McMaster 98029A033 Black-Oxide Steel Washer for 1/2" Screw Size, General Purpose, 0.531" ID
UPC: | Harmonization / Schedule B : 7318.22.0000
Country of Origin: United States | Shipping Weight: 0.6 lbs
UPC: | Harmonization / Schedule B : 7318.22.0000
Country of Origin: United States | Shipping Weight: 0.6 lbs
Your go-to metal washer for every screw size. Washers take the pressure off nuts and screws to protect mounting surfaces.
Black-Oxide Steel—Typically chosen for their appearance, these washers have a dark, matte coating that creates a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
Material Certificate—Washers include a report with a traceable lot number.
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Washer Designation
|
General Purpose |
|
Material
|
Black-Oxide Steel |
|
For Screw Size
|
1/2" |
|
ID
|
0.531" |
|
OD
|
1.125" |
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Thickness
|
0.105" to 0.130" |
|
Certificate Form
|
Digital |
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Certificate Type
|
Material Certificate with Traceable Lot Number |
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Hardness
|
Not Rated |
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System of Measurement
|
Inch |
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Washer Type
|
Flat |
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Country of Origin
|
United States |
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DFARS Compliance
|
Specialty Metals COTS-Exempt |
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Export Control Classification Number (ECCN)
|
EAR99 |
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REACH Compliance
|
REACH (EC 1907/2006) (06/25/2025, 250 SVHC) Compliant |
|
RoHS Compliance
|
RoHS 3 (2015/863/EU) Compliant with Exemptions |
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RoHS Exemptions
|
6(a) |
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Schedule B Number
|
731822.0000 |
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U.S.–Mexico–Canada Agreement (USMCA) Qualifying
|
Yes |