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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 | 0000 |
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" | Rockwell C40 | 1 | 000000000 | 00000 |
| 1 3/4" | 1.875" | 3.375" | 0.240"-0.260" | Rockwell 15N80 | 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 | 00000 |
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 ultra-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. | |
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 Ultra-Corrosion-Resistant Coated Steel | ||||||||
| 1 3/4" | 1.875" | 4.000" | 0.153"-0.213" | Not Rated | USS Standards; ASME B18.21.1 | 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 | 0000 |
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.
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.
Wedge Lock Washers
Also known as NORD-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.
For technical drawings and 3-D models, click on a part number.
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 |