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    47 Products

    Ultra-High-Temperature Ceramic Washers

    Image of Product. Front orientation. Washers. Ultra-High-Temperature Ceramic Washers.
    Our most heat-resistant washers, even at blistering temperatures up to 3000° F. They distribute pressure evenly under nuts and screws in industrial furnaces, kilns, and other extreme-temperature environments. Ceramic may crack or dent if subjected to hard bumps, however, so these washers are not recommended for high-vibration applications.
    Temp.
    Range
    For Screw
    Size
    ID
    OD
    Thk.
    Min.
    Max.,
    ° F
    Specs. Met
    Color
    Each
    No. 0
    		0.068"0.188"0.022" to 0.028"Not Rated3,000—Off-White00000000000000
    No. 2
    		0.094"0.250"0.028" to 0.036"Not Rated3,000—Off-White0000000000000
    No. 4
    		0.125"0.375"0.036" to 0.045"Not Rated3,000—Off-White0000000000000
    No. 5
    		0.141"0.406"0.036" to 0.045"Not Rated3,000—Off-White0000000000000
    No. 6
    		0.156"0.438"0.036" to 0.045"Not Rated3,000—Off-White0000000000000
    No. 8
    		0.188"0.500"0.036" to 0.045"Not Rated3,000—Off-White0000000000000
    No. 10
    		0.203"0.562"0.036" to 0.045"Not Rated3,000—Off-White0000000000000
    No. 12
    		0.234"0.625"0.056" to 0.071"Not Rated3,000—Off-White0000000000000
    1/4"
    		0.281"0.734"0.056" to 0.071"Not Rated3,000—Off-White0000000000000
    5/16"
    		0.344"0.875"0.056" to 0.071"Not Rated3,000—Off-White0000000000000
    3/8"
    		0.406"1.000"0.056" to 0.071"Not Rated3,000—Off-White0000000000000
    7/16"
    		0.469"1.125"0.056" to 0.071"Not Rated3,000—Off-White0000000000000
    1/2"
    		0.531"1.250"0.090" to 0.112"Not Rated3,000—Off-White0000000000000
    9/16"
    		0.594"1.469"0.090" to 0.112"Not Rated3,000—Off-White0000000000000
    5/8"
    		0.656"1.750"0.090" to 0.112"Not Rated3,000—Off-White0000000000000
    3/4"
    		0.812"2.000"0.090" to 0.112"Not Rated3,000—Off-White00000000000000
    7/8"
    		0.938"2.250"0.146" to 0.174"Not Rated3,000ASME B18.21.1Off-White00000000000000
    1"
    		1.062"2.500"0.146" to 0.174"Not Rated3,000ASME B18.21.1Off-White00000000000000
    M2
    		2.6 mm6.0 mm0.6 mm to 0.9 mmNot Rated3,000ASME B18.22MOff-White0000000000000
    M3
    		3.6 mm10.0 mm0.8 mm to 1.2 mmNot Rated3,000ASME B18.22MOff-White0000000000000
    M4
    		4.8 mm12.0 mm1.0 mm to 1.4 mmNot Rated3,000ASME B18.22MOff-White0000000000000
    M5
    		5.6 mm15.0 mm1.2 mm to 1.8 mmNot Rated3,000—Off-White0000000000000
    M6
    		6.8 mm18.8 mm1.2 mm to 1.8 mmNot Rated3,000—Off-White0000000000000
    M8
    		9.0 mm25.4 mm1.6 mm to 2.3 mmNot Rated3,000ASME B18.22MOff-White0000000000000
    M10
    		11.0 mm28.0 mm2.0 mm to 2.8 mmNot Rated3,000ASME B18.22MOff-White0000000000000
    M12
    		13.4 mm34.0 mm2.5 mm to 3.5 mmNot Rated3,000ASME B18.22MOff-White0000000000000
    M14
    		15.4 mm39.0 mm2.5 mm to 3.5 mmNot Rated3,000ASME B18.22MOff-White00000000000000
    M16
    		17.4 mm44.0 mm3.0 mm to 4.0 mmNot Rated3,000ASME B18.22MOff-White00000000000000
    M20
    		22.0 mm50.0 mm3.5 mm to 4.6 mmNot Rated3,000ASME B18.22MOff-White00000000000000

    Electrical-Insulating Unthreaded Spacers

    Image of Product. Front orientation. Spacers. Electrical-Insulating Unthreaded Spacers.
    Stop electrical current in its tracks—these nonconductive spacers prevent it from passing through your components. They’re often used to insulate circuit boards and enclosures.
    Ultra-High-Temperature Grade L5 Ceramic—Our most heat-resistant spacers, even at blistering temperatures up to 1700° F. However, they may crack or dent if subjected to hard bumps and vibrations.
    Lg.
    For Screw
    Size
    ID
    Dielectric Strength,
    V/mil
    Temp. Range,
    ° F
    Pkg.
    Qty.
    Pkg.
    Ultra-High-Temperature Grade L5 Ceramic
     
    1/4" OD
    3/16"No. 3
    		0.115"27550 to 1,700100000000000000
    3/16"No. 4
    		0.140"27550 to 1,70010000000000000
    1/4"No. 3
    		0.115"27550 to 1,70010000000000000
    1/4"No. 4
    		0.140"27550 to 1,70010000000000000
    3/8"No. 3
    		0.115"27550 to 1,70010000000000000
    3/8"No. 4
    		0.140"27550 to 1,70010000000000000
    1/2"No. 4
    		0.140"27550 to 1,70010000000000000
    5/8"No. 4
    		0.140"27550 to 1,70010000000000000
    3/4"No. 4
    		0.140"27550 to 1,70010000000000000
     
    3/8" OD
    1/4"No. 8
    		0.192"27550 to 1,70010000000000000
    3/8"No. 8
    		0.192"27550 to 1,70010000000000000
    1/2"No. 8
    		0.192"27550 to 1,70010000000000000
    3/4"No. 8
    		0.192"27550 to 1,70010000000000000
    1"No. 8
    		0.192"27550 to 1,70010000000000000
     
    1/2" OD
    3/8"No. 10
    		0.250"27550 to 1,70010000000000000
    1/2"No. 10
    		0.250"27550 to 1,70010000000000000
    3/4"No. 10
    		0.250"27550 to 1,70010000000000000
    1"No. 10
    		0.250"27550 to 1,70010000000000000
     
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