McMaster-Carr logo
    Filter by
    System of Measurement
    DFARS Specialty Metals
    Industrial Info Compare
    Export Control Classification Number (ECCN)
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    245 Products

    Structural Washers

    Distribute pressure under structural screws and nuts in columns, joists, and I-beams. These thick washers are tested and certified to meet industry standards for handling high-stress loads.
    Steel
    Image of Product. Front orientation. Washers. Structural Washers.
    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.
    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
    Pkg.
    Qty.
    Pkg.
    Steel
    1/2"
    0.531"1.062"0.097" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1100000000000000000
    5/8"
    0.688"1.312"0.122" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 15000000000000000
    3/4"
    0.812"1.469"0.122" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 15000000000000000
    7/8"
    0.938"1.750"0.136" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 12500000000000000
    1"
    1.062"2.000"0.136" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 12500000000000000
    1 1/8"
    1.188"2.250"0.136" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 11000000000000000
    1 1/4"
    1.375"2.500"0.136" to 0.177"ASTM Grade A325, ASTM Grade A490ASME B18.21.1, ASTM F436 Type 11000000000000000
    1 3/8"
    1.531"2.750"0.136" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 11000000000000000
    1 1/2"
    1.625"3.000"0.136" to 0.177"ASTM Grade A325, ASTM Grade A490ASME B18.21.1, ASTM F436 Type 11000000000000000
    1 5/8"
    1.770"3.250"0.178" to 0.280"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1500000000000000
    1 3/4"
    1.875"3.375"0.178" to 0.280"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1500000000000000
    1 7/8"
    2.000"3.500"0.178" to 0.280"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1500000000000000
    2"
    2.125"3.750"0.178" to 0.280"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1500000000000000
    2 1/4"
    2.407"4.000"0.240" to 0.340"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 110000000000000
    2 1/2"
    2.657"4.500"0.240" to 0.340"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 110000000000000
    2 3/4"
    2.907"5.000"0.240" to 0.340"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 110000000000000
    3"
    3.157"5.500"0.240" to 0.340"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1100000000000000
    M12
    13.0 mm24.0 mm2.7 mm to 3.3 mmISO Class 10.9
    DIN 6916, ISO 7416100000000000000
    M14
    15.0 mm28.0 mm2.7 mm to 3.3 mmISO Class 10.9
    DIN 6916, ISO 74161000000000000000
    M16
    17.0 mm30.0 mm3.7 mm to 4.3 mmISO Class 10.9
    DIN 6916, ISO 741650000000000000
    M20
    21.0 mm37.0 mm3.7 mm to 4.3 mmISO Class 10.9
    DIN 6916, ISO 741650000000000000
    M22
    23.0 mm39.0 mm3.7 mm to 4.3 mmISO Class 10.9
    DIN 6916, ISO 7416500000000000000
    M24
    25.0 mm44.0 mm3.7 mm to 4.3 mmISO Class 10.9
    DIN 6916, ISO 741610000000000000
    M27
    28.0 mm50.0 mm4.4 mm to 5.6 mmISO Class 10.9
    DIN 6916, ISO 741610000000000000
    M30
    31.0 mm56.0 mm4.4 mm to 5.6 mmISO Class 10.9
    DIN 6916, ISO 7416100000000000000
    M36
    37.0 mm66.0 mm5.4 mm to 6.6 mmISO Class 10.9
    DIN 6916, ISO 7416100000000000000
     
    Corrosion-Resistant Galvanized Steel
    1/2"
    0.531"1.062"0.097" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 15000000000000000
    5/8"
    0.688"1.312"0.122" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 12500000000000000
    3/4"
    0.812"1.469"0.122" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 12500000000000000
    7/8"
    0.938"1.750"0.136" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1100000000000000
    1"
    1.062"2.000"0.136" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 11000000000000000
    1 1/8"
    1.188"2.250"0.136" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 11000000000000000
    1 1/4"
    1.375"2.500"0.136" to 0.177"ASTM Grade A325, ASTM Grade A490ASME B18.21.1, ASTM F436 Type 11000000000000000
    1 3/8"
    1.531"2.750"0.136" to 0.177"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 11000000000000000
    1 1/2"
    1.625"3.000"0.136" to 0.177"ASTM Grade A325, ASTM Grade A490ASME B18.21.1, ASTM F436 Type 1500000000000000
    1 5/8"
    1.770"3.250"0.178" to 0.280"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1500000000000000
    1 3/4"
    1.875"3.375"0.178" to 0.280"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1500000000000000
    1 7/8"
    2.000"3.500"0.178" to 0.280"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 110000000000000
    2"
    2.125"3.750"0.178" to 0.280"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 110000000000000
    2 1/4"
    2.407"4.000"0.240" to 0.340"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 110000000000000
    2 1/2"
    2.657"4.500"0.240" to 0.340"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1100000000000000
    2 3/4"
    2.907"5.000"0.240" to 0.340"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1100000000000000
    3"
    3.157"5.500"0.240" to 0.340"ASTM Grade A325, ASTM Grade A490ASTM F436 Type 1100000000000000
    M12
    13.0 mm24.0 mm2.7 mm to 3.3 mmISO Class 10.9
    DIN 6916, ISO 74162500000000000000
    M14
    15.0 mm28.0 mm2.7 mm to 3.3 mmISO Class 10.9
    DIN 6916, ISO 74161000000000000000
    M16
    17.0 mm30.0 mm3.7 mm to 4.3 mmISO Class 10.9
    DIN 6916, ISO 7416100000000000000
    M20
    21.0 mm37.0 mm3.7 mm to 4.3 mmISO Class 10.9
    DIN 6916, ISO 74161000000000000000
    M22
    23.0 mm39.0 mm3.7 mm to 4.3 mmISO Class 10.9
    DIN 6916, ISO 7416500000000000000
    M24
    25.0 mm44.0 mm3.7 mm to 4.3 mmISO Class 10.9
    DIN 6916, ISO 7416500000000000000
    M27
    28.0 mm50.0 mm4.4 mm to 5.6 mmISO Class 10.9
    DIN 6916, ISO 741610000000000000
    M30
    31.0 mm56.0 mm4.4 mm to 5.6 mmISO Class 10.9
    DIN 6916, ISO 741610000000000000
     

    Square Washers

    With flat sides, these washers fit into slots and channels and won't rotate out of position. They are also wider and thicker than most round washers, so they distribute heavier loads across a larger surface area. Square washers are commonly used to anchor heavy machinery, fasten framing to floors, and hang pipe and conduit from strut channel.
    Stainless SteelAbout Stainless Steel
    Image of Product. Bottom orientation. Washers. Square Washers.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these washers resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Super-Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these washers won't degrade when exposed to harsh weather, salt water, and most chemicals.
    Material Certificate—Washers include a report with a traceable lot number.
    For Screw
    Size
    ID
    Wd.
    Thk.
    Certificate Type
    Each
    18-8 Stainless Steel
    No. 10
    0.219"2.000"0.056" to 0.063"00000000000000
    1/4"
    0.313"2.000"0.235" to 0.265"0000000000000
    5/16"
    0.343"2.000"0.056" to 0.063"0000000000000
    3/8"
    0.438"2.000"0.235" to 0.265"0000000000000
    7/16"
    0.500"2.000"0.235" to 0.265"0000000000000
    1/2"
    0.563"2.000"0.112" to 0.128"00000000000000
    1/2"
    0.563"2.000"0.235" to 0.265"0000000000000
    1/2"
    0.563"3.000"0.235" to 0.265"00000000000000
    5/8"
    0.688"2.000"0.112" to 0.128"00000000000000
    5/8"
    0.688"2.000"0.235" to 0.265"0000000000000
    5/8"
    0.688"3.000"0.235" to 0.265"00000000000000
    3/4"
    0.813"2.000"0.112" to 0.128"00000000000000
    3/4"
    0.813"2.000"0.235" to 0.265"0000000000000
    3/4"
    0.813"3.000"0.235" to 0.265"00000000000000
    7/8"
    0.938"2.000"0.235" to 0.265"0000000000000
    7/8"
    0.938"3.000"0.235" to 0.265"Material Certificate00000000000000
    1"
    1.063"2.000"0.235" to 0.265"0000000000000
    1"
    1.063"3.000"0.235" to 0.265"00000000000000
    1 1/4"
    1.313"2.000"0.235" to 0.265"0000000000000
    1 1/4"
    1.313"3.000"0.220" to 0.280"00000000000000
    M6
    9.0 mm50.0 mm6.0 mm00000000000000
    M8
    11.0 mm50.0 mm6.0 mm00000000000000
    M10
    13.0 mm50.0 mm6.0 mm00000000000000
    M12
    16.0 mm50.0 mm6.0 mm00000000000000
    M14
    18.0 mm50.0 mm6.0 mmMaterial Certificate00000000000000
    M16
    22.0 mm50.0 mm6.0 mmMaterial Certificate00000000000000
    M20
    26.0 mm50.0 mm6.0 mmMaterial Certificate00000000000000
    M22
    28.0 mm50.0 mm6.0 mmMaterial Certificate00000000000000
    M24
    32.0 mm50.0 mm6.0 mmMaterial Certificate00000000000000
    M30
    38.0 mm50.0 mm6.0 mmMaterial Certificate00000000000000
     
    Super-Corrosion-Resistant 316 Stainless Steel
    No. 8
    0.187"0.500"0.048" to 0.075"0000000000000
    No. 8
    0.187"0.547"0.034" to 0.060"0000000000000
    No. 8
    0.188"2.000"0.056" to 0.063"0000000000000
    No. 10
    0.219"2.000"0.056" to 0.063"0000000000000
    No. 12
    0.265"0.438"0.048" to 0.075"0000000000000
    1/4"
    0.285"0.500"0.114" to 0.126"0000000000000
    1/4"
    0.285"2.000"0.056" to 0.063"0000000000000
    5/16"
    0.375"2.000"0.090" to 0.115"0000000000000
    3/8"
    0.406"0.750"0.114" to 0.126"0000000000000
    3/8"
    0.406"0.813"0.114" to 0.126"0000000000000
    3/8"
    0.438"2.000"0.115" to 0.135"0000000000000
    1/2"
    0.530"0.813"0.115" to 0.135"0000000000000
    1/2"
    0.531"1.250"0.100" to 0.111"0000000000000
    1/2"
    0.562"2.000"0.020" to 0.042"0000000000000
    1/2"
    0.562"2.000"0.090" to 0.134"0000000000000
    5/8"
    0.656"1.250"0.090" to 0.115"0000000000000
    3/4"
    0.812"1.250"0.100" to 0.111"0000000000000
    3/4"
    0.812"2.000"0.114" to 0.126"0000000000000
     
    Steel
    Image of Product. Bottom orientation. Washers. Square Washers.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    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.
    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 Screw
    Size
    ID
    Wd.
    Thk.
    Certificate Type
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    No. 4
    0.125"0.500"0.042" to 0.051"10000000000000000
    No. 4
    0.125"0.750"0.042" to 0.051"1000000000000000
    No. 4
    0.125"2.000"0.054" to 0.066"500000000000000
    No. 6
    0.156"0.500"0.042" to 0.051"1000000000000000
    No. 6
    0.156"0.750"0.042" to 0.051"1000000000000000
    No. 6
    0.156"2.000"0.054" to 0.066"500000000000000
    No. 8
    0.188"0.500"0.042" to 0.051"1000000000000000
    No. 8
    0.188"0.750"0.042" to 0.051"1000000000000000
    No. 8
    0.188"2.000"0.054" to 0.066"500000000000000
    No. 10
    0.219"0.500"0.042" to 0.051"1000000000000000
    No. 10
    0.219"0.750"0.042" to 0.051"1000000000000000
    No. 10
    0.219"2.000"0.054" to 0.066"500000000000000
    1/4"
    0.285"1.000"0.054" to 0.066"1000000000000000
    1/4"
    0.285"1.500"0.054" to 0.066"1000000000000000
    1/4"
    0.312"0.750"0.110" to 0.130"1000000000000000
    1/4"
    0.312"2.000"0.225" to 0.265"500000000000000
    5/16"
    0.343"0.750"0.042" to 0.051"1000000000000000
    5/16"
    0.375"0.875"0.120" to 0.140"1000000000000000
    5/16"
    0.375"1.750"0.125" to 0.145"500000000000000
    5/16"
    0.375"2.000"0.125" to 0.145"500000000000000
    3/8"
    0.406"0.750"0.042" to 0.051"1000000000000000
    3/8"
    0.406"1.375"0.112" to 0.127"1000000000000000
    3/8"
    0.406"3.000"0.112" to 0.127"10000000000000
    3/8"
    0.438"1.000"0.120" to 0.140"1000000000000000
    3/8"
    0.438"1.500"0.115" to 0.135"500000000000000
    3/8"
    0.438"2.000"0.110" to 0.140"500000000000000
    3/8"
    0.438"2.000"0.225" to 0.265"500000000000000
    7/16"
    0.469"2.000"0.112" to 0.127"500000000000000
    1/2"
    0.531"1.000"0.097" to 0.113"1000000000000000
    1/2"
    0.531"1.500"0.112" to 0.127"1000000000000000
    1/2"
    0.531"1.750"0.112" to 0.127"500000000000000
    1/2"
    0.562"1.375"0.170" to 0.200"1000000000000000
    1/2"
    0.562"2.000"0.025" to 0.040"500000000000000
    1/2"
    0.562"2.000"0.105" to 0.135"500000000000000
    1/2"
    0.562"2.000"0.225" to 0.265"500000000000000
    1/2"
    0.562"3.000"0.220" to 0.280"100000000000000
    5/8"
    0.656"1.375"0.112" to 0.127"1000000000000000
    5/8"
    0.688"1.750"0.170" to 0.200"500000000000000
    5/8"
    0.688"2.000"0.112" to 0.128"10000000000000
    5/8"
    0.688"2.000"0.225" to 0.265"500000000000000
    5/8"
    0.688"3.000"0.225" to 0.265"500000000000000
    5/8"
    0.688"4.000"0.220" to 0.280"100000000000000
    3/4"
    0.812"2.000"0.112" to 0.128"10000000000000
    3/4"
    0.812"2.000"0.225" to 0.265"500000000000000
    3/4"
    0.812"3.000"0.220" to 0.280"100000000000000
    3/4"
    0.812"4.000"0.220" to 0.280"100000000000000
    7/8"
    0.938"2.000"0.220" to 0.280"10000000000000
    7/8"
    0.938"3.000"0.220" to 0.280"100000000000000
    7/8"
    0.938"4.000"0.220" to 0.280"100000000000000
    1"
    1.062"1.750"0.225" to 0.265"500000000000000
    1"
    1.062"2.000"0.220" to 0.280"10000000000000
    1"
    1.062"3.000"0.220" to 0.280"100000000000000
    1"
    1.062"4.000"0.220" to 0.280"100000000000000
    1 1/4"
    1.312"2.000"0.220" to 0.280"10000000000000
    1 1/4"
    1.312"2.500"0.110" to 0.140"500000000000000
    1 1/4"
    1.312"3.000"0.220" to 0.280"100000000000000
    1 1/4"
    1.312"4.000"0.220" to 0.280"100000000000000
    1 1/2"
    1.562"3.000"0.220" to 0.280"100000000000000
    1 1/2"
    1.562"4.000"0.220" to 0.280"100000000000000
    1 3/4"
    1.812"3.000"0.220" to 0.280"100000000000000
    1 3/4"
    1.812"4.000"0.220" to 0.280"100000000000000
    2"
    2.062"4.000"0.220" to 0.280"100000000000000
     
    Black-Oxide Steel
    No. 10
    0.219"2.000"0.054" to 0.066"10000000000000
    1/4"
    0.312"2.000"0.235" to 0.265"10000000000000
    5/16"
    0.343"2.000"0.054" to 0.066"10000000000000
    3/8"
    0.438"2.000"0.235" to 0.265"10000000000000
    7/16"
    0.500"2.000"0.235" to 0.265"10000000000000
    1/2"
    0.562"2.000"0.235" to 0.265"10000000000000
    1/2"
    0.562"3.000"0.235" to 0.265"100000000000000
    5/8"
    0.688"2.000"0.235" to 0.265"10000000000000
    5/8"
    0.688"3.000"0.235" to 0.265"100000000000000
    5/8"
    0.688"4.000"0.235" to 0.265"100000000000000
    3/4"
    0.812"2.000"0.235" to 0.265"10000000000000
    3/4"
    0.812"3.000"0.235" to 0.265"100000000000000
    3/4"
    0.812"4.000"0.235" to 0.265"100000000000000
    7/8"
    0.938"2.000"0.235" to 0.265"10000000000000
    7/8"
    0.938"3.000"0.235" to 0.265"100000000000000
    7/8"
    0.938"4.000"0.235" to 0.265"100000000000000
    1"
    1.062"2.000"0.235" to 0.265"10000000000000
    1"
    1.062"3.000"0.235" to 0.265"100000000000000
    1"
    1.062"4.000"0.235" to 0.265"100000000000000
    1 1/4"
    1.312"2.000"0.235" to 0.265"10000000000000
    1 1/4"
    1.312"3.000"0.235" to 0.265"100000000000000
    1 1/4"
    1.312"4.000"0.220" to 0.280"100000000000000
    1 1/2"
    1.562"3.000"0.235" to 0.265"100000000000000
    1 1/2"
    1.562"4.000"0.220" to 0.280"100000000000000
    1 3/4"
    1.812"4.000"0.220" to 0.280"Material Certificate100000000000000
    1 3/4"
    1.938"3.000"0.235" to 0.265"100000000000000
    2"
    2.062"4.000"0.235" to 0.265"100000000000000
    M6
    9.0 mm50.0 mm6.0 mm10000000000000
    M8
    11.0 mm50.0 mm6.0 mm10000000000000
    M10
    13.0 mm50.0 mm6.0 mm10000000000000
    M12
    16.0 mm50.0 mm6.0 mm10000000000000
    M14
    18.0 mm50.0 mm6.0 mm10000000000000
    M16
    22.0 mm50.0 mm6.0 mm10000000000000
    M20
    26.0 mm50.0 mm6.0 mm10000000000000
    M22
    28.0 mm50.0 mm6.0 mm10000000000000
    M24
    32.0 mm50.0 mm6.0 mm10000000000000
    M30
    38.0 mm50.0 mm6.0 mm10000000000000
     
    Corrosion-Resistant Galvanized Steel
    1/4"
    0.312"2.000"0.220" to 0.280"10000000000000
    5/16"
    0.343"2.000"0.054" to 0.070"10000000000000
    3/8"
    0.438"2.000"0.235" to 0.265"10000000000000
    1/2"
    0.562"2.000"0.235" to 0.265"10000000000000
    1/2"
    0.562"3.000"0.235" to 0.265"10000000000000
    5/8"
    0.688"2.000"0.235" to 0.265"10000000000000
    5/8"
    0.688"3.000"0.235" to 0.265"100000000000000
    5/8"
    0.688"4.000"0.235" to 0.265"100000000000000
    3/4"
    0.812"2.000"0.235" to 0.265"10000000000000
    3/4"
    0.812"3.000"0.235" to 0.265"100000000000000
    3/4"
    0.812"4.000"0.235" to 0.265"100000000000000
    7/8"
    0.938"2.000"0.235" to 0.265"10000000000000
    7/8"
    0.938"3.000"0.235" to 0.265"100000000000000
    7/8"
    0.938"4.000"0.235" to 0.265"100000000000000
    1"
    1.062"2.000"0.220" to 0.280"10000000000000
    1"
    1.062"3.000"0.235" to 0.265"100000000000000
    1"
    1.062"4.000"0.235" to 0.265"100000000000000
    1 1/4"
    1.312"2.000"0.220" to 0.280"10000000000000
    1 1/4"
    1.312"3.000"0.220" to 0.280"100000000000000
    1 1/4"
    1.312"4.000"0.220" to 0.280"100000000000000
    1 1/2"
    1.562"3.000"0.220" to 0.280"100000000000000
    1 1/2"
    1.562"4.000"0.220" to 0.280"100000000000000
    1 3/4"
    1.812"4.000"0.220" to 0.280"100000000000000
    1 3/4"
    1.938"3.000"0.220" to 0.280"100000000000000
    2"
    2.062"4.000"0.220" to 0.280"100000000000000
    M6
    9.0 mm50.0 mm6.0 mm10000000000000
    M8
    11.0 mm50.0 mm6.0 mm10000000000000
    M10
    13.0 mm50.0 mm6.0 mm10000000000000
    M12
    16.0 mm50.0 mm6.0 mm10000000000000
    M14
    18.0 mm50.0 mm6.0 mm10000000000000
    M16
    22.0 mm50.0 mm6.0 mm100000000000000
    M20
    26.0 mm50.0 mm6.0 mm100000000000000
    M22
    28.0 mm50.0 mm6.0 mmMaterial Certificate100000000000000
    M24
    32.0 mm50.0 mm6.0 mm100000000000000
    M30
    38.0 mm50.0 mm6.0 mm100000000000000
     

    Rectangular Washers

    Narrower than clipped and square washers, these fit in the thinnest channels and slots. When positioned against a flat edge, they won't rotate out of position, so your assembly stays stable. Rectangular washers have a large surface area to withstand heavy loads and distribute pressure evenly under nuts and screws. They are commonly used to anchor heavy machinery, fasten framing to floors, and hang pipe and conduit from strut channel.
    Stainless SteelAbout Stainless Steel
    Image of Product. Bottom orientation. Washers. Rectangular Washers.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these washers resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    For Screw
    Size
    ID
    Lg.
    Wd.
    Thk.
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    No. 4
    0.125"0.500"0.250"0.024" to 0.038"50000000000000000
    No. 6
    0.143"0.400"0.220"0.028" to 0.034"5000000000000000
    No. 6
    0.147"0.375"0.330"0.028" to 0.034"5000000000000000
    No. 6
    0.158"0.438"0.375"0.036" to 0.044"5000000000000000
    No. 8
    0.180"0.750"0.375"0.046" to 0.054"2500000000000000
    No. 10
    0.203"0.875"0.438"0.027" to 0.033"2500000000000000
    No. 12
    0.234"1.000"0.500"0.036" to 0.045"2500000000000000
    1/4"
    0.281"1.250"0.625"0.043" to 0.057"1000000000000000
    5/16"
    0.344"1.500"0.750"0.043" to 0.057"500000000000000
    3/8"
    0.406"1.500"0.750"0.056" to 0.064"500000000000000
    1/2"
    0.531"2.000"1.000"0.056" to 0.064"500000000000000
    5/8"
    0.687"2.250"1.125"0.071" to 0.085"10000000000000
     
    back to top