" | 1.500" | 2.750" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
1 1/2" | 1.625" | 3.000" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
Black Corrosion-Resistant-Coated Grade 8 Steel | ||||||||
1/4" | 0.281" | 0.625" | 0.055"-0.065" | Rockwell C38 | ASME B18.21.1 | 5 | 000000000 | 0000 |
5/16" | 0.344" | 0.688" | 0.055"-0.065" | Rockwell C38 | ASME B18.21.1 | 5 | 000000000 | 0000 |
3/8" | 0.406" | 0.813" | 0.055"-0.065" | Rockwell C38 | ASME B18.21.1 | 5 | 000000000 | 0000 |
7/16" | 0.469" | 0.922" | 0.055"-0.065" | Rockwell C38 | ASME B18.21.1 | 5 | 000000000 | 0000 |
1/2" | 0.531" | 1.063" | 0.100"-0.116" | Rockwell C38 | ASME B18.21.1 | 5 | 000000000 | 00000 |
9/16" | 0.594" | 1.188" | 0.100"-0.116" | Rockwell C38 | ASME B18.21.1 | 5 | 000000000 | 00000 |
5/8" | 0.656" | 1.313" | 0.122"-0.138" | Rockwell C38 | ASME B18.21.1 | 5 | 000000000 | 00000 |
3/4" | 0.813" | 1.469" | 0.122"-0.138" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 0000 |
7/8" | 0.938" | 1.750" | 0.136"-0.152" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 0000 |
1" | 1.063" | 2.000" | 0.136"-0.160" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 0000 |
1 1/4" | 1.375" | 2.500" | 0.136"-0.160" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 0000 |
1 1/2" | 1.625" | 3.000" | 0.136"-0.160" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 00000 |
1 3/4" | 1.875" | 3.375" | 0.178"-0.196" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 00000 |
2" | 2.125" | 3.750" | 0.178"-0.196" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 00000 |
USS Washers
USS washers generally have a larger ID and OD than SAE washers.
Black corrosion-resistant-coated steel washers resist chemicals and withstand 1,000 hours of salt spray.
For technical drawings and 3-D models, click on a part number.
For Screw Size | ID | OD | Thick. | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
Black Corrosion-Resistant-Coated Steel | ||||||||
---|---|---|---|---|---|---|---|---|
1/4" | 0.312" | 0.750" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 000000 |
5/16" | 0.375" | 0.875" | 0.064"-0.104" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
3/8" | 0.438" | 1.000" | 0.064"-0.104" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
7/16" | 0.500" | 1.250" | 0.064"-0.104" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
1/2" | 0.562" | 1.375" | 0.086"-0.132" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 0000 |
9/16" | 0.625" | 1.469" | 0.086"-0.132" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 00000 |
5/8" | 0.688" | 1.750" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 0000 |
3/4" | 0.812" | 2.000" | 0.122"-0.177" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 00000 |
7/8" | 0.938" | 2.250" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 00000 |
1" | 1.062" | 2.500" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 00000 |
1 1/8" | 1.250" | 2.750" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
1 1/4" | 1.375" | 3.000" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
1 3/8" | 1.500" | 3.250" | 0.153"-0.213" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
1 1/2" | 1.625" | 3.500" | 0.153"-0.213" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
1 5/8" | 1.750" | 3.750" | 0.153"-0.213" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
1 3/4" | 1.875" | 4.000" | 0.153"-0.213" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
1 7/8" | 2.000" | 4.250" | 0.153"-0.213" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
2" | 2.125" | 4.500" | 0.153"-0.213" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 00000 |
2 1/4" | 2.375" | 4.750" | 0.193"-0.248" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 00000 |
2 1/2" | 2.625" | 5.000" | 0.210"-0.280" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 00000 |
2 3/4" | 2.875" | 5.250" | 0.228"-0.310" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 00000 |
3" | 3.125" | 5.500" | 0.249"-0.327" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 00000 |
Push-On Retaining Caps
Use these caps to hold components in place and protect shaft ends. Install these caps with a hammer or push them into place by hand.
Corrosion-resistant-coated finish is more corrosion resistant in wet environments than zinc plated finish. Also known as black luster.
For technical drawings and 3-D models, click on a part number.
For OD | OD | Ht. | Insert Material | Min. Hardness | Magnetic Properties | Pkg. Qty. | Pkg. | |
Black Corrosion-Resistant-Coated 1050 Spring Steel | ||||||||
---|---|---|---|---|---|---|---|---|
1/4" | 9/16" | 7/32" | Steel | Not Rated | Magnetic | 5 | 000000000 | 00000 |
5/16" | 5/8" | 1/4" | Steel | Not Rated | Magnetic | 5 | 000000000 | 0000 |
3/8" | 3/4" | 9/32" | Steel | Not Rated | Magnetic | 5 | 000000000 | 00000 |
1/2" | 15/16" | 21/64" | Steel | Not Rated | Magnetic | 5 | 000000000 | 00000 |