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General Purpose Washers
Steel
 |
 |
Zinc-Yellow-Chromate-Plated Steel—With the same corrosion resistance as zinc-plated steel, these withstand occasional exposure to moisture.
Black Super-Corrosion-Resistant-Coated Steel—Combines a finished appearance with the rust resistance of 316 stainless steel. The coating has been tested to extreme standards, including 1,000 hours of salt spray resistance, to hold up in wet and outdoor environments. Also known as black luster.
Material Certificate—Washers include a report with a traceable lot number.
For Fastener Strength Grade/Class—If you require screws or nuts with a specific fastener strength rating, make sure your washer matches the grade or class.
For Screw Size | ID | OD | Thk. | For Fastener Strength Grade/Class | Certificate Type | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|---|---|
Zinc-Yellow-Chromate-Plated Steel | ||||||||||
| 1/4" | 0.281" | 0.625" | 0.051" to 0.080" | SAE Grade 8 | Material Certificate | 100 | 98023A115 | 000000 | ||
| 5/16" | 0.344" | 0.688" | 0.051" to 0.080" | SAE Grade 8 | Material Certificate | 50 | 98023A116 | 0000 | ||
| 3/8" | 0.406" | 0.812" | 0.051" to 0.080" | SAE Grade 8 | Material Certificate | 50 | 98023A117 | 0000 | ||
| 1/2" | 0.531" | 1.062" | 0.074" to 0.121" | SAE Grade 8 | Material Certificate | 25 | 98023A118 | 0000 | ||
| 5/8" | 0.656" | 1.312" | 0.074" to 0.121" | SAE Grade 8 | Material Certificate | 10 | 98023A119 | 0000 | ||
| 5/8" | 0.656" | 1.312" | 0.122" to 0.146" | SAE Grade 8 | — | 25 | 98023A035 | 00000 | ||
| 3/4" | 0.812" | 1.469" | 0.108" to 0.160" | SAE Grade 8 | Material Certificate | 10 | 98023A121 | 00000 | ||
| 1 3/4" | 1.875" | 3.375" | 0.178" to 0.196" | SAE Grade 8 | — | 5 | 98023A044 | 00000 | ||
| 2" | 2.125" | 3.750" | 0.178" to 0.196" | SAE Grade 8 | — | 1 | 98023A045 | 0000 | ||
| 2 1/4" | 2.375" | 4.750" | 0.193" to 0.248" | SAE Grade 8 | — | 1 | 98026A126 | 00000 | ||
| 2 1/2" | 2.625" | 5.000" | 0.210" to 0.280" | SAE Grade 8 | — | 1 | 98026A127 | 00000 | ||
| 2 3/4" | 2.875" | 5.250" | 0.228" to 0.320" | SAE Grade 8 | — | 1 | 98026A128 | 00000 | ||
| 3" | 3.125" | 5.500" | 0.249" to 0.327" | SAE Grade 8 | — | 1 | 98026A129 | 00000 | ||
Black Super-Corrosion-Resistant-Coated Steel | ||||||||||
| 1/4" | 0.312" | 0.750" | 0.055" to 0.072" | SAE Grade 8 | Material Certificate | 10 | 98026A111 | 00000 | ||
| 5/16" | 0.375" | 0.875" | 0.064" to 0.080" | SAE Grade 8 | Material Certificate | 10 | 98026A112 | 00000 | ||
| 3/8" | 0.438" | 1.000" | 0.064" to 0.080" | SAE Grade 8 | Material Certificate | 5 | 98026A113 | 0000 | ||
| 7/16" | 0.500" | 1.250" | 0.064" to 0.080" | SAE Grade 8 | Material Certificate | 5 | 98026A114 | 00000 | ||
| 1/2" | 0.562" | 1.375" | 0.097" to 0.121" | SAE Grade 8 | Material Certificate | 5 | 98026A115 | 00000 | ||
| 9/16" | 0.625" | 1.500" | 0.097" to 0.121" | SAE Grade 8 | Material Certificate | 5 | 98026A116 | 00000 | ||
| 5/8" | 0.688" | 1.750" | 0.122" to 0.146" | SAE Grade 8 | — | 1 | 98026A117 | 0000 | ||
| 3/4" | 0.812" | 2.000" | 0.122" to 0.146" | SAE Grade 8 | Material Certificate | 1 | 98026A118 | 0000 | ||
| 7/8" | 0.938" | 2.250" | 0.136" to 0.160" | SAE Grade 8 | — | 1 | 98026A119 | 0000 | ||
| 1" | 1.062" | 2.500" | 0.136" to 0.160" | SAE Grade 8 | Material Certificate | 1 | 98026A121 | 0000 | ||
| 1 1/8" | 1.250" | 2.750" | 0.136" to 0.160" | SAE Grade 8 | — | 1 | 98026A122 | 00000 | ||
| 1 1/4" | 1.375" | 3.000" | 0.136" to 0.160" | SAE Grade 8 | — | 1 | 98026A123 | 00000 | ||
| 1 3/8" | 1.500" | 3.250" | 0.136" to 0.160" | SAE Grade 8 | Material Certificate | 1 | 98026A124 | 00000 | ||
| 1 1/2" | 1.625" | 3.500" | 0.136" to 0.160" | SAE Grade 8 | — | 1 | 98026A125 | 00000 | ||
SAE Washers
Steel
 |
For Screw Size | ID | OD | Thk. | For Fastener Strength Grade/Class | Specs. Met | Certificate Type | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
Zinc-Plated Steel | |||||||||||
| 1/4" | 0.281" | 0.625" | 0.051" to 0.080" | SAE Grade 8 | — | Material Certificate | 25 | 90126A223 | 00000 | ||
| 5/16" | 0.344" | 0.688" | 0.051" to 0.080" | SAE Grade 8 | — | — | 25 | 90126A224 | 0000 | ||
| 3/8" | 0.406" | 0.812" | 0.051" to 0.080" | SAE Grade 8 | — | — | 25 | 90126A225 | 0000 | ||
| 7/16" | 0.469" | 0.922" | 0.051" to 0.080" | SAE Grade 8 | — | — | 25 | 90126A226 | 0000 | ||
| 1/2" | 0.531" | 1.062" | 0.074" to 0.121" | SAE Grade 8 | — | — | 10 | 90126A227 | 0000 | ||
| 5/8" | 0.656" | 1.312" | 0.074" to 0.121" | SAE Grade 8 | — | — | 5 | 90126A228 | 0000 | ||
| 3/4" | 0.812" | 1.469" | 0.108" to 0.160" | SAE Grade 8 | — | Material Certificate | 5 | 90126A229 | 00000 | ||
| 7/8" | 0.938" | 1.750" | 0.108" to 0.160" | SAE Grade 8 | — | — | 1 | 90126A231 | 0000 | ||
| 1" | 1.062" | 2.000" | 0.108" to 0.160" | SAE Grade 8 | — | — | 1 | 90126A232 | 0000 | ||
| 1 1/4" | 1.375" | 2.500" | 0.136" to 0.192" | SAE Grade 8 | — | — | 1 | 90126A233 | 0000 | ||
Zinc-Yellow-Chromate-Plated Steel | |||||||||||
| No. 2 | 0.094" | 0.250" | 0.016" to 0.025" | SAE Grade 8 | — | — | 100 | 90126A201 | 0000 | ||
| No. 4 | 0.125" | 0.312" | 0.028" to 0.036" | SAE Grade 8 | ASME B18.21.1 | — | 100 | 98023A111 | 0000 | ||
| No. 6 | 0.156" | 0.375" | 0.036" to 0.045" | SAE Grade 8 | ASME B18.21.1 | — | 100 | 98023A112 | 0000 | ||
| No. 8 | 0.188" | 0.438" | 0.036" to 0.065" | SAE Grade 8 | ASME B18.21.1 | — | 100 | 98023A113 | 0000 | ||
| No. 10 | 0.220" | 0.500" | 0.036" to 0.065" | SAE Grade 8 | ASME B18.21.1 | Material Certificate | 100 | 98023A114 | 0000 | ||
| No. 12 | 0.250" | 0.562" | 0.051" to 0.080" | SAE Grade 8 | — | — | 50 | 90126A202 | 00000 | ||
| 1/4" | 0.281" | 0.625" | 0.051" to 0.080" | SAE Grade 8 | ASME B18.21.1 | — | 100 | 98023A029 | 00000 | ||
| 5/16" | 0.344" | 0.688" | 0.051" to 0.080" | SAE Grade 8 | ASME B18.21.1 | — | 50 | 98023A030 | 0000 | ||
| 3/8" | 0.406" | 0.812" | 0.051" to 0.080" | SAE Grade 8 | ASME B18.21.1 | — | 50 | 98023A031 | 0000 | ||
| 7/16" | 0.469" | 0.922" | 0.051" to 0.080" | SAE Grade 8 | ASME B18.21.1 | — | 25 | 98023A032 | 0000 | ||
| 1/2" | 0.531" | 1.062" | 0.074" to 0.121" | SAE Grade 8 | ASME B18.21.1 | — | 25 | 98023A033 | 0000 | ||
| 9/16" | 0.594" | 1.156" | 0.074" to 0.121" | SAE Grade 8 | ASME B18.21.1 | — | 25 | 98023A034 | 0000 | ||
| 5/8" | 0.656" | 1.312" | 0.122" to 0.146" | SAE Grade 8 | — | — | 25 | 98189A661 | 00000 | ||
| 3/4" | 0.812" | 1.469" | 0.108" to 0.160" | SAE Grade 8 | ASME B18.21.1 | — | 20 | 98023A036 | 00000 | ||
| 7/8" | 0.938" | 1.750" | 0.108" to 0.160" | SAE Grade 8 | ASME B18.21.1 | — | 10 | 98023A037 | 0000 | ||
| 1" | 1.062" | 2.000" | 0.108" to 0.160" | SAE Grade 8 | ASME B18.21.1 | — | 10 | 98023A038 | 00000 | ||
| 1 1/8" | 1.250" | 2.250" | 0.108" to 0.160" | SAE Grade 8 | ASME B18.21.1 | — | 10 | 98023A039 | 00000 | ||
| 1 1/4" | 1.375" | 2.500" | 0.136" to 0.192" | SAE Grade 8 | ASME B18.21.1 | — | 5 | 98023A041 | 0000 | ||
| 1 3/8" | 1.500" | 2.750" | 0.136" to 0.192" | SAE Grade 8 | ASME B18.21.1 | — | 5 | 98023A042 | 00000 | ||
| 1 1/2" | 1.625" | 3.000" | 0.136" to 0.192" | SAE Grade 8 | ASME B18.21.1 | — | 5 | 98023A043 | 00000 | ||
| 1 5/8" | 1.750" | 3.750" | 0.153" to 0.213" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 98023A051 | 0000 | ||
| 1 3/4" | 1.875" | 3.375" | 0.178" to 0.196" | SAE Grade 8 | — | — | 5 | 98189A667 | 00000 | ||
| 1 7/8" | 2.000" | 4.250" | 0.153" to 0.213" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 98023A053 | 0000 | ||
| 2" | 2.125" | 3.750" | 0.178" to 0.196" | SAE Grade 8 | — | — | 1 | 98189A685 | 0000 | ||
Highly Corrosion-Resistant Zinc-Flake-Coated Steel | |||||||||||
| No. 6 | 0.158" | 0.380" | 0.036" to 0.065" | SAE Grade 8 | ASME B18.21.1 | — | 10 | 98180A180 | 0000 | ||
| No. 8 | 0.190" | 0.443" | 0.036" to 0.065" | SAE Grade 8 | ASME B18.21.1 | Material Certificate | 10 | 98180A190 | 0000 | ||
| No. 10 | 0.221" | 0.505" | 0.036" to 0.065" | SAE Grade 8 | ASME B18.21.1 | — | 10 | 98180A210 | 0000 | ||
| 1/4" | 0.281" | 0.625" | 0.055" to 0.065" | SAE Grade 8 | ASME B18.22.1 | — | 100 | 98180A110 | 00000 | ||
| 5/16" | 0.344" | 0.688" | 0.055" to 0.065" | SAE Grade 8 | ASME B18.22.1 | — | 50 | 98180A120 | 0000 | ||
| 3/8" | 0.406" | 0.812" | 0.055" to 0.065" | SAE Grade 8 | ASME B18.22.1 | — | 50 | 98180A130 | 0000 | ||
| 7/16" | 0.469" | 0.922" | 0.055" to 0.065" | SAE Grade 8 | ASME B18.22.1 | — | 25 | 98180A140 | 0000 | ||
| 1/2" | 0.531" | 1.062" | 0.097" to 0.177" | SAE Grade 8 | ASME B18.22.1 | — | 25 | 98180A150 | 00000 | ||
| 9/16" | 0.599" | 1.168" | 0.074" to 0.121" | SAE Grade 8 | ASME B18.21.1 | — | 5 | 98180A220 | 0000 | ||
| 5/8" | 0.688" | 1.312" | 0.122" to 0.177" | SAE Grade 8 | ASME B18.22.1 | — | 25 | 98180A160 | 00000 | ||
| 3/4" | 0.812" | 1.469" | 0.122" to 0.177" | SAE Grade 8 | ASME B18.22.1 | — | 20 | 98180A170 | 00000 | ||
| 7/8" | 0.950" | 1.762" | 0.108" to 0.160" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 98180A230 | 0000 | ||
| 1" | 1.074" | 2.012" | 0.108" to 0.160" | SAE Grade 8 | ASME B18.21.1 | Material Certificate | 1 | 98180A240 | 0000 | ||
| 1 1/8" | 1.262" | 2.243" | 0.108" to 0.160" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 98180A250 | 0000 | ||
| 1 1/4" | 1.387" | 2.512" | 0.136" to 0.192" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 98180A260 | 0000 | ||
| 1 1/2" | 1.637" | 3.012" | 0.136" to 0.192" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 98180A270 | 00000 | ||
Black Super-Corrosion-Resistant-Coated Steel | |||||||||||
| 1/4" | 0.281" | 0.625" | 0.055" to 0.065" | SAE Grade 8 | ASME B18.21.1 | — | 5 | 91434A116 | 0000 | ||
| 5/16" | 0.344" | 0.688" | 0.055" to 0.065" | SAE Grade 8 | ASME B18.21.1 | — | 5 | 91434A117 | 0000 | ||
| 3/8" | 0.406" | 0.813" | 0.055" to 0.065" | SAE Grade 8 | ASME B18.21.1 | — | 5 | 91434A118 | 0000 | ||
| 7/16" | 0.469" | 0.922" | 0.055" to 0.065" | SAE Grade 8 | ASME B18.21.1 | — | 5 | 91434A119 | 0000 | ||
| 1/2" | 0.531" | 1.063" | 0.100" to 0.116" | SAE Grade 8 | ASME B18.21.1 | — | 5 | 91434A120 | 00000 | ||
| 9/16" | 0.594" | 1.188" | 0.100" to 0.116" | SAE Grade 8 | ASME B18.21.1 | — | 5 | 91434A121 | 00000 | ||
| 5/8" | 0.656" | 1.313" | 0.122" to 0.138" | SAE Grade 8 | ASME B18.21.1 | — | 5 | 91434A122 | 00000 | ||
| 3/4" | 0.813" | 1.469" | 0.122" to 0.138" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 91434A123 | 0000 | ||
| 7/8" | 0.938" | 1.750" | 0.136" to 0.152" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 91434A124 | 0000 | ||
| 1" | 1.063" | 2.000" | 0.136" to 0.160" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 91434A125 | 0000 | ||
| 1 1/4" | 1.375" | 2.500" | 0.136" to 0.160" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 91434A126 | 0000 | ||
| 1 1/2" | 1.625" | 3.000" | 0.136" to 0.160" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 91434A127 | 00000 | ||
| 1 3/4" | 1.875" | 3.375" | 0.178" to 0.196" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 91434A128 | 00000 | ||
| 2" | 2.125" | 3.750" | 0.178" to 0.196" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 91434A129 | 00000 | ||
Oversized Washers
Steel
 |
 |
For Screw Size | ID | OD | Thk. | For Fastener Strength Grade/Class | Certificate Type | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|---|---|
Zinc-Yellow-Chromate-Plated Steel | ||||||||||
| 1/4" | 0.281" | 0.625" | 0.090" to 0.108" | SAE Grade 8 | Material Certificate | 100 | 98025A029 | 000000 | ||
| 1/4" | 0.285" | 1.250" | 0.047" to 0.080" | SAE Grade 8 | Material Certificate | 10 | 90495A111 | 0000 | ||
| 1/4" | 0.285" | 1.500" | 0.047" to 0.080" | SAE Grade 8 | — | 10 | 90495A112 | 0000 | ||
| 1/4" | 0.285" | 2.000" | 0.047" to 0.080" | SAE Grade 8 | — | 5 | 90495A113 | 0000 | ||
| 5/16" | 0.344" | 0.688" | 0.090" to 0.108" | SAE Grade 8 | Material Certificate | 50 | 98025A030 | 00000 | ||
| 5/16" | 0.348" | 1.000" | 0.047" to 0.080" | SAE Grade 8 | — | 25 | 90495A131 | 0000 | ||
| 5/16" | 0.348" | 1.250" | 0.047" to 0.080" | SAE Grade 8 | — | 10 | 90495A132 | 0000 | ||
| 5/16" | 0.348" | 1.500" | 0.047" to 0.080" | SAE Grade 8 | — | 10 | 90495A133 | 0000 | ||
| 5/16" | 0.348" | 2.000" | 0.047" to 0.080" | SAE Grade 8 | — | 5 | 90495A134 | 0000 | ||
| 3/8" | 0.406" | 0.812" | 0.110" to 0.126" | SAE Grade 8 | Material Certificate | 50 | 98025A031 | 00000 | ||
| 3/8" | 0.410" | 1.500" | 0.047" to 0.080" | SAE Grade 8 | — | 10 | 90495A151 | 0000 | ||
| 3/8" | 0.410" | 2.000" | 0.047" to 0.080" | SAE Grade 8 | — | 5 | 90495A152 | 0000 | ||
| 7/16" | 0.469" | 0.922" | 0.110" to 0.126" | SAE Grade 8 | Material Certificate | 25 | 98025A132 | 0000 | ||
| 1/2" | 0.531" | 1.062" | 0.190" to 0.208" | SAE Grade 8 | Material Certificate | 25 | 98025A133 | 00000 | ||
| 1/2" | 0.531" | 1.500" | 0.056" to 0.071" | SAE Grade 8 | — | 10 | 90495A191 | 0000 | ||
| 1/2" | 0.531" | 3.000" | 0.085" to 0.101" | SAE Grade 8 | — | 1 | 90495A193 | 0000 | ||
| 1/2" | 0.535" | 2.000" | 0.047" to 0.080" | SAE Grade 8 | — | 5 | 90495A192 | 0000 | ||
| 9/16" | 0.594" | 1.172" | 0.168" to 0.191" | SAE Grade 8 | Material Certificate | 10 | 98025A034 | 00000 | ||
| 5/8" | 0.656" | 1.312" | 0.206" to 0.229" | SAE Grade 8 | Material Certificate | 10 | 98025A035 | 00000 | ||
| 5/8" | 0.688" | 1.500" | 0.110" to 0.140" | SAE Grade 8 | Material Certificate | 5 | 90495A201 | 00000 | ||
| 5/8" | 0.688" | 2.000" | 0.110" to 0.140" | SAE Grade 8 | — | 1 | 90495A202 | 0000 | ||
| 3/4" | 0.812" | 1.469" | 0.206" to 0.229" | SAE Grade 8 | Material Certificate | 10 | 98025A036 | 00000 | ||
| 7/8" | 0.938" | 1.750" | 0.235" to 0.264" | SAE Grade 8 | Material Certificate | 5 | 98025A037 | 0000 | ||
| 1" | 1.062" | 2.000" | 0.235" to 0.264" | SAE Grade 8 | — | 5 | 98025A038 | 0000 | ||
| 1 1/8" | 1.188" | 2.250" | 0.235" to 0.264" | SAE Grade 8 | Material Certificate | 5 | 98025A139 | 00000 | ||
| 1 1/4" | 1.375" | 2.500" | 0.235" to 0.264" | SAE Grade 8 | Material Certificate | 5 | 98025A040 | 00000 | ||
| 1 3/8" | 1.438" | 2.750" | 0.235" to 0.264" | SAE Grade 8 | — | 1 | 98025A043 | 0000 | ||
| 1 1/2" | 1.562" | 3.000" | 0.235" to 0.264" | SAE Grade 8 | Material Certificate | 1 | 98025A045 | 0000 | ||
Black Super-Corrosion-Resistant-Coated Steel | ||||||||||
| 1/4" | 0.313" | 0.750" | 0.090" to 0.110" | SAE Grade 8 | — | 5 | 93413A311 | 0000 | ||
| 5/16" | 0.375" | 0.875" | 0.090" to 0.110" | SAE Grade 8 | — | 5 | 93413A312 | 0000 | ||
| 3/8" | 0.438" | 1.000" | 0.110" to 0.126" | SAE Grade 8 | — | 5 | 93413A313 | 00000 | ||
| 7/16" | 0.500" | 1.250" | 0.110" to 0.126" | SAE Grade 8 | — | 5 | 93413A314 | 00000 | ||
| 1/2" | 0.563" | 1.375" | 0.156" to 0.188" | SAE Grade 8 | Material Certificate | 1 | 93413A315 | 0000 | ||
| 9/16" | 0.625" | 1.500" | 0.156" to 0.188" | SAE Grade 8 | — | 1 | 93413A316 | 0000 | ||
| 5/8" | 0.688" | 1.750" | 0.170" to 0.195" | SAE Grade 8 | — | 1 | 93413A317 | 0000 | ||
| 3/4" | 0.813" | 2.000" | 0.170" to 0.195" | SAE Grade 8 | — | 1 | 93413A318 | 0000 | ||
| 7/8" | 0.938" | 2.250" | 0.235" to 0.265" | SAE Grade 8 | — | 1 | 93413A319 | 00000 | ||
| 1" | 1.063" | 2.500" | 0.235" to 0.265" | SAE Grade 8 | — | 1 | 93413A321 | 00000 | ||
ASME Washers
Steel
 |
Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
Zinc-Yellow-Chromate-Plated Steel—With the same corrosion resistance as zinc-plated steel, these withstand occasional exposure to moisture.
Material Certificate—Washers include a report with a traceable lot number.
For Fastener Strength Grade/Class—If you require screws or nuts with a specific fastener strength rating, make sure your washer matches the grade or class.
For Screw Size | ASME Designation | ID | OD | Thk. | For Fastener Strength Grade/Class | Specs. Met | Certificate Type | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Zinc-Plated Steel | ||||||||||||
| 1/4" | Narrow | 0.281" | 0.500" | 0.056" to 0.071" | SAE Grade 8 | ASME B18.21.1 | — | 50 | 94744A501 | 000000 | ||
| 1/4" | Regular | 0.281" | 0.734" | 0.056" to 0.071" | SAE Grade 8 | ASME B18.21.1 | — | 25 | 94744A502 | 00000 | ||
| 5/16" | Narrow | 0.344" | 0.625" | 0.056" to 0.071" | SAE Grade 8 | ASME B18.21.1 | — | 25 | 94744A503 | 0000 | ||
| 3/8" | Narrow | 0.406" | 0.734" | 0.056" to 0.071" | SAE Grade 8 | ASME B18.21.1 | — | 25 | 94744A504 | 00000 | ||
| 3/8" | Regular | 0.406" | 1.000" | 0.056" to 0.071" | SAE Grade 8 | ASME B18.21.1 | — | 25 | 94744A505 | 00000 | ||
| 1/2" | Narrow | 0.531" | 1.000" | 0.056" to 0.071" | SAE Grade 8 | ASME B18.21.1 | — | 25 | 94744A506 | 00000 | ||
| 1/2" | Regular | 0.531" | 1.250" | 0.090" to 0.112" | SAE Grade 8 | ASME B18.21.1 | — | 5 | 94744A507 | 00000 | ||
| 5/8" | Narrow | 0.656" | 1.250" | 0.090" to 0.112" | SAE Grade 8 | ASME B18.21.1 | — | 5 | 94744A508 | 00000 | ||
| 5/8" | Regular | 0.656" | 1.750" | 0.090" to 0.112" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 94744A509 | 0000 | ||
| 3/4" | Narrow | 0.812" | 1.375" | 0.090" to 0.112" | SAE Grade 8 | ASME B18.21.1 | — | 5 | 94744A511 | 00000 | ||
| 3/4" | Regular | 0.812" | 2.000" | 0.090" to 0.112" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 94744A512 | 0000 | ||
| 1" | Narrow | 1.062" | 1.750" | 0.090" to 0.112" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 94744A513 | 0000 | ||
Zinc-Yellow-Chromate-Plated Steel | ||||||||||||
| No. 8 | Narrow | 0.188" | 0.375" | 0.036" to 0.045" | SAE Grade 8 | ASME B18.21.1 | — | 100 | 90474A125 | 00000 | ||
| No. 10 | Narrow | 0.203" | 0.406" | 0.036" to 0.045" | SAE Grade 8 | ASME B18.21.1 | — | 100 | 90474A126 | 00000 | ||
| No. 10 | Regular | 0.203" | 0.562" | 0.036" to 0.045" | SAE Grade 8 | ASME B18.21.1 | — | 100 | 90474A127 | 00000 | ||
| 1/4" | Narrow | 0.281" | 0.500" | 0.056" to 0.071" | SAE Grade 8 | ASME B18.21.1 | — | 50 | 90474A111 | 00000 | ||
| 1/4" | Wide | 0.281" | 1.000" | 0.056" to 0.071" | SAE Grade 8 | ASME B18.21.1 | Material Certificate | 25 | 90474A128 | 00000 | ||
| 5/16" | Narrow | 0.344" | 0.625" | 0.056" to 0.071" | SAE Grade 8 | ASME B18.21.1 | — | 25 | 90474A112 | 0000 | ||
| 5/16" | Wide | 0.344" | 1.125" | 0.056" to 0.071" | SAE Grade 8 | ASME B18.21.1 | — | 10 | 90474A129 | 00000 | ||
| 3/8" | Narrow | 0.406" | 0.734" | 0.056" to 0.071" | SAE Grade 8 | ASME B18.21.1 | — | 25 | 90474A113 | 00000 | ||
| 3/8" | Wide | 0.406" | 1.250" | 0.090" to 0.112" | SAE Grade 8 | ASME B18.21.1 | — | 5 | 90474A114 | 0000 | ||
| 7/16" | Narrow | 0.469" | 0.875" | 0.056" to 0.071" | SAE Grade 8 | ASME B18.21.1 | — | 25 | 90474A115 | 00000 | ||
| 7/16" | Regular | 0.469" | 1.125" | 0.056" to 0.071" | SAE Grade 8 | ASME B18.21.1 | — | 10 | 90474A131 | 00000 | ||
| 7/16" | Wide | 0.469" | 1.469" | 0.090" to 0.112" | SAE Grade 8 | ASME B18.21.1 | — | 5 | 90474A132 | 00000 | ||
| 1/2" | Narrow | 0.531" | 1.000" | 0.056" to 0.071" | SAE Grade 8 | ASME B18.21.1 | — | 25 | 90474A116 | 00000 | ||
| 1/2" | Regular | 0.531" | 1.250" | 0.090" to 0.112" | SAE Grade 8 | ASME B18.21.1 | — | 5 | 90474A117 | 0000 | ||
| 1/2" | Wide | 0.531" | 1.750" | 0.090" to 0.112" | SAE Grade 8 | ASME B18.21.1 | — | 5 | 90474A118 | 00000 | ||
| 5/8" | Wide | 0.656" | 2.250" | 0.146" to 0.174" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 90474A119 | 00000 | ||
| 3/4" | Narrow | 0.812" | 1.375" | 0.090" to 0.112" | SAE Grade 8 | ASME B18.21.1 | — | 5 | 90474A121 | 00000 | ||
| 3/4" | Wide | 0.812" | 2.500" | 0.146" to 0.174" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 90474A122 | 00000 | ||
| 7/8" | Narrow | 0.938" | 1.469" | 0.090" to 0.112" | SAE Grade 8 | ASME B18.21.1 | — | 5 | 90474A123 | 00000 | ||
| 1" | Narrow | 1.062" | 1.750" | 0.090" to 0.112" | SAE Grade 8 | ASME B18.21.1 | Material Certificate | 5 | 90474A124 | 00000 | ||
| 1" | Wide | 1.062" | 3.000" | 0.146" to 0.174" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 90474A133 | 00000 | ||
| 1 1/8" | Narrow | 1.188" | 2.000" | 0.090" to 0.112" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 90474A134 | 0000 | ||
| 1 1/4" | Narrow | 1.312" | 2.250" | 0.146" to 0.174" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 90474A135 | 00000 | ||
| 1 1/2" | Narrow | 1.562" | 2.750" | 0.146" to 0.174" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 90474A136 | 00000 | ||
| 1 3/4" | Narrow | 1.875" | 3.250" | 0.146" to 0.174" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 90474A137 | 00000 | ||
USS Washers
Steel
 |
Zinc-Yellow-Chromate-Plated Steel—With the same corrosion resistance as zinc-plated steel, these withstand occasional exposure to moisture.
Black Super-Corrosion-Resistant-Coated Steel—Combines a finished appearance with the rust resistance of 316 stainless steel. The coating has been tested to extreme standards, including 1,000 hours of salt spray resistance, to hold up in wet and outdoor environments. Also known as black luster.
Material Certificate—Washers include a report with a traceable lot number.
For Fastener Strength Grade/Class—If you require screws or nuts with a specific fastener strength rating, make sure your washer matches the grade or class.
For Screw Size | ID | OD | Thk. | For Fastener Strength Grade/Class | Specs. Met | Certificate Type | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
Zinc-Yellow-Chromate-Plated Steel | |||||||||||
| No. 10 | 0.250" | 0.562" | 0.036" to 0.065" | SAE Grade 8 | — | — | 100 | 90476A102 | 000000 | ||
| 1/4" | 0.312" | 0.734" | 0.051" to 0.080" | SAE Grade 8 | ASME B18.21.1 | — | 100 | 98026A029 | 00000 | ||
| 5/16" | 0.375" | 0.875" | 0.064" to 0.104" | SAE Grade 8 | ASME B18.21.1 | — | 50 | 98026A030 | 00000 | ||
| 3/8" | 0.438" | 1.000" | 0.064" to 0.104" | SAE Grade 8 | ASME B18.21.1 | — | 50 | 98026A031 | 00000 | ||
| 7/16" | 0.500" | 1.250" | 0.064" to 0.104" | SAE Grade 8 | ASME B18.21.1 | — | 25 | 98026A032 | 00000 | ||
| 1/2" | 0.562" | 1.375" | 0.086" to 0.132" | SAE Grade 8 | ASME B18.21.1 | — | 25 | 98026A033 | 00000 | ||
| 9/16" | 0.625" | 1.469" | 0.086" to 0.132" | SAE Grade 8 | ASME B18.21.1 | — | 25 | 98026A034 | 00000 | ||
| 5/8" | 0.688" | 1.750" | 0.108" to 0.160" | SAE Grade 8 | ASME B18.21.1 | — | 25 | 98026A035 | 00000 | ||
| 3/4" | 0.812" | 2.000" | 0.122" to 0.177" | SAE Grade 8 | ASME B18.21.1 | — | 10 | 98026A036 | 00000 | ||
| 7/8" | 0.938" | 2.250" | 0.136" to 0.192" | SAE Grade 8 | ASME B18.21.1 | — | 10 | 98026A037 | 00000 | ||
| 1" | 1.062" | 2.500" | 0.136" to 0.192" | SAE Grade 8 | ASME B18.21.1 | — | 5 | 98026A038 | 00000 | ||
| 1 1/8" | 1.250" | 2.750" | 0.136" to 0.192" | SAE Grade 8 | ASME B18.21.1 | — | 5 | 98026A039 | 00000 | ||
| 1 1/4" | 1.375" | 3.000" | 0.136" to 0.192" | SAE Grade 8 | ASME B18.21.1 | — | 5 | 98026A040 | 00000 | ||
| 1 3/8" | 1.500" | 3.250" | 0.136" to 0.160" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 98026A041 | 0000 | ||
| 1 1/2" | 1.625" | 3.500" | 0.136" to 0.160" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 98026A042 | 0000 | ||
| 2" | 2.125" | 4.500" | 0.153" to 0.213" | SAE Grade 8 | ASME B18.21.1 | Material Certificate | 1 | 90476A101 | 00000 | ||
| 2 1/4" | 2.375" | 4.750" | 0.193" to 0.248" | SAE Grade 8 | — | — | 1 | 98189A187 | 00000 | ||
| 2 1/2" | 2.625" | 5.000" | 0.210" to 0.280" | SAE Grade 8 | — | — | 1 | 98189A198 | 00000 | ||
| 2 3/4" | 2.875" | 5.250" | 0.228" to 0.320" | SAE Grade 8 | — | — | 1 | 98189A201 | 00000 | ||
| 3" | 3.125" | 5.500" | 0.249" to 0.327" | SAE Grade 8 | — | — | 1 | 98189A246 | 00000 | ||
Black Super-Corrosion-Resistant-Coated Steel | |||||||||||
| 1/4" | 0.312" | 0.750" | 0.051" to 0.080" | SAE Grade 8 | — | — | 10 | 98189A452 | 00000 | ||
| 5/16" | 0.375" | 0.875" | 0.064" to 0.104" | SAE Grade 8 | ASME B18.21.1 | — | 10 | 98189A472 | 00000 | ||
| 3/8" | 0.438" | 1.000" | 0.064" to 0.104" | SAE Grade 8 | ASME B18.21.1 | — | 5 | 98189A474 | 0000 | ||
| 7/16" | 0.500" | 1.250" | 0.064" to 0.104" | SAE Grade 8 | ASME B18.21.1 | — | 5 | 98189A478 | 00000 | ||
| 1/2" | 0.562" | 1.375" | 0.086" to 0.132" | SAE Grade 8 | ASME B18.21.1 | — | 5 | 98189A491 | 00000 | ||
| 9/16" | 0.625" | 1.500" | 0.086" to 0.132" | SAE Grade 8 | — | — | 5 | 98189A525 | 00000 | ||
| 5/8" | 0.688" | 1.750" | 0.108" to 0.160" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 98189A558 | 0000 | ||
| 3/4" | 0.812" | 2.000" | 0.122" to 0.177" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 98189A560 | 0000 | ||
| 7/8" | 0.938" | 2.250" | 0.136" to 0.192" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 98189A566 | 0000 | ||
| 1" | 1.062" | 2.500" | 0.136" to 0.192" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 98189A603 | 0000 | ||
| 1 1/8" | 1.250" | 2.750" | 0.136" to 0.192" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 98189A618 | 00000 | ||
| 1 1/4" | 1.375" | 3.000" | 0.136" to 0.192" | SAE Grade 8 | ASME B18.21.1 | — | 1 | 98189A626 | 00000 | ||
| 1 3/8" | 1.500" | 3.250" | 0.153" to 0.213" | SAE Grade 8 | — | — | 1 | 98189A630 | 00000 | ||
| 1 1/2" | 1.625" | 3.500" | 0.153" to 0.213" | SAE Grade 8 | — | — | 1 | 98189A654 | 00000 | ||
Split Lock Washers
 |
Stop nuts and screws from loosening due to mild vibration. As you tighten, the uneven ends bite into the nut or screw so it won't back out. While they're not as vibration resistant as other lock washers, they are a great fit for electrical panels, light fixtures, and other light duty assemblies. Split lock washers are not reusable, and they only work with fasteners that have right-hand threads.
Zinc-Yellow-Chromate-Plated Steel—With the same corrosion resistance as zinc-plated steel, these withstand occasional exposure to moisture.
For Screw Size | ID | OD | Thk. | For Fastener Strength Grade/Class | Specs. Met | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|---|---|
Zinc-Yellow-Chromate-Plated Steel | ||||||||||
| 1/4" | 0.260" | 0.487" | 0.062" | SAE Grade 8 | ASME B18.21.1 | 100 | 91104A029 | 00000 | ||
| 5/16" | 0.322" | 0.583" | 0.078" | SAE Grade 8 | ASME B18.21.1 | 100 | 91104A030 | 0000 | ||
| 3/8" | 0.385" | 0.680" | 0.094" | SAE Grade 8 | ASME B18.21.1 | 100 | 91104A031 | 0000 | ||
| 7/16" | 0.450" | 0.776" | 0.109" | SAE Grade 8 | ASME B18.21.1 | 100 | 91104A032 | 00000 | ||
| 1/2" | 0.512" | 0.869" | 0.125" | SAE Grade 8 | ASME B18.21.1 | 100 | 91104A033 | 00000 | ||
| 9/16" | 0.574" | 0.965" | 0.141" | SAE Grade 8 | ASME B18.21.1 | 50 | 91104A034 | 00000 | ||
| 5/8" | 0.641" | 1.073" | 0.156" | SAE Grade 8 | ASME B18.21.1 | 50 | 91104A035 | 00000 | ||
| 3/4" | 0.766" | 1.265" | 0.188" | SAE Grade 8 | ASME B18.21.1 | 25 | 91104A047 | 00000 | ||
| 7/8" | 0.894" | 1.459" | 0.219" | SAE Grade 8 | ASME B18.21.1 | 10 | 91104A048 | 0000 | ||
| 1" | 1.024" | 1.656" | 0.250" | SAE Grade 8 | ASME B18.21.1 | 10 | 91104A049 | 00000 | ||
| 1 1/8" | 1.153" | 1.903" | 0.345" | SAE Grade 8 | ASME B18.21.1 | 5 | 91104A050 | 00000 | ||
| 1 1/4" | 1.280" | 2.104" | 0.384" | SAE Grade 8 | ASME B18.21.1 | 1 | 91104A055 | 0000 | ||
| 1 3/8" | 1.408" | 2.301" | 0.422" | SAE Grade 8 | ASME B18.21.1 | 1 | 91104A060 | 0000 | ||
| 1 1/2" | 1.534" | 2.491" | 0.458" | SAE Grade 8 | ASME B18.21.1 | 1 | 91104A065 | 00000 | ||
| 2" | 2.039" | 3.144" | 0.496" | SAE Grade 8 | ASME B18.21.1 | 1 | 91104A070 | 00000 | ||
Tooth Lock Washers
Internal Tooth
 |
Internal teeth dig into the nut or screw to prevent it from backing out. Unlike external-tooth lock washers, these have a smooth outside edge, so they are less likely to mar your material or snag on objects. However, they don’t grip quite as well. Pair them with fasteners that have small diameters, such as fillister and cheese head screws.
Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
For Screw Size | ID | OD | Thk. | For Fastener Strength Grade/Class | Specs. Met | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|---|---|
Zinc-Plated Steel | ||||||||||
| 1/4" | 0.256" | 0.536" | 0.034" to 0.044" | SAE Grade 8 | ASME B18.21.1 | 100 | 91150A110 | 000000 | ||
| 5/16" | 0.320" | 0.607" | 0.040" to 0.050" | SAE Grade 8 | ASME B18.21.1 | 50 | 91150A113 | 00000 | ||
| 3/8" | 0.384" | 0.747" | 0.040" to 0.050" | SAE Grade 8 | ASME B18.21.1 | 25 | 91150A114 | 00000 | ||
| 1/2" | 0.512" | 0.923" | 0.054" to 0.070" | SAE Grade 8 | ASME B18.21.1 | 10 | 91150A120 | 00000 | ||
| 5/8" | 0.640" | 1.134" | 0.054" to 0.070" | SAE Grade 8 | ASME B18.21.1 | 5 | 91150A126 | 00000 | ||
| 3/4" | 0.769" | 1.260" | 0.073" to 0.083" | SAE Grade 8 | ASME B18.21.1 | 5 | 91150A130 | 00000 | ||
Steel Hex Head Screw, Nut, and Washer Assortments
 |
Keep a range of hex head screw, nut, and washer sizes on hand for a variety of jobs. The screws in these assortments have heads with six flat sides to keep wrenches and sockets slipping and rounding off the drive.
Length is measured from under the head.
High-Strength Fastener—Commonly used to fasten components in valves, pumps, motors, and other high-stress applications. These screws have a tensile strength of 125,000 to 160,000 psi.
Zinc-Yellow-Chromate-Plated Steel—With slightly better corrosion resistance than zinc-plated steel screws, these stand up to more frequent exposure to moisture.
No. of Pieces | Hex Head Screws Included | Hex Nuts Included | Split Lock Washers Included | Flat Washers Included | Fastener Strength Grade/Class | Container Type | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|
High-Strength Zinc-Yellow-Chromate-Plated Steel | ||||||||||
| 240 | 5/8"-11 Thread: 1", 1 1/2", 1 3/4", 2", 2 1/4", 2 1/2", 3", 3 1/2", and 4" Lg. (85 Pieces) | 5/8"-11 Thread (40 Pieces) | For 5/8" Screw Size (50 Pieces) | For 5/8" Screw Size (65 Pieces) | SAE Grade 8 | Metal Box | 91350A124 | 0000000 | ||
| 265 | 1/2"-13 Thread: 1", 1 1/4", 1 1/2", 1 3/4", 2", 2 1/2", 3", 3 1/2", and 4" Lg. (90 Pieces) | 1/2"-13 Thread (50 Pieces) | For 1/2" Screw Size (60 Pieces) | For 1/2" Screw Size (65 pieces) | SAE Grade 8 | Metal Box | 91350A123 | 000000 | ||
| 555 | 3/8"-16 Thread: 3/4", 1", 1 1/4", 1 1/2", 1 3/4", 2", 2 1/2", 3", and 3 1/2" Lg. (175 Pieces) | 3/8"-16 Thread (120 Pieces) | For 3/8" Screw Size (80 Pieces) | For 3/8" Screw Size (180 pieces) | SAE Grade 8 | Metal Box | 91350A122 | 000000 | ||
| 615 | 1/4"-20 Thread: 1/2", 5/8", 3/4", 1", 1 1/4", 1 1/2", 2", 2 1/2", and 3" Lg. (200 Pieces) | 1/4"-20 Thread (140 Pieces) | For 1/4" Screw Size (85 Pieces) | For 1/4" Screw Size (190 pieces) | SAE Grade 8 | Metal Box | 91350A121 | 000000 | ||
| 910 | 1/4"-20 Thread: 1/2", 3/4", 1", 1 1/2", and 2" Lg. (115 Pieces) 5/16"-18 Thread: 3/4", 1", 1 1/4", 1 1/2", and 2" Lg. (100 Pieces) 3/8"-16 Thread: 3/4", 1", 1 1/4", 1 1/2", and 2" Lg. (70 Pieces) | 1/4"-20 Thread (50 Pieces) 5/16"-18 Thread (50 Pieces) 3/8"-16 Thread (25 Pieces) | For 1/4" Screw Size (100 Pieces) For 5/16" Screw Size (100 Pieces) For 3/8" Screw Size (50 Pieces) | For 1/4" Screw Size (100 Pieces) For 5/16" Screw Size (100 Pieces) For 3/8" Screw Size (50 Pieces) | SAE Grade 8 | Metal Box | 91350A112 | 000000 | ||
| 910 | 1/4"-28 Thread: 1/2", 3/4", 1", 1 1/2", and 2" Lg. (115 Pieces) 5/16"-24 Thread: 3/4", 1", 1 1/4", 1 1/2", and 2" Lg. (100 Pieces) 3/8"-24 Thread: 3/4", 1", 1 1/4", 1 1/2", and 2" Lg. (70 Pieces) | 1/4"-28 Thread (50 Pieces) 5/16"-24 Thread (50 Pieces) 3/8"-24 Thread (25 Pieces) | For 1/4" Screw Size (100 Pieces) For 5/16" Screw Size (100 Pieces) For 3/8" Screw Size (50 Pieces) | For 1/4" Screw Size (100 Pieces) For 5/16" Screw Size (100 Pieces) For 3/8" Screw Size (50 Pieces) | SAE Grade 8 | Metal Box | 91350A317 | 000000 | ||
