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    153 Products

    Shims

    Image of Product. Front orientation. Shims. Round, Sold Individually.
    With thickness tolerances as fine as a strand of hair, these shims precisely align, space, and level components on shafts, arbors, and machinery.
    You can stack multiple shims to achieve your exact thickness, but stacking more than four may cause them to shift. Remember, fewer shims are better, so a couple of thicker shims are more stable than a bunch of thin shims.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these shims resist rust. However, they’ll corrode or pit when exposed to salt water and chemicals.
    Super-Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these shims won't degrade when exposed to harsh weather, salt water, and most chemicals.
    Carbon Steel—Best for dry environments since moisture will cause these shims to rust.
    Stress-Resistant Spring Steel—These shims are harder and hold their shape better than carbon steel. Use them for high-stress applications, such as leveling heavy machinery. They're best for dry environments since moisture will cause them to rust.
    Aluminum—These shims are an alternative to stainless steel for rust resistance but aren't as hard so they may not retain their shape as well. One-third the weight of steel, they’re commonly used in robotics and automation.
    Brass—With a warm, polished look, these shims are often chosen for their appearance. Similar to 18-8 stainless steel, brass is corrosion resistant enough to stand up to wet environments.
    Copper—Good conductors of heat, these shims are often used when installing heat sinks. As our softest metal shims, they prevent damage to equipment and components but may not retain their shape as well as other metal shims.
    Ultra-Chemical-Resistant PTFE—The most chemical-resistant shims we offer, these stand up to the widest range of harsh acids, bases, solvents, and corrosive cleaners, even at temperatures up to 500° F. They also won't mar delicate surfaces.
    Thk.,
    mm
    Thk. Tolerance,
    mm
    ID Tolerance,
    mm
    OD Tolerance,
    mm
    Min.
    Hardness
    Color
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    4 mm ID × 8 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.05 to 0.05Rockwell B702500000000000000
     
    5 mm ID × 10 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.05 to 0.05Rockwell B70250000000000000
     
    6 mm ID × 12 mm OD
    0.5-0.064 to 0.064-0.31 to 0.29-0.11 to -0.01Rockwell B70250000000000000
     
    8 mm ID × 14 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.05 to 0.05Rockwell B70250000000000000
     
    10 mm ID × 16 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.05 to 0.05Rockwell B70500000000000000
     
    12 mm ID × 18 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.05 to 0.05Rockwell B70250000000000000
     
    14 mm ID × 20 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.05 to 0.05Rockwell B702500000000000000
     
    16 mm ID × 22 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.05 to 0.05Rockwell B702500000000000000
     
    18 mm ID × 25 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.05 to 0.05Rockwell B702500000000000000
     
    20 mm ID × 28 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.05 to 0.05Rockwell B702500000000000000
     
    22 mm ID × 30 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.05 to 0.05Rockwell B702500000000000000
     
    25 mm ID × 36 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.05 to 0.05Rockwell B702500000000000000
     
    30 mm ID × 42 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.05 to 0.05Rockwell B701000000000000000
     
    35 mm ID × 45 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.05 to 0.05Rockwell B701000000000000000
     
    40 mm ID × 50 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.05 to 0.05Rockwell B701000000000000000
     
    45 mm ID × 55 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.05 to 0.05Rockwell B702500000000000000
     
    50 mm ID × 62 mm OD
    0.5-0.064 to 0.064-0.29 to 0.31-0.07 to 0.03Rockwell B70500000000000000
     
    55 mm ID × 68 mm OD
    0.5-0.064 to 0.064-0.31 to 0.29-0.01 to 0.09Rockwell B70500000000000000
     
    60 mm ID × 75 mm OD
    0.5-0.064 to 0.064-0.31 to 0.29-0.12 to -0.02Rockwell B70500000000000000
     
    70 mm ID × 90 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.13 to -0.03Rockwell B7010000000000000
     
    Super-Corrosion-Resistant 316 Stainless Steel
     
    4 mm ID × 8 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B70ASTM A2401000000000000000
     
    5 mm ID × 10 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B70ASTM A2401000000000000000
     
    6 mm ID × 12 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.05 to 0.05Rockwell B701000000000000000
     
    8 mm ID × 14 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.05 to 0.05Rockwell B701000000000000000
     
    10 mm ID × 16 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.05 to 0.05Rockwell B701000000000000000
     
    12 mm ID × 18 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.05 to 0.05Rockwell B701000000000000000
     
    14 mm ID × 20 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.05 to 0.05Rockwell B701000000000000000
     
    16 mm ID × 22 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.05 to 0.05Rockwell B701000000000000000
     
    18 mm ID × 25 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B70ASTM A240500000000000000
     
    20 mm ID × 28 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.05 to 0.05Rockwell B70500000000000000
     
    25 mm ID × 36 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.05 to 0.05Rockwell B7050000000000000
     
    30 mm ID × 42 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.05 to 0.05Rockwell B70500000000000000
     
    Carbon Steel
     
    4 mm ID × 8 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B40100000000000000
     
    5 mm ID × 10 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B40100000000000000
     
    6 mm ID × 12 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B40100000000000000
     
    8 mm ID × 14 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B40100000000000000
     
    10 mm ID × 16 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B40100000000000000
     
    12 mm ID × 18 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B401000000000000000
     
    14 mm ID × 20 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B40100000000000000
     
    16 mm ID × 22 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B40100000000000000
     
    18 mm ID × 25 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B40100000000000000
     
    20 mm ID × 28 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B4050000000000000
     
    22 mm ID × 30 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B4025000000000000
     
    25 mm ID × 36 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B4025000000000000
     
    30 mm ID × 42 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B4025000000000000
     
    35 mm ID × 45 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B4025000000000000
     
    40 mm ID × 50 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B4025000000000000
     
    50 mm ID × 62 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B4010000000000000
     
    55 mm ID × 68 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B4010000000000000
     
    60 mm ID × 75 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B4010000000000000
     
    70 mm ID × 90 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B40100000000000000
     
    80 mm ID × 100 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B4010000000000000
     
    Stress-Resistant Spring Steel
     
    4 mm ID × 8 mm OD
    0.5-0.05 to 00.03 to 0.4-0.47 to -0.04Rockwell B85DIN 988500000000000000
     
    5 mm ID × 10 mm OD
    0.5-0.05 to 00.03 to 0.4-0.47 to -0.04Rockwell B85DIN 988500000000000000
     
    6 mm ID × 12 mm OD
    0.5-0.05 to 00.03 to 0.4-0.47 to -0.04Rockwell B85DIN 988500000000000000
     
    8 mm ID × 14 mm OD
    0.5-0.05 to 00.03 to 0.4-0.47 to -0.04Rockwell B85DIN 988500000000000000
     
    10 mm ID × 16 mm OD
    0.5-0.05 to 00.03 to 0.4-0.47 to -0.04Rockwell B85DIN 988500000000000000
     
    12 mm ID × 18 mm OD
    0.5-0.05 to 00.03 to 0.4-0.47 to -0.04Rockwell B85DIN 9885000000000000000
     
    14 mm ID × 20 mm OD
    0.5-0.05 to 00.03 to 0.4-0.47 to -0.04Rockwell B85DIN 988250000000000000
     
    16 mm ID × 22 mm OD
    0.5-0.05 to 00.03 to 0.4-0.47 to -0.04Rockwell B85DIN 988250000000000000
     
    18 mm ID × 25 mm OD
    0.5-0.05 to 00.03 to 0.4-0.47 to -0.04Rockwell B85DIN 988250000000000000
     
    20 mm ID × 28 mm OD
    0.5-0.05 to 00.03 to 0.4-0.47 to -0.04Rockwell B85DIN 988250000000000000
     
    22 mm ID × 30 mm OD
    0.5-0.05 to 00.03 to 0.4-0.47 to -0.04Rockwell B85DIN 988250000000000000
     
    25 mm ID × 36 mm OD
    0.5-0.05 to 00.03 to 0.4-0.47 to -0.04Rockwell B85DIN 9882500000000000000
     
    30 mm ID × 42 mm OD
    0.5-0.05 to 00.03 to 0.4-0.47 to -0.04Rockwell B85DIN 988100000000000000
     
    35 mm ID × 45 mm OD
    0.5-0.05 to 00.03 to 0.4-0.47 to -0.04Rockwell B85DIN 988100000000000000
     
    40 mm ID × 50 mm OD
    0.5-0.05 to 00.03 to 0.4-0.47 to -0.04Rockwell B85DIN 988100000000000000
     
    45 mm ID × 55 mm OD
    0.5-0.05 to 00.03 to 0.4-0.47 to -0.04Rockwell B85DIN 988100000000000000
     
    50 mm ID × 62 mm OD
    0.5-0.05 to 00.03 to 0.4-0.47 to -0.04Rockwell B85DIN 98850000000000000
     
    55 mm ID × 68 mm OD
    0.5-0.05 to 00.03 to 0.4-0.47 to -0.04Rockwell B85DIN 98850000000000000
     
    60 mm ID × 75 mm OD
    0.5-0.05 to 00.03 to 0.4-0.47 to -0.04Rockwell B85DIN 98850000000000000
     
    70 mm ID × 90 mm OD
    0.5-0.05 to 00.03 to 0.4-0.47 to -0.04Rockwell B85DIN 98850000000000000
     
    80 mm ID × 100 mm OD
    0.5-0.05 to 00.03 to 0.4-0.47 to -0.04Rockwell B85DIN 98810000000000000
     
    Aluminum
     
    6 mm ID × 12 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Brinell 60250000000000000
     
    10 mm ID × 16 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Brinell 60250000000000000
     
    12 mm ID × 18 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Brinell 60250000000000000
     
    16 mm ID × 22 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Brinell 60250000000000000
     
    20 mm ID × 28 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Brinell 60250000000000000
     
    25 mm ID × 36 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Brinell 60250000000000000
     
    Brass
     
    6 mm ID × 12 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B14ASTM B362500000000000000
     
    8 mm ID × 14 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B14ASTM B362500000000000000
     
    10 mm ID × 16 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B14ASTM B362500000000000000
     
    12 mm ID × 18 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B14ASTM B362500000000000000
     
    16 mm ID × 22 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B14ASTM B362500000000000000
     
    20 mm ID × 28 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B14ASTM B36100000000000000
     
    30 mm ID × 42 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B14ASTM B361000000000000000
     
    40 mm ID × 50 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell B14ASTM B3650000000000000
     
    Copper
     
    8 mm ID × 14 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell F40ASTM B1522500000000000000
     
    10 mm ID × 16 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell F40ASTM B1522500000000000000
     
    12 mm ID × 18 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell F40ASTM B1522500000000000000
     
    20 mm ID × 28 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell F40ASTM B152100000000000000
     
    25 mm ID × 36 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5Rockwell F40ASTM B1521000000000000000
     
    Ultra-Chemical-Resistant PTFE
     
    6 mm ID × 12 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5White5000000000000000
     
    12 mm ID × 18 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5White2500000000000000
     
    20 mm ID × 28 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5White1000000000000000
     
    25 mm ID × 36 mm OD
    0.5-0.064 to 0.064-0.3 to 0.3-0.5 to 0.5White1000000000000000
     

    Slotted Shims

    Image of ProductInUse. Front orientation. Shims. Precision Adjust, Slot, Sold Individually.
    Image of Product. Front orientation. Shims. Precision Adjust, Slot, Sold Individually, Tab End.
    Image of Product. Front orientation. Shims. Precision Adjust, Slot, Sold Individually, Square End.

    Tab End

    Square End

    Slip these shims around existing mounting fasteners to precisely align and level components such as pumps, compressors, and gearboxes with motors, all without disassembling them. They’re also good for leveling machines on uneven surfaces. To reduce sizing errors, these shims are either labeled with their thickness so there's no need to measure or color coded by thickness to quickly spot the right size.
    You can stack multiple shims to achieve your exact thickness, but stacking more than four may cause them to shift. Remember, fewer shims are better, so a couple of thicker shims are more stable than a bunch of thin shims.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these shims resist rust. However, they’ll corrode or pit when exposed to salt water and chemicals.
    Carbon Steel—Best for dry environments since moisture will cause these shims to rust.
    Insertion Tools—Ease shim insertion and removal, keeping your fingers clear in the process.
    Shims
    Insertion Tools
    Slot,
    mm
    Thk.,
    mm
    Thk. Tolerance,
    mm
    For Max.
    Screw Size
    Wd.
    Dp.
    Min.
    Hardness
    Identification
    Type
    Color
    End
    Shape
    Each
    Each
    18-8 Stainless Steel
     
    50 mm Lg. × 50 mm Wd. (Shim Trade Size A)
    0.5-0.032 to 0.032M15
    15.925.4Rockwell C40LabeledTab000000000000000000000000000
     
    75 mm Lg. × 75 mm Wd. (Shim Trade Size B)
    0.5-0.032 to 0.032M22
    22.338.1Rockwell C40LabeledTab000000000000000000000000
     
    100 mm Lg. × 100 mm Wd. (Shim Trade Size C)
    0.5-0.032 to 0.032M30
    31.850.8Rockwell C40LabeledTab000000000000000000000000
     
    125 mm Lg. × 125 mm Wd. (Shim Trade Size D)
    0.5-0.032 to 0.032M40
    41.384.1Rockwell C40LabeledTab0000000000000———0
     
    Carbon Steel
     
    65 mm Lg. × 25 mm Wd. (Shim Trade Size ASH105)
    0.5-0.03 to 0.03M10
    10.560.25Rockwell B90LabeledYellowSquare0000000000000———0
     

    Shims for Dies

    Image of ProductInUse. Side1 orientation. Contains Annotated. Shims. Sold Individually, Round, For Dies.
    Restore your die to its original height for clean cuts in metal stamping. Dies shorten over time from wear and sharpening, which prevents your die punch from going all the way through and often causes annoying partial punches that require stopping to clear. Place these shims under your die to adjust its height, extend its life, and prevent jams.
    You can stack multiple shims to achieve your exact thickness, but stacking more than four may cause them to shift. Remember, fewer shims are better, so a couple of thicker shims are more stable than a bunch of thin shims.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these shims resist rust. However, they’ll corrode or pit when exposed to salt water and chemicals.
    Thk.,
    mm
    Thk. Tolerance,
    mm
    OD Tolerance,
    mm
    ID,
    mm
    ID Tolerance,
    mm
    Min.
    Hardness
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    8 mm OD
    0.5-0.025 to 0.025-0.3 to 06-0.08 to 0.17Rockwell C4025000000000000000
     
    10 mm OD
    0.5-0.025 to 0.025-0.3 to 08-0.18 to 0.07Rockwell C402500000000000000
     
    16 mm OD
    0.5-0.025 to 0.025-0.31 to 012-0.35 to 0Rockwell C402500000000000000
     
    20 mm OD
    0.5-0.025 to 0.025-0.32 to 016-0.5 to 0Rockwell C402500000000000000
     

    Multislotted Shims

    Image of Product. Front orientation. Shims. Sold Individually, Multislot, 2 Slots.
    Image of Product. Front orientation. Shims. Sold Individually, Multislot, 3 Slots.

    2 Slots

    3 Slots

    Image of Product. Front orientation. Shims. Sold Individually, Multislot, 4 Slots.
    Image of Product. Front orientation. Shims. Sold Individually, Multislot, 5 Slots.

    4 Slots

    5 Slots

    Streamline the leveling of machines and positioning arms with multiple, evenly spaced mounting fasteners by using a single shim. Slip these shims around existing fasteners without unfastening them, simultaneously leveling each point. They're also known as finger shims.
    You can stack multiple shims to achieve your exact thickness, but stacking more than four may cause them to shift. Remember, fewer shims are better, so a couple of thicker shims are more stable than a bunch of thin shims.
    Carbon Steel—Best for dry environments since moisture will cause these shims to rust.
    Slot,
    mm
    Thk.,
    mm
    Thk. Tolerance,
    mm
    For Max.
    Screw Size
    Wd.
    Dp.
    Lg.,
    mm
    Wd.,
    mm
    Shim Trade
    Size
    Min.
    Hardness
    Pkg.
    Qty.
    Pkg.
    Carbon Steel
     
    2 Slots
    0.5-0.03 to 0.03M10
    10.517.82534ASH205Not Rated100000000000000
     
    3 Slots
    0.5-0.03 to 0.03M8
    914.52046ASH305NRockwell B9010000000000000
    0.5-0.03 to 0.03M10
    10.517.82548ASH305Not Rated1000000000000
     
    4 Slots
    0.5-0.03 to 0.03M8
    914.52061ASH405NRockwell B9010000000000000
    0.5-0.03 to 0.03M10
    10.517.82563ASH405Not Rated1000000000000
     
    5 Slots
    0.5-0.03 to 0.03M10
    10.517.82578ASH505Not Rated1000000000000
     

    Shim Stock

    Image of Product. Front orientation. Shim Stock. Sold Individually.
    Cut into custom shapes to create shims that suit your needs. With thickness tolerances as fine as a strand of hair, the shims will precisely align, space, and level components on dies, presses, and machinery.
    You can stack multiple shims to achieve your exact thickness, but stacking more than four may cause them to shift. Remember, fewer shims are better, so a couple of thicker shims are more stable than a bunch of thin shims.
    18-8 Stainless Steel—The choice for wet and outdoor areas because it resists rust. However, it will corrode or pit when exposed to salt water and chemicals.
    Carbon Steel—Best for dry areas since moisture will cause it to rust.
    Temper Rating—Choose half hard to create shims that you’ll need to bend or shape. Opt for full hard to make stronger shims that will maintain their shape under loads.
    Certificate
    Thk.,
    mm
    Thk. Tolerance,
    mm
    Temper
    Rating
    Type
    Form
    Specs. Met
    Form
    Each
    18-8 Stainless Steel
     
    150 mm Wide × 1,250 mm Long
    0.5-0.025 to 0.025Full HardMaterial CertificatePaperASTM A666Roll00000000000000
     
    Carbon Steel
     
    150 mm Wide × 2,500 mm Long
    0.5-0.025 to 0.025Full HardMaterial CertificatePaperASTM A109, Fed. Spec. QQ-S-698Roll0000000000000
     

    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.
    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.
    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
    Size
    ID,
    mm
    OD,
    mm
    Thk.,
    mm
    Overall
    Ht., mm
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    M2.5
    2.76.00.50.7DIN 67961000000000000000
     
    Black-Oxide 18-8 Stainless Steel
    M3
    3.28.00.50.7100000000000000
    M4
    4.210.00.50.8100000000000000
    M5
    5.210.00.50.8100000000000000
    M6
    6.212.00.50.9100000000000000
    M7
    7.214.00.50.950000000000000
     

    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.
    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.
    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.
    Super-Corrosion-Resistant Phosphor Bronze—Stronger and more wear resistant than silicon bronze, but with the same excellent corrosion resistance. These washers won't rust or deteriorate when submerged in salt water, so they're a good fit for marine environments.
    3 Wave—More points of contact than single-wave washers for a better grip.
    For Screw
    Size
    No. of
    Waves
    ID,
    mm
    OD,
    mm
    Thk.,
    mm
    Overall
    Ht., mm
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    M3
    13.28.00.51.6DIN 137B10000000000000000
    M3.5
    13.78.00.51.8DIN 137B10000000000000000
    M4
    14.39.00.52.0DIN 137B1000000000000000
    M4
    34.37.10.51.51000000000000000
    M5
    15.311.00.52.2DIN 137B1000000000000000
    M6
    16.412.00.52.6DIN 137B1000000000000000
     
    Black-Oxide Steel
    M3
    13.28.00.51.6DIN 137B1000000000000000
    M4
    14.39.00.52.0DIN 137B1000000000000000
    M5
    15.311.00.52.2DIN 137B1000000000000000
    M6
    16.412.00.52.6DIN 137B1000000000000000
     
    Super-Corrosion-Resistant Phosphor Bronze
    M3
    13.28.00.51.6DIN 137B2500000000000000
    M4
    14.39.00.52.0DIN 137B2500000000000000
    M5
    15.311.00.52.2DIN 137B100000000000000
    M6
    16.412.00.52.6DIN 137B100000000000000
     

    Curved Spring Lock Washers

    Image of Product. Front orientation. Lock Washers. Curved Washer, Spring Lock Washer.
    The curvy, spring-like shape adds a small amount of tension to prevent nuts and screws from backing out due to mild vibration. These washers also flex slightly to compensate for uneven surfaces. While more secure than a standard flat washer, these have the least amount of gripping power of all our lock washers. They are best suited for electrical panels, light fixtures, and other light duty assemblies. These washers hold their shape when untightened, so you can reuse them a handful of times without losing strength.
    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.
    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.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    DIN 128A—These washers have split ends that bite into your material surface for a tighter hold than other curved washers.
    For Screw
    Size
    ID,
    mm
    OD,
    mm
    Thk.,
    mm
    Overall
    Ht., mm
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    M2.5
    2.65.10.50.9DIN 128A10000000000000000
    M4
    4.38.00.51.6DIN 137A1000000000000000
    M5
    5.310.00.51.8DIN 137A1000000000000000
    M6
    6.411.00.52.2DIN 137A1000000000000000
    M8
    8.415.00.53.4DIN 137A1000000000000000
     
    Super-Corrosion-Resistant 316 Stainless Steel
    M4
    4.38.00.51.6DIN 137A10000000000000000
    M5
    5.310.00.51.8DIN 137A10000000000000000
    M6
    6.411.00.52.2DIN 137A10000000000000000
    M8
    8.415.00.53.4DIN 137A10000000000000000
     
    Zinc-Plated Steel
    M2.5
    2.65.10.50.9DIN 128A10000000000000000
    M4
    4.38.00.51.6DIN 137A1000000000000000
    M5
    5.310.00.51.8DIN 137A1000000000000000
    M6
    6.411.00.52.2DIN 137A1000000000000000
    M8
    8.415.00.53.4DIN 137A1000000000000000
     

    Tab Lock Washers

    Image of Product. Front orientation. Lock Washers. Tab-Lock Washer, 1 Tab.

    1 Tab

    Instead of relying on friction, these washers lock mechanically for more holding power than split and tooth lock washers. Bend the tabs with a wrench to stop both the fastener and washer from rotating. They are often used in applications with moderate vibration, such as motors, mixers, and pumps. These washers are not reusable because the tabs will weaken if you bend them repeatedly.
    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.
    1 Tab—Bend the tab down over the edge of your mounting surface, and bend the side of the washer up against the nut or screw.
    For Screw
    Size
    ID,
    mm
    OD,
    mm
    Thk.,
    mm
    No. of
    Tabs
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    M5
    5.317.00.51DIN 9350000000000000000
    M6
    6.419.00.51DIN 935000000000000000
     

    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 Glass-Filled Nylon—Stronger than plain nylon, but not quite as strong as PEEK. These washers will swell and weaken when exposed to moisture, so they are best for dry environments.
    Temp.
    Range
    For Screw
    Size
    ID,
    mm
    OD,
    mm
    Thk.,
    mm
    Min.
    Max.,
    ° F
    Color
    Pkg.
    Qty.
    Pkg.
    High-Strength Glass-Filled Nylon
    M3
    3.270.5Not Rated220Black1000000000000000
    M3
    3.270.5Not Rated220White100000000000000
     
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