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    32 Products

    Performance

    Certificate Type

    Oversized Washers

    These washers have exaggerated diameters to cover large holes and to compensate for uneven mounting surfaces. They are also thicker than general purpose washers, so they bridge wide gaps when used as spacers.
    Steel
    Image of Product. Front orientation. Washers. Oversized Washers.
    Zinc-Yellow-Chromate-Plated Steel—With the same corrosion resistance as zinc-plated steel, these withstand occasional exposure to moisture.
    Steel—Best for dry environments since moisture will cause these washers to rust.
    Corrosion-Resistant Galvanized Steel—These washers combine the strength of steel with the rust resistance of stainless steel. They're an economical alternative to 18-8 stainless steel in wet and outdoor environments, but they won't hold up to salt water and chemicals.
    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"0.090" to 0.108"SAE Grade 8
    		Material Certificate
    		10098025A029000000
    5/16"
    		0.344"0.688"0.090" to 0.108"SAE Grade 8
    		Material Certificate
    		5098025A03000000
    3/8"
    		0.406"0.812"0.110" to 0.126"SAE Grade 8
    		Material Certificate
    		5098025A03100000
    7/16"
    		0.469"0.922"0.110" to 0.126"SAE Grade 8
    		Material Certificate
    		2598025A1320000
    1/2"
    		0.531"1.062"0.190" to 0.208"SAE Grade 8
    		—2598025A13300000
    9/16"
    		0.594"1.172"0.168" to 0.191"SAE Grade 8
    		Material Certificate
    		1098025A03400000
    5/8"
    		0.656"1.312"0.206" to 0.229"SAE Grade 8
    		Material Certificate
    		1098025A03500000
    3/4"
    		0.812"1.469"0.206" to 0.229"SAE Grade 8
    		Material Certificate
    		1098025A03600000
    7/8"
    		0.938"1.750"0.235" to 0.264"SAE Grade 8
    		Material Certificate
    		598025A0370000
    1"
    		1.062"2.000"0.235" to 0.264"SAE Grade 8
    		—598025A0380000
    1 1/8"
    		1.188"2.250"0.235" to 0.264"SAE Grade 8
    		Material Certificate
    		598025A13900000
    1 1/4"
    		1.375"2.500"0.235" to 0.264"SAE Grade 8
    		Material Certificate
    		598025A04000000
    1 3/8"
    		1.438"2.750"0.235" to 0.264"SAE Grade 8
    		—198025A0430000
    1 1/2"
    		1.562"3.000"0.235" to 0.264"SAE Grade 8
    		Material Certificate
    		198025A0450000
     
    Steel
    No. 10
    		0.203"0.500"0.089" to 0.099"—Material Certificate
    		2591201A01100000
    1/4"
    		0.281"0.625"0.120" to 0.130"—Material Certificate
    		2591201A02900000
    5/16"
    		0.344"0.750"0.120" to 0.130"——2591201A03000000
    3/8"
    		0.406"0.875"0.120" to 0.130"——1091201A0310000
    7/16"
    		0.469"1.000"0.151" to 0.161"——1091201A03200000
    1/2"
    		0.531"1.000"0.183" to 0.193"—Material Certificate
    		1091201A03300000
    5/8"
    		0.656"1.250"0.245" to 0.255"—Material Certificate
    		591201A03500000
    3/4"
    		0.781"1.500"0.245" to 0.255"—Material Certificate
    		591201A03600000
    7/8"
    		0.906"1.750"0.245" to 0.255"—Material Certificate
    		191201A0370000
    1"
    		1.031"2.000"0.308" to 0.318"—Material Certificate
    		191201A0380000
    1 1/8"
    		1.156"2.250"0.308" to 0.318"—Material Certificate
    		191201A0390000
    1 1/4"
    		1.281"2.250"0.308" to 0.318"——191201A0400000
     
    Corrosion-Resistant Galvanized Steel
    1/2"
    		0.562"3.000"0.235" to 0.265"——198970A1000000
    5/8"
    		0.688"3.000"0.235" to 0.265"——198970A1250000
    3/4"
    		0.812"3.000"0.235" to 0.265"—Material Certificate
    		198970A1500000
    7/8"
    		0.938"3.000"0.235" to 0.265"——198970A1750000
    1"
    		1.062"3.250"0.235" to 0.265"——198970A2000000
    1 1/4"
    		1.375"4.000"0.485" to 0.515"—Material Certificate
    		198970A22500000
     
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