System of Measurement System of Measurement |
---|
|
For Screw Size For Screw Size |
---|
|
Material Material |
---|
|
Finish Finish |
---|
|
Washer Type Washer Type |
---|
![]() | Split Lock |
Thickness Thickness | Show |
---|
|
Thickness Thickness | Hide |
---|
Specifications Met Specifications Met |
---|
Hardness Hardness |
---|
|
Fastener Strength Grade/Class Fastener StrengthGrade/Class |
---|
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
---|
RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
---|
|
REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
---|
|
About Washers
More
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.
Hot-dipped galvanized steel washers are 10 times as corrosion resistant as zinc- and zinc yellow-chromate plated washers.
Zinc-aluminum-coated steel washers are 40 times as corrosion resistant as zinc-plated washers and comparable to Magni-coated washers.
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 | ||||||||
---|---|---|---|---|---|---|---|---|
7/8" | 0.894" | 1.459" | 0.219" | Rockwell C38 | ASME B18.21.1 | 5 | 00000000 | 000000 |
316 Stainless Steel | ||||||||
7/8" | 0.894" | 1.459" | 0.219" | Rockwell C35 | ASME B18.21.1 | 5 | 000000000 | 0000 |
18-8 Stainless Steel | ||||||||
7/8" | 0.894" | 1.459" | 0.219" | Rockwell C35 | ASME B18.21.1 | 5 | 000000000 | 0000 |
Zinc-Plated Steel | ||||||||
7/8" | 0.894" | 1.459" | 0.219" | Rockwell C38 | ASME B18.21.1 | 25 | 000000000 | 00000 |
Zinc Yellow-Chromate Plated Grade 8 Steel | ||||||||
7/8" | 0.894" | 1.459" | 0.219" | Rockwell C38 | ASME B18.21.1 | 10 | 000000000 | 00000 |
Hot-Dipped Galvanized Steel | ||||||||
7/8" | 0.894" | 1.459" | 0.219" | Rockwell C38 | ASME B18.21.1 | 10 | 000000000 | 00000 |
Zinc-Aluminum Coated Carbon Steel | ||||||||
7/8" | 0.894" | 1.459" | 0.219" | Rockwell C38 | ASME B18.21.1 | 1 | 00000000 | 0000 |
Steel | ||||||||
7/8" | 0.894" | 1.459" | 0.219" | Rockwell C38 | ASME B18.21.1 | 25 | 000000000 | 00000 |
Mil. Spec. Split Lock Washers

Choose these washers for their adherence to strict military standards for material and construction. As a screw is tightened, they flatten to add tension to the joint and prevent loosening from small amounts of vibration.
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. | |
Zinc Yellow-Chromate Plated Steel | ||||||||
---|---|---|---|---|---|---|---|---|
MS35338 | ||||||||
7/8" | 0.878" | 1.459" | 0.219" | Rockwell C38 | ASME B18.21.1; MS35338-52 | 5 | 000000000 | 00000 |