About Washers
More
Washers for Square-Neck Bolts
A square hole prevents these washers from turning with the bolt or shaft. They work with square shafts and rods and square-neck bolts such as carriage bolts.
18-8 stainless steel washers have good chemical resistance and may be mildly magnetic.
Zinc-plated steel washers resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
For Screw Size | Inside Wd. | OD | Thick. | Hardness | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||
|---|---|---|---|---|---|---|---|
| No. 10 | 0.204" | 0.437" | 0.025"-0.035" | Not Rated | 50 | 000000000 | 000000 |
| No. 10 | 0.226" | 0.500" | 0.043"-0.053" | Not Rated | 50 | 000000000 | 00000 |
| No. 10 | 0.253" | 0.561" | 0.028"-0.034" | Not Rated | 50 | 000000000 | 00000 |
| 1/4" | 0.320" | 0.680" | 0.055"-0.065" | Not Rated | 25 | 000000000 | 00000 |
| 5/16" | 0.385" | 0.750" | 0.043"-0.053" | Not Rated | 25 | 000000000 | 00000 |
| 3/8" | 0.392" | 0.900" | 0.085"-0.095" | Not Rated | 10 | 000000000 | 00000 |
| 3/8" | 0.405" | 0.700" | 0.055"-0.065" | Not Rated | 25 | 000000000 | 00000 |
| 7/16" | 0.517" | 0.937" | 0.055"-0.065" | Not Rated | 25 | 000000000 | 00000 |
| 1/2" | 0.555" | 1.000" | 0.055"-0.065" | Not Rated | 10 | 000000000 | 00000 |
| 1/2" | 0.617" | 1.125" | 0.055"-0.065" | Not Rated | 10 | 000000000 | 00000 |
| 5/8" | 0.650" | 1.500" | 0.115"-0.125" | Not Rated | 5 | 000000000 | 00000 |
| 5/8" | 0.700" | 1.250" | 0.055"-0.065" | Not Rated | 10 | 000000000 | 00000 |
| 3/4" | 0.812" | 1.375" | 0.055"-0.065" | Not Rated | 5 | 000000000 | 0000 |
Zinc-Plated Steel | |||||||
| No. 10 | 0.204" | 0.437" | 0.025"-0.035" | Not Rated | 25 | 000000000 | 00000 |
| No. 10 | 0.226" | 0.500" | 0.043"-0.053" | Not Rated | 25 | 000000000 | 00000 |
| No. 10 | 0.253" | 0.561" | 0.028"-0.034" | Not Rated | 25 | 000000000 | 00000 |
| 1/4" | 0.320" | 0.680" | 0.055"-0.065" | Not Rated | 25 | 000000000 | 00000 |
| 5/16" | 0.385" | 0.750" | 0.043"-0.053" | Not Rated | 25 | 000000000 | 00000 |
| 3/8" | 0.392" | 0.900" | 0.085"-0.095" | Not Rated | 25 | 000000000 | 00000 |
| 3/8" | 0.405" | 0.700" | 0.055"-0.065" | Not Rated | 25 | 000000000 | 00000 |
| 7/16" | 0.517" | 0.937" | 0.055"-0.065" | Not Rated | 25 | 000000000 | 00000 |
| 1/2" | 0.555" | 1.000" | 0.055"-0.065" | Not Rated | 25 | 000000000 | 00000 |
| 1/2" | 0.617" | 1.125" | 0.055"-0.065" | Not Rated | 25 | 000000000 | 00000 |
| 5/8" | 0.650" | 1.500" | 0.115"-0.125" | Not Rated | 25 | 000000000 | 00000 |
| 5/8" | 0.700" | 1.250" | 0.055"-0.065" | Not Rated | 25 | 000000000 | 00000 |
| 3/4" | 0.812" | 1.375" | 0.055"-0.065" | Not Rated | 10 | 000000000 | 00000 |
Lock Washers for Square-Neck Bolts
Designed for use with square-neck bolts such as carriage bolts, these washers have teeth that dig into wood and other soft material to prevent rotation. They’re zinc-plated steel for corrosion resistance in wet environments.
For technical drawings and 3-D models, click on a part number.