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    9 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. 12
    		0.025"0.254"0.220"0.330"0.125"-40180Off-White2500000000000000
    No. 12
    		0.125"0.254"0.220"0.330"0.225"-40180Off-White2500000000000000
    No. 12
    		0.250"0.254"0.220"0.330"0.350"-40180Off-White2500000000000000
    No. 12
    		1.000"0.254"0.220"0.330"1.100"-40180Off-White2500000000000000
     

    Mil. Spec. Washers

    Image of Product. Front orientation. Washers. Mil. Spec. Washers.
    These washers are manufactured and tested to strict U.S. military standards for material and construction. They take the pressure off screws and nuts to protect mounting surfaces.
    Stainless SteelAbout Stainless Steel
    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
    OD
    Thk.
    Mil.
    Spec.
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    No. 10
    		0.220"0.400"0.040" to 0.050"MS51496P8210000000000000000
     

    SAE Washers

    Originally designed for the automotive industry, these washers conform to SAE sizing standards. They generally have smaller diameters than USS washers to fit in cramped spots and are thinner to create more precise gaps. Washers distribute pressure under screws and nuts to protect your mounting surface.
    Steel
    Image of Product. Front orientation. Washers. SAE Washers.
    Zinc-Yellow-Chromate-Plated Steel—With the same corrosion resistance as zinc-plated steel, these withstand occasional exposure to moisture.
    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.
    Zinc-Yellow-Chromate-Plated Steel
    No. 10
    		0.220"0.500"0.036" to 0.065"SAE Grade 8
    		ASME B18.21.110000000000000000
     

    Plastic Washers

    Image of Product. Front orientation. Washers. Plastic Washers.
    All of these washers are lightweight, nonconductive, and naturally rust resistant. They are commonly used in electronics and automation applications to take the pressure off screws and nuts and protect mounting surfaces.
    High-Strength High-Temperature PEEK—These washers bear heavier loads than most other plastic washers. In addition, they won't melt or deform when exposed to high temperatures up to 550° F. PEEK washers aren't very impact resistant, however, so they may crack or dent if subjected to hard bumps and vibrations.
    Extreme-Strength High-Temperature Carbon-Filled PEEK—Second only to phenolic in terms of strength, these washers stand up to high-stress applications. They won't melt or deform when exposed to high temperatures up to 500° F.
    Temp.
    Range, ° F
    For Screw
    Size
    ID
    OD
    Thk.
    Min.
    Max.
    Specs. Met
    Color
    Pkg.
    Qty.
    Pkg.
    High-Strength High-Temperature PEEK
    No. 10
    		0.220"0.510"0.020" to 0.060"-50500—Beige1000000000000000
    No. 10
    		0.220"0.510"0.020" to 0.060"-20500ASME B18.21.1Black100000000000000
     
    Extreme-Strength High-Temperature Carbon-Filled PEEK
    No. 10
    		0.220"0.510"0.036" to 0.065"-50500ASME B18.21.1Black100000000000000
     
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