McMaster-Carr logo
    Filter by
    System of Measurement
    Thickness
    Shape
    Width
    Attribute Image
    Length
    Attribute Image
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Industrial Info Compare
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    DFARS Specialty Metals
    Industrial Info Compare
    Minimum Hardness
    Shaft Type
    Sold As
    Specifications Met
    Form
    Backing Type
    Layer Thickness
    Temper Rating
    Number of Layers
    Construction
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    Help me decide (beta)
    11 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.
    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.
    Thk.
    Thk. Tolerance
    ID
    Tolerance
    OD Tolerance
    Min.
    Hardness
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Copper
     
    1/4" ID × 3/8" OD
    0.021"-0.002" to 0.002"0" to 0.011"-0.002" to 0.002"Not RatedASTM B1521094397A545000000
     
    3/8" ID × 5/8" OD
    0.021"-0.002" to 0.002"0" to 0.011"-0.002" to 0.002"Not RatedASTM B1521094397A54800000
     
    1/2" ID × 3/4" OD
    0.021"-0.002" to 0.002"0" to 0.011"-0.002" to 0.002"Not RatedASTM B1521094397A55000000
     
    5/8" ID × 1" OD
    0.021"-0.002" to 0.002"0" to 0.011"-0.002" to 0.002"Not RatedASTM B1521094397A55200000
     
    3/4" ID × 1 1/8" OD
    0.021"-0.002" to 0.002"0" to 0.011"-0.002" to 0.002"Not RatedASTM B152594397A55400000
     
    1" ID × 1 1/2" OD
    0.021"-0.002" to 0.002"0" to 0.011"-0.002" to 0.002"Not RatedASTM B152594397A55800000
     

    Peel-Away Multilayer Shim Stock

    Image of ProductInUse. Front orientation. Shim Stock. Peel Away, Sold Individually, Multilayer.
    Fine-tune thickness without worrying about stacking multiple shims. Cut the shim stock into custom shapes that suit your needs. It's made of layers of material bonded with adhesive—peel off the layers with a utility knife until you reach your desired thickness. To make peeling easier, warm the created shims to soften the adhesive. With thickness tolerances as fine as a strand of hair, the shims will precisely align, space, and level components on dies, presses, and machinery.
    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.
    Aluminum—An alternative to stainless steel for rust resistance but less hard so it may not retain its shape. One-third the weight of steel, it's often used in robotics and automation.
    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.
    Thk.
    Thk. Tolerance
    No. of
    Layers
    Layer
    Thk.
    Temper
    Rating
    Specs. Met
    Form
    Each
    18-8 Stainless Steel
     
    12" Wide × 12" Long
    0.021"-0.001" to 0.002"70.003"—SAE AMS-DTL-22499Sheet9718K52000000
     
    20" Wide × 24" Long
    0.021"-0.001" to 0.002"70.003"—SAE AMS-DTL-22499Sheet9718K23000000
     
    Carbon Steel
     
    12" Wide × 12" Long
    0.021"-0.001" to 0.002"70.003"—SAE AMS-DTL-22499, Fed. Spec. QQ-S-698Sheet9720K5100000
     
    20" Wide × 24" Long
    0.021"-0.001" to 0.002"70.003"—SAE AMS-DTL-22499, Fed. Spec. QQ-S-698Sheet9720K3200000
     
    Aluminum
     
    12" Wide × 12" Long
    0.021"-0.001" to 0.002"70.003"Extra HardSAE AMS-DTL-22499Sheet9574K6500000
     
    back to top