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| Split Lock | Square |
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| Wave | Wedge Lock |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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About Washers
More
General Purpose Washers
316 stainless steel washers have excellent resistance to chemicals and salt water. They may be mildly magnetic.
18-8 stainless steel and 17-7 PH stainless steel washers have good chemical resistance and may be mildly magnetic. Black-oxide 18-8 stainless steel washers have a matte-black finish.
Zinc yellow-chromate and chrome-plated steel washers are corrosion resistant in wet environments.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Hardness | Pkg. Qty. | Pkg. | |
316 Stainless Steel | |||||||
|---|---|---|---|---|---|---|---|
| 1 3/4" | 1.812" | 3.500" | 0.133"-0.147" | Not Rated | 1 | 000000000 | 00000 |
18-8 Stainless Steel | |||||||
| 1 3/4" | 1.812" | 3.500" | 0.133"-0.147" | Not Rated | 1 | 000000000 | 0000 |
Black-Oxide 18-8 Stainless Steel | |||||||
| 1 3/4" | 1.812" | 3.500" | 0.100"-0.180" | Not Rated | 1 | 000000000 | 00000 |
Zinc Yellow-Chromate Plated Grade 8 Steel | |||||||
| 1 3/4" | 1.875" | 3.375" | 0.178"-0.196" | Rockwell C38 | 5 | 000000000 | 00000 |
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.
18-8 stainless steel and 17-4 PH stainless steel washers have good chemical resistance and may be mildly magnetic. Black-oxide steel washers have mild corrosion resistance in dry environments.
Hot-dipped galvanized steel washers are 10 times as corrosion resistant as zinc- and zinc yellow-chromate plated washers.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Hardness | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||
|---|---|---|---|---|---|---|---|
| 1 3/4" | 1.812" | 3.875" | 0.170"-0.200" | Not Rated | 1 | 000000000 | 000000 |
| 1 3/4" | 1.875" | 3.375" | 0.235"-0.265" | Rockwell B83 | 1 | 000000000 | 00000 |
Black-Oxide Steel | |||||||
| 1 3/4" | 1.875" | 3.375" | 0.235"-0.265" | Not Rated | 1 | 000000000 | 00000 |
| 1 3/4" | 1.875" | 3.375" | 0.240"-0.260" | Not Rated | 1 | 000000000 | 00000 |
Hot-Dipped Galvanized Steel | |||||||
| 1 3/4" | 2.000" | 4.000" | 0.302"-0.332" | Rockwell B40 | 1 | 000000000 | 00000 |
Mil. Spec. Washers
Choose these washers for their adherence to strict military standards for material and construction.
Cadmium- and zinc yellow-chromate plated steel washers are corrosion resistant 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. | |
Cadmium-Plated Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
MS27183 | ||||||||
| 1 3/4" | 1.875" | 4.000" | 0.153"-0.213" | Rockwell B40 | MS27183-34; ASME B18.21.1 | 1 | 000000000 | 000000 |
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. | Color | Finish Manufacturer Equivalent | Pkg. | |
Black Corrosion-Resistant-Coated Grade 8 Steel | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 3/4" | 1.875" | 3.375" | 0.178"-0.196" | Rockwell C38 | SAE Standards; ASME B18.21.1 | 1 | Black | Black Luster | 000000000 | 000000 |
USS Washers
USS washers generally have a larger ID and OD than SAE washers.
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. Black-oxide washers have a matte-black finish.
Zinc-plated steel washers are corrosion resistant in wet environments.
Hot-dipped galvanized steel washers are 10 times as corrosion resistant as zinc-plated 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 | Finish Manufacturer Equivalent | Pkg. Qty. | Pkg. | |
316 Stainless Steel | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 3/4" | 1.875" | 4.000" | 0.153"-0.213" | Not Rated | USS Standards; ASME B18.21.1 | __ | 1 | 000000000 | 000000 |
18-8 Stainless Steel | |||||||||
| 1 3/4" | 1.875" | 4.000" | 0.153"-0.213" | Not Rated | USS Standards; ASME B18.21.1 | __ | 1 | 000000000 | 00000 |
Black-Oxide 18-8 Stainless Steel | |||||||||
| 1 3/4" | 1.875" | 4.000" | 0.153"-0.213" | Not Rated | USS Standards; ASME B18.21.1 | __ | 1 | 000000000 | 00000 |
Zinc-Plated Steel | |||||||||
| 1 3/4" | 1.875" | 4.000" | 0.153"-0.213" | Not Rated | USS Standards; ASME B18.21.1 | __ | 5 | 000000000 | 00000 |
Hot-Dipped Galvanized Steel | |||||||||
| 1 3/4" | 1.875" | 4.000" | 0.153"-0.213" | Not Rated | USS Standards; ASME B18.21.1 | __ | 5 | 000000000 | 00000 |
Black Corrosion-Resistant-Coated Steel | |||||||||
| 1 3/4" | 1.875" | 4.000" | 0.153"-0.213" | Not Rated | USS Standards; ASME B18.21.1 | Black Luster | 1 | 000000000 | 0000 |
Steel | |||||||||
| 1 3/4" | 1.875" | 4.000" | 0.153"-0.213" | Not Rated | USS Standards; ASME B18.21.1 | __ | 5 | 000000000 | 00000 |
Washers for Structural Applications
Designed for use with A325 structural screws, studs, and nuts, these washers are often used for construction and exterior building applications.
Hot-dipped galvanized washers are corrosion resistant in wet environments.
For technical drawings and 3-D models, click on a part number.
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.
Black-oxide steel washers are mildly corrosion resistant in dry environments.
Zinc-plated steel washers are corrosion resistant in wet 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.
Split Lock Washers
As a screw is tightened, these washers flatten to add tension to the joint and prevent loosening from small amounts of vibration.
Black-oxide steel washers are mildly corrosion resistant in dry environments.
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.
Zinc- and zinc yellow-chromate plated steel washers are corrosion resistant in wet environments.
Washers that meet ASME B18.21.1 adhere to strict dimensional standards. Steel washers also meet standards for material properties.
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-Oxide Carbon Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1 3/4" | 1.789" | 2.679" | 0.389" | Rockwell C38 | ASME B18.21.1 | 1 | 00000000 | 000000 |
316 Stainless Steel | ||||||||
| 1 3/4" | 1.758" | 2.679" | 0.389" | Rockwell C35 | ASME B18.21.1 | 1 | 000000000 | 00000 |
18-8 Stainless Steel | ||||||||
| 1 3/4" | 1.789" | 2.679" | 0.389" | Rockwell C35 | ASME B18.21.1 | 1 | 000000000 | 00000 |
Zinc-Plated Steel | ||||||||
| 1 3/4" | 1.789" | 2.679" | 0.389" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 0000 |
Steel | ||||||||
| 1 3/4" | 1.789" | 2.679" | 0.389" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 0000 |
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.
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. | Hardness | Pkg. Qty. | Pkg. | |
Zinc-Flake-Coated Steel | |||||||
|---|---|---|---|---|---|---|---|
| 1 3/4", M45 | 1.820" | 2.760" | 0.270"-0.290" | Rockwell C46 | 1 | 000000000 | 000000 |
Triple-Wave Washers
With three points of surface contact, these washers provide more stability than single-wave washers. They are curved and flexible to act like springs, compensating for tolerance variations and uneven surfaces. You can also use them to damp vibration.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Overall Ht. | Hardness | Pkg. Qty. | Pkg. | |
Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1 3/4" | 1.840" | 2.375" | 0.025" | 0.168" | Rockwell C52 | 5 | 000000000 | 000000 |
Leveling Washers
Also known as spherical washers, these consist of a male and female washer that, when nested, swivel slightly to compensate for tolerance variations and uneven surfaces. They're good for die and fixturing applications.
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.
For technical drawings and 3-D models, click on a part number.
Washers | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Male | Female | Replacement Male Washers | Replacement Female Washers | ||||||||||||
| For Screw Size | ID (A) | OD (B) | Radius | ID (C) | OD (D) | Radius | Thick. (E) | Max. Angle of Correction | Hardness | Each | Each | Each | |||
18-8 Stainless Steel | |||||||||||||||
| 1 3/4" | 1.812" | 3.250" | 3.500" | 1.875" | 3.250" | 3.500" | 0.673"-0.703" | 3° | Rockwell B80 | 000000000 | 000000 | 000000000 | 000000 | 000000000 | 000000 |
Black-Oxide Steel | |||||||||||||||
| 1 3/4" | 1.812" | 3.250" | 3.500" | 1.875" | 3.250" | 3.500" | 0.673"-0.703" | 3° | Rockwell C48 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 |