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    35 Products

    General Purpose Washers

    Your go-to metal washer for every screw size. Washers take the pressure off nuts and screws to protect mounting surfaces.
    Stainless SteelAbout Stainless Steel
    Image of Product. Front orientation. Washers. General Purpose 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.
    For Screw
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    ID,
    mm
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    Specs. Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    M7
    		7.414.01.4 to 1.8DIN 125, ISO 708910000000000000000
     
    Super-Corrosion-Resistant 316 Stainless Steel
    M7
    		7.414.01.4 to 1.8DIN 125, ISO 708910000000000000000
     
    Steel
    Image of Product. Front orientation. Washers. General Purpose Washers.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    Black Super-Corrosion-Resistant-Coated Steel—Combines a finished appearance with the rust resistance of 316 stainless steel. The coating has been tested to extreme standards, including 1,000 hours of salt spray resistance, to hold up in wet and outdoor environments. Also known as black luster.
    For Screw
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    Qty.
    Pkg.
    Zinc-Plated Steel
    M7
    		7.414.01.4 to 1.8DIN 125, ISO 708910000000000000000
     
    Black Super-Corrosion-Resistant-Coated Steel
    M7
    		7.414.01.4 to 1.8DIN 125, ISO 708950000000000000
     
    AluminumAbout Aluminum
    Image of Product. Front orientation. Washers. General Purpose Washers.
    One-third the weight of steel, these washers are commonly used in robotics, automation, and other applications that have weight limits. They're an alternative to stainless steel for rust resistance, but aren't as strong.
    For Screw
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    Specs. Met
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    Qty.
    Pkg.
    Aluminum
    M7
    		7.414.01.4 to 1.8DIN 125, ISO 708910000000000000000
     
    Brass
    Image of Product. Front orientation. Washers. General Purpose Washers.
    Softer than most metals, brass washers won't damage other fastening components.
    Brass—With a warm, polished look, these washers are often chosen for their appearance. Similar to 18-8 stainless steel, brass is corrosion resistant enough to stand up to wet environments.
    For Screw
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    Brass
    M7
    		7.414.01.4 to 1.8DIN 125, ISO 70891000000000000000
     

    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.
    Stainless SteelAbout Stainless Steel
    Image of Product. Front orientation. Washers. Oversized 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.
    Black-Oxide 18-8 Stainless Steel—Typically chosen for their appearance, these washers have a dark, matte coating to create a finished look. They resist rust in wet and outdoor environments, but won't hold up to harsh chemicals as well as 316 stainless steel.
    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.
    For Screw
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    ID,
    mm
    OD,
    mm
    Thk., mm
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    M7
    		7.422.01.8 to 2.2DIN 902125000000000000000
     
    Black-Oxide 18-8 Stainless Steel
    M7
    		7.422.01.8 to 2.2DIN 90211000000000000000
     
    Super-Corrosion-Resistant 316 Stainless Steel
    M7
    		7.422.01.8 to 2.2DIN 9021100000000000000
     
    Steel
    Image of Product. Front orientation. Washers. Oversized Washers.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    Steel—Best for dry environments since moisture will cause these washers to rust.
    For Screw
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    ID,
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    OD,
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    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    M7
    		7.422.01.8 to 2.2DIN 90212500000000000000
     
    Steel
    M7
    		7.014.01.3 to 1.7DIN 1440, ISO 87381000000000000000
     

    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.
    Nylon—The most popular plastic washers, these are strong, durable, and economical. Nylon will swell and weaken when exposed to moisture, so these washers are best for dry environments.
    Low-Friction Lubricant-Filled Nylon—Reduce friction between the washer, fastener, and mounting surface to prevent sticking when tightening and loosening.
    Moisture-Resistant Delrin® Acetal—The best plastic for damp and wet environments, these washers won't swell or lose their strength if exposed to moisture.
    Low-Friction Impact-Resistant UHMW Polyethylene—The slippery surface reduces friction between the washer, fastener, and mounting surface to prevent sticking when fastening and loosening. These washers also resist bumps and vibration without cracking or denting.
    Acid-Resistant PVC—A great choice for chemical-processing lines, these washers won't degrade when exposed to harsh acids, alkalis, and alcohols. They are also good electrical insulators.
    Chemical-Resistant Polypropylene—These versatile washers resist a broad range of chemicals, such as petroleum, degreasers, and methyl ethyl ketone (MEK). They will weaken, however, if exposed to chlorine, lacquer solvents, or nitric acid.
    Chemical-Resistant High-Temperature PTFE—The most chemical-resistant plastic washers we offer, these stand up to the widest range of harsh acids, bases, solvents, and corrosive cleaners, even at temperatures up to 500° F. Their slippery surface reduces friction between the washer, fastener, and mounting surface to prevent sticking when tightening and loosening. They are also good electrical insulators.
    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.
    Electrically Insulating Ultem PEI—Our best electrical insulators, these washers are often used to secure components in circuit-breaker housings and semiconductors.
    Temp.
    Range, ° F
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    Color
    Pkg.
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    Pkg.
    Nylon
    M7
    		7.414.01.4 to 1.8-40212DIN 125Black500000000000000
    M7
    		7.414.01.4 to 1.8-40212DIN 125Off-White50000000000000
     
    Low-Friction Lubricant-Filled Nylon
    M7
    		7.414.01.4 to 1.8Not Rated220DIN 125Gray50000000000000
     
    Moisture-Resistant Delrin® Acetal
    M7
    		7.415.01.4 to 1.8Not Rated180—White100000000000000
     
    Low-Friction Impact-Resistant UHMW Polyethylene
    M7
    		7.414.01.5 to 1.7Not Rated180—Off-White50000000000000
     
    Acid-Resistant PVC
    M7
    		7.216.00.7 to 0.9Not Rated140—Gray1000000000000000
     
    Chemical-Resistant Polypropylene
    M7
    		7.4161.4 to 1.7Not Rated150—Off-White1000000000000000
     
    Chemical-Resistant High-Temperature PTFE
    M7
    		7.414.01.4 to 1.8Not Rated500—White250000000000000
     
    High-Strength High-Temperature PEEK
    M7
    		7.514.01.4 to 1.8-20500DIN 125
    Beige
    ,
    Black
    		—0000000000000
     
    Extreme-Strength High-Temperature Carbon-Filled PEEK
    M7
    		7.514.01.4 to 1.8-20500DIN 125Black100000000000000
     
    Electrically Insulating Ultem PEI
    M7
    		7.514.01.4 to 1.8-30450DIN 125Black100000000000000
     

    Hard Fiber Washers

    Image of Product. Front orientation. Washers. Hard Fiber Washers.
    The least likely to scratch or mar delicate mounting surfaces, these washers are made of hardened cotton fiber. They are also naturally nonconductive, so they are a great choice for insulating nuts and screws to prevent unintended charges. However, fiber washers will break down faster than other washers and will need to be replaced more often.
    For Screw
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    M7
    		7.413.81.4 to 1.7DIN 125Black10000000000000000

    Self-Retaining Washers

    Image of Product. Front orientation. Contains Annotated. Washers. Self-Retaining Washers.
    Save time by assembling screws and washers in advance. The tabs on these washers grip the screw shank, so they won't slip off, even when fastening upside down or at odd angles. They take the pressure off screws and nuts to protect mounting surfaces.
    Flexible Polyethylene—Softer and more flexible than other washers, these are a good choice when your mounting surface is slightly uneven. They also withstand vibration and movement without cracking.
    Temp.
    Range, ° F
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    Flexible Polyethylene
    M7
    		0.331"0.512"0.100" to 0.112"35145Gray100000000000000000
    M7
    		0.331"0.591"0.053" to 0.065"35145Blue10000000000000000
    M7
    		0.331"0.669"0.073" to 0.085"35145Red10000000000000000
     

    Split Lock Washers

    Image of Product. Front orientation. Lock Washers. Split-Lock Washer.
    Stop nuts and screws from loosening due to mild vibration. As you tighten, the uneven ends bite into the nut or screw so it won't back out. While they're not as vibration resistant as other lock washers, they are a great fit for electrical panels, light fixtures, and other light duty assemblies. Split lock washers are not reusable, and they only work with fasteners that have right-hand threads.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these washers won't rust when exposed to moisture. However, they can't hold up to the harsh chemicals that 316 stainless steel can.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    For Screw
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    18-8 Stainless Steel
    M7
    		7.512.81.5 to 1.7DIN 127B5000000000000000
     
    Zinc-Plated Steel
    M7
    		7.512.81.5 to 1.7DIN 127B1000000000000000
     

    Tooth Lock Washers

    Grip tighter than split lock washers to prevent nuts and screws from loosening in applications with constant movement, such as conveyors. Tooth lock washers typically can't be reused because the teeth often get bent when tightened.
    External Tooth
    Image of Product. Front orientation. Lock Washers. Tooth Washer, External Tooth.
    Teeth on the outside edge bite into both the fastener and the mating surface for a stronger hold than internal-tooth lock washers. However, they may mar your material and snag on objects. Pair these washers with nuts and screws that are large enough to make contact with the teeth, such as pan, button, and binding head screws.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these washers won't rust when exposed to moisture. However, they can't hold up to the harsh chemicals that 316 stainless steel can.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    For Screw
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    ID,
    mm
    OD,
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    Thk., mm
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    M7
    		7.412.50.7 to 0.9DIN 679710000000000000000
     
    Zinc-Plated Steel
    M7
    		7.412.50.7 to 0.9DIN 6797250000000000000
     
    Internal Tooth
    Image of Product. Front orientation. Lock Washers. Tooth Washer, Internal Tooth.
    Internal teeth dig into the nut or screw to prevent it from backing out. Unlike external-tooth lock washers, these have a smooth outside edge, so they are less likely to mar your material or snag on objects. However, they don’t grip quite as well. Pair them with fasteners that have small diameters, such as fillister and cheese head screws.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these washers won't rust when exposed to moisture. However, they can't hold up to the harsh chemicals that 316 stainless steel can.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    For Screw
    Size
    ID,
    mm
    OD,
    mm
    Thk., mm
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    M7
    		7.412.50.7 to 0.9DIN 679750000000000000000
     
    Zinc-Plated Steel
    M7
    		7.412.50.7 to 0.9DIN 67971000000000000000
     

    Heavy-Vibration-Resistant Spring Lock Washers

    Image of Product. Front orientation. Lock Washers. Spring Lock Washer, Conical Washer.
    With a grip that's second only to wedge lock, these washers stop nuts and screws from wiggling loose under constant, vigorous vibration. They are ideal for engines, turbines, generators, and other heavy duty equipment. Similar to a spring, they flatten under pressure to add tension between mating surfaces. As long as the washers aren't deformed or otherwise damaged, you can reuse them indefinitely without losing locking strength. Also known as conical washers and Belleville washers.
    Stack multiple washers in the same direction to double or triple how much weight they can bear. Stack washers in opposite directions for better deflection, which means they compress further and withstand more shock and movement without loosening.
    Black-Oxide 18-8 Stainless Steel—Typically chosen for their appearance, these washers have a dark, matte coating to create a finished look. They won't rust in wet and outdoor environments, but can't hold up to harsh chemicals as well as 316 stainless steel.
    For Screw
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    Pkg.
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    Black-Oxide 18-8 Stainless Steel
    M7
    		7.214.00.50.9500000000000000
     

    Heavy-Vibration-Resistant Spring Lock Washers for Socket Head Screws

    Image of Product. Front orientation. Lock Washers. Conical Washer, For Socket Head Screws, Spring Lock Washer.
    Stop socket head screws from wiggling loose on equipment with constant, vigorous vibration, such as engines, turbines, and generators. These washers have a small diameter to fit under screws with narrow heads. Similar to a spring, they flatten under pressure to add tension between mating surfaces. As long as the washers aren't deformed or otherwise damaged, you can reuse them indefinitely without losing locking strength. Also known as conical washers and Belleville washers.
    Stack multiple washers in the same direction to double or triple how much weight they can bear. Stack washers in opposite directions for better deflection, which means they compress further and withstand more shock and movement without loosening.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these washers won't rust when exposed to moisture. However, they can't hold up to the harsh chemicals that 316 stainless steel can.
    Top-and-Bottom Serration—Adds friction for extra gripping power.
    For Screw
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    Location
    Pkg.
    Qty.
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    18-8 Stainless Steel
    M7
    		0.291"0.472"0.028"0.051"Top and Bottom5000000000000000
     

    Wave Spring Lock Washers

    Image of Product. Front orientation. Lock Washers. Wave Washer, Spring Lock Washer.
    The wavy shape flexes like a spring to keep nuts and screws secure on slightly uneven surfaces. These washers add a small amount of tension to stop fasteners from backing out due to mild vibration. While they don't hold as well as other lock washers, they do grip slightly better than curved washers. They work best in electrical panels, light fixtures, and other light duty assemblies. Since these washers hold their shape when untightened, you can reuse them a handful of times without losing strength.
    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.
    For Screw
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    No. of
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    Black-Oxide Steel
    M7
    		17.414.00.83.0DIN 137B100000000000000000
     
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