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    77 Products

    Insulating Sleeve Washers

    Cover screw threads to stop electrical current in its tracks and prevent short circuits. These washers create a barrier between the screw threads and the mating surface when mounted in through holes. This barrier also extends the life of your assembly by preventing galvanic corrosion, which is when two different metals rust more quickly due to contact with each other.
    Rolled Edge for Sealing
    Image of Product. Front orientation. Insulating Washers. Insulating Sleeve Washers, Rolled Edge.
    The rolled edge compresses into the screw threads as you tighten, sealing out dirt, oil, and other contaminants.
    Nylon—Our most versatile insulating washers, these block unwanted current in everything from switches and circuit breakers to control panels and electric motors.
    Sleeve
    Temp.
    Range, ° F
    For Screw
    Size
    Ht.
    OD
    ID
    OD
    Overall
    Ht.
    Min.
    Max.
    Color
    Pkg.
    Qty.
    Pkg.
    Nylon
    No. 2
    		0.015"0.112"0.088"0.175"0.065"-40180Off-White2590097A04000000
    No. 2
    		0.750"0.112"0.088"0.175"0.800"-40180Off-White2590097A11400000
    No. 2
    		1.000"0.112"0.088"0.175"1.050"-40180Off-White2590097A11500000
    No. 4
    		0.015"0.140"0.116"0.195"0.080"-40180Off-White2590097A0800000
    No. 4
    		0.125"0.140"0.116"0.195"0.190"-40180Off-White2590097A11600000
    No. 6
    		0.020"0.172"0.142"0.225"0.095"-40180Off-White2590097A1300000
    No. 6
    		0.125"0.172"0.142"0.225"0.200"-40180Off-White2590097A12200000
    No. 6
    		1.000"0.172"0.142"0.225"1.075"-40180Off-White2590097A12600000
    No. 8
    		0.035"0.198"0.168"0.270"0.115"-40180Off-White2590097A1500000
    No. 8
    		0.125"0.198"0.168"0.270"0.205"-40180Off-White2590097A12700000
    No. 10
    		0.035"0.228"0.194"0.300"0.115"-40180Off-White2590097A1700000
    No. 10
    		0.125"0.228"0.194"0.300"0.205"-40180Off-White2590097A13300000
    No. 10
    		0.250"0.228"0.194"0.300"0.330"-40180Off-White2590097A18000000
    No. 12
    		0.025"0.254"0.220"0.330"0.125"-40180Off-White2590097A1900000
    No. 12
    		0.125"0.254"0.220"0.330"0.225"-40180Off-White2590097A13700000
    No. 12
    		0.250"0.254"0.220"0.330"0.350"-40180Off-White2590097A13800000
    No. 12
    		1.000"0.254"0.220"0.330"1.100"-40180Off-White2590097A14200000
    1/4"
    		0.025"0.292"0.252"0.365"0.125"-40180Off-White2590097A2100000
    1/4"
    		0.125"0.292"0.252"0.365"0.225"-40180Off-White2590097A14300000
    1/4"
    		0.250"0.292"0.252"0.365"0.350"-40180Off-White2590097A22000000
    1/4"
    		0.500"0.292"0.252"0.365"0.600"-40180Off-White2590097A52000000
    1/4"
    		1.000"0.292"0.252"0.365"1.100"-40180Off-White2590097A14500000
    5/16"
    		0.125"0.356"0.316"0.460"0.230"-40180Off-White2590097A14600000
    5/16"
    		0.250"0.356"0.316"0.460"0.355"-40180Off-White2590097A54000000
    5/16"
    		0.500"0.356"0.316"0.460"0.605"-40180Off-White2590097A14700000
    3/8"
    		0.035"0.419"0.379"0.535"0.160"-40180Off-White2590097A23000000
    3/8"
    		0.125"0.419"0.379"0.535"0.250"-40180Off-White2590097A15100000
    3/8"
    		0.250"0.419"0.379"0.535"0.375"-40180Off-White2590097A24000000
    3/8"
    		0.500"0.419"0.379"0.535"0.625"-40180Off-White2590097A15200000
    3/8"
    		1.000"0.419"0.379"0.535"1.125"-40180Off-White2590097A15400000
    7/16"
    		0.125"0.486"0.441"0.600"0.260"-40180Off-White2590097A15500000
    7/16"
    		0.250"0.486"0.441"0.600"0.385"-40180Off-White2590097A15600000
    7/16"
    		1.000"0.486"0.441"0.600"1.135"-40180Off-White2590097A15900000
    1/2"
    		0.040"0.548"0.504"0.645"0.195"-40180Off-White2590097A25000000
    1/2"
    		0.125"0.548"0.504"0.645"0.280"-40180Off-White2590097A16100000
    1/2"
    		0.250"0.548"0.504"0.645"0.405"-40180Off-White2590097A16200000
    1/2"
    		0.500"0.548"0.504"0.645"0.655"-40180Off-White2590097A26000000
    1/2"
    		0.750"0.548"0.504"0.645"0.905"-40180Off-White2590097A16300000
    1/2"
    		1.000"0.548"0.504"0.645"1.155"-40180Off-White2590097A16400000
    5/8"
    		0.125"0.679"0.629"0.800"0.285"-40180Off-White2590097A16500000
    5/8"
    		0.250"0.679"0.630"0.800"0.410"-40180Off-White2590097A55000000
    5/8"
    		0.500"0.679"0.629"0.800"0.660"-40180Off-White2590097A16600000
    5/8"
    		0.750"0.679"0.629"0.800"0.910"-40180Off-White2590097A16700000
    5/8"
    		1.000"0.679"0.629"0.800"1.160"-40180Off-White2590097A16800000
    3/4"
    		0.125"0.810"0.754"0.935"0.295"-40180Off-White2590097A16900000
    3/4"
    		0.250"0.810"0.754"0.935"0.420"-40180Off-White2590097A17100000
    3/4"
    		0.500"0.810"0.754"0.935"0.670"-40180Off-White2590097A17200000
    3/4"
    		0.750"0.810"0.754"0.935"0.920"-40180Off-White2590097A57000000
    3/4"
    		1.000"0.810"0.754"0.935"1.170"-40180Off-White2590097A17300000
    7/8"
    		0.125"0.954"0.879"1.030"0.305"-40180Off-White2590097A17400000
    7/8"
    		0.250"0.954"0.879"1.030"0.430"-40180Off-White2590097A17500000
    7/8"
    		1.000"0.954"0.879"1.030"1.180"-40180Off-White2590097A17800000
    1"
    		0.750"1.075"1.005"1.280"0.935"-40180Off-White2590097A18300000
    1"
    		1.000"1.075"1.005"1.280"1.185"-40180Off-White2590097A18400000
    M2.5
    		3.175 mm3.100 mm2.600 mm4.400 mm4.800 mm-40180Off-White2590097A18500000
    M3
    		3.175 mm3.700 mm3.100 mm5.000 mm4.800 mm-40180Off-White2590097A19100000
    M3
    		6.300 mm3.700 mm3.100 mm5.000 mm8.000 mm-40180Off-White2590097A19200000
    M3
    		12.700 mm3.700 mm3.100 mm5.000 mm14.300 mm-40180Off-White2590097A19300000
    M4
    		3.175 mm4.800 mm4.100 mm6.200 mm5.300 mm-40180Off-White2590097A19600000
    M4
    		6.300 mm4.800 mm4.100 mm6.200 mm8.400 mm-40180Off-White2590097A19700000
    M5
    		3.175 mm5.800 mm5.100 mm7.900 mm5.500 mm-40180Off-White2590097A20200000
    M5
    		12.700 mm5.800 mm5.100 mm7.900 mm15.000 mm-40180Off-White2590097A20400000
    M6
    		3.175 mm6.900 mm6.100 mm9.000 mm5.800 mm-40180Off-White2590097A20700000
    M6
    		25.400 mm6.900 mm6.100 mm9.000 mm28.000 mm-40180Off-White2590097A21200000
    M8
    		3.175 mm9.000 mm8.100 mm12.000 mm5.800 mm-40180Off-White2590097A21300000
    M8
    		6.300 mm9.000 mm8.100 mm12.000 mm9.000 mm-40180Off-White2590097A21400000
    M8
    		12.700 mm9.000 mm8.100 mm12.000 mm15.400 mm-40180Off-White2590097A21500000
    M8
    		19.050 mm9.000 mm8.100 mm12.000 mm21.700 mm-40180Off-White2590097A21600000
    M10
    		3.175 mm11.000 mm10.100 mm12.900 mm6.100 mm-40180Off-White2590097A21800000
    M10
    		6.300 mm11.000 mm10.100 mm12.900 mm9.500 mm-40180Off-White2590097A21900000
    M10
    		12.700 mm11.000 mm10.100 mm12.900 mm15.800 mm-40180Off-White2590097A22100000
    M10
    		25.400 mm11.000 mm10.100 mm12.900 mm28.500 mm-40180Off-White2590097A22300000
    M12
    		3.175 mm13.100 mm12.100 mm15.600 mm6.700 mm-40180Off-White2590097A22400000
    M12
    		12.700 mm13.100 mm12.100 mm15.600 mm16.300 mm-40180Off-White2590097A22600000
    M12
    		25.400 mm13.100 mm12.100 mm15.600 mm29.000 mm-40180Off-White2590097A22800000
    M16
    		3.175 mm17.300 mm16.100 mm20.300 mm7.000 mm-40180Off-White2590097A23500000
    M16
    		19.050 mm17.300 mm16.100 mm20.300 mm23.100 mm-40180Off-White2590097A23800000
     
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