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    360 Products

    Performance

    Performance

    Made-to-Order Shims

    Image of Product. Front orientation. Shims. Sold Individually, Made-to-Order.
    If you need a unique shim shape or size, we’ll precision cut it for you. 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.
    Send your dimensioned DWG, DXF, IGES, or STEP file to sales@mcmaster.com. Please leave at least 1/8" wall between shim edge and holes. Minimum hole size is 1/8". Shims should be no smaller than 1" × 1" square or 1" OD. Maximum shim dimension is the largest overall length, width, or diameter of your custom shim.
    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.
    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.
    Material Certificate—Shims include a report with a traceable lot number.
    2" × 2" Maximum
    Shim Size
    5" × 5" Maximum
    Shim Size
    7" × 7" Maximum
    Shim Size
    11" × 11" Maximum
    Shim Size
    23" × 23" Maximum
    Shim Size
    Thk.
    Thk. Tolerance
    Min.
    Hardness
    Certificate Type
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Pkg.
    Qty.
    Pkg.
    Pkg.
    Qty.
    Pkg.
    Pkg.
    Qty.
    Pkg.
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    0.001"-0.00005" to 0.00005"Rockwell C42Material CertificateASTM A2401611885N172000000411885N187000000911885N2030000000411885N2180000000111885N2340000000
    0.002"-0.0001" to 0.0001"Rockwell C42Material CertificateASTM A2401611885N17300000411885N18800000911885N204000000411885N219000000111885N235000000
    0.003"-0.00015" to 0.00015"Rockwell C42Material CertificateASTM A2401611885N17400000411885N18900000911885N20500000411885N22100000111885N23600000
    0.004"-0.0002" to 0.0002"Rockwell C42Material CertificateASTM A2401611885N17500000411885N19100000911885N20600000411885N22200000111885N23700000
    0.005"-0.00025" to 0.00025"Rockwell C42Material CertificateASTM A2401611885N17600000411885N19200000911885N207000000411885N223000000111885N238000000
    0.006"-0.0003" to 0.0003"Rockwell C42Material CertificateASTM A2401611885N17700000411885N19300000911885N208000000411885N224000000111885N239000000
    0.007"-0.00035" to 0.00035"Rockwell C42Material CertificateASTM A2401611885N17800000411885N19400000911885N209000000411885N225000000111885N241000000
    0.008"-0.0004" to 0.0004"Rockwell C42Material CertificateASTM A2401611885N17900000411885N19500000911885N211000000411885N226000000111885N242000000
    0.009"-0.00045" to 0.00045"Rockwell C42Material CertificateASTM A2401611885N18100000411885N19600000911885N212000000411885N227000000111885N243000000
    0.01"-0.0005" to 0.0005"Rockwell C42Material CertificateASTM A2401611885N18200000411885N19700000911885N213000000411885N228000000111885N244000000
    0.015"-0.00075" to 0.00075"Rockwell C42Material CertificateASTM A2401611885N18300000411885N19800000911885N214000000411885N229000000111885N245000000
    0.02"-0.001" to 0.001"Rockwell C42Material CertificateASTM A2401611885N18400000411885N19900000911885N215000000411885N231000000111885N246000000
    0.025"-0.00125" to 0.00125"Rockwell C42Material CertificateASTM A2401611885N18500000411885N20100000911885N216000000411885N232000000111885N247000000
    0.031"-0.00155" to 0.00155"Rockwell C42Material CertificateASTM A2401611885N18600000411885N20200000911885N217000000411885N233000000111885N248000000
     
    Super-Corrosion-Resistant 316 Stainless Steel
    0.001"-0.00005" to 0.00005"Not RatedMaterial CertificateASTM A240, Fed. Spec. QQ-S-7661611885N10100000411885N11600000————0————0————0
    0.002"-0.0001" to 0.0001"Not RatedMaterial CertificateASTM A240, Fed. Spec. QQ-S-7661611885N10200000411885N11700000911885N132000000411885N145000000111885N158000000
    0.003"-0.00015" to 0.00015"Not RatedMaterial CertificateASTM A240, Fed. Spec. QQ-S-7661611885N10300000411885N11800000911885N133000000411885N146000000111885N159000000
    0.004"-0.0002" to 0.0002"Not RatedMaterial CertificateASTM A240, Fed. Spec. QQ-S-7661611885N10400000411885N11900000911885N134000000411885N147000000111885N161000000
    0.005"-0.00025" to 0.00025"Not RatedMaterial CertificateASTM A240, Fed. Spec. QQ-S-7661611885N10500000411885N12100000911885N13500000411885N14800000111885N16200000
    0.006"-0.0003" to 0.0003"Not RatedMaterial CertificateASTM A240, Fed. Spec. QQ-S-7661611885N10600000411885N12200000911885N136000000411885N149000000111885N163000000
    0.007"-0.00035" to 0.00035"Not RatedMaterial CertificateASTM A240, Fed. Spec. QQ-S-7661611885N10700000411885N12300000911885N137000000411885N151000000111885N164000000
    0.008"-0.0004" to 0.0004"Not RatedMaterial CertificateASTM A240, Fed. Spec. QQ-S-7661611885N10800000411885N12400000911885N138000000411885N152000000111885N165000000
    0.009"-0.00045" to 0.00045"Not RatedMaterial CertificateASTM A240, Fed. Spec. QQ-S-7661611885N10900000411885N12500000————0————0————0
    0.01"-0.0005" to 0.0005"Not RatedMaterial CertificateASTM A240, Fed. Spec. QQ-S-7661611885N11100000411885N12600000911885N139000000411885N153000000111885N166000000
    0.015"-0.00075" to 0.00075"Not RatedMaterial CertificateASTM A240, Fed. Spec. QQ-S-7661611885N11200000411885N12700000911885N141000000411885N154000000111885N167000000
    0.02"-0.001" to 0.001"Not RatedMaterial CertificateASTM A240, Fed. Spec. QQ-S-7661611885N11300000411885N12800000911885N142000000411885N155000000111885N168000000
    0.025"-0.00125" to 0.00125"Not RatedMaterial CertificateASTM A240, Fed. Spec. QQ-S-7661611885N11400000411885N12900000911885N143000000411885N156000000111885N169000000
    0.031"-0.00155" to 0.00155"Not RatedMaterial CertificateASTM A240, Fed. Spec. QQ-S-7661611885N115000000411885N131000000911885N144000000411885N157000000111885N171000000
     
    Carbon Steel
    0.001"-0.00005" to 0.00005"Rockwell B90Material CertificateASTM A109, Fed. Spec. QQ-S-6981611885N24900000411885N26500000————0————0————0
    0.002"-0.0001" to 0.0001"Rockwell B90Material CertificateASTM A109, Fed. Spec. QQ-S-6981611885N25100000411885N26600000911885N281000000411885N295000000111885N309000000
    0.003"-0.00015" to 0.00015"Rockwell B90Material CertificateASTM A109, Fed. Spec. QQ-S-6981611885N25200000411885N26700000911885N282000000411885N296000000111885N311000000
    0.004"-0.0002" to 0.0002"Rockwell B90Material CertificateASTM A109, Fed. Spec. QQ-S-6981611885N25300000411885N26800000911885N28300000411885N29700000111885N31200000
    0.005"-0.00025" to 0.00025"Rockwell B90Material CertificateASTM A109, Fed. Spec. QQ-S-6981611885N25400000411885N26900000911885N28400000411885N29800000111885N31300000
    0.006"-0.0003" to 0.0003"Rockwell B90Material CertificateASTM A109, Fed. Spec. QQ-S-6981611885N25500000411885N27100000911885N28500000411885N29900000111885N31400000
    0.007"-0.00035" to 0.00035"Rockwell B90Material CertificateASTM A109, Fed. Spec. QQ-S-6981611885N25600000411885N27200000911885N28600000411885N30100000111885N31500000
    0.008"-0.0004" to 0.0004"Rockwell B90Material CertificateASTM A109, Fed. Spec. QQ-S-6981611885N25700000411885N27300000911885N28700000411885N30200000111885N31600000
    0.009"-0.00045" to 0.00045"Rockwell B90Material CertificateASTM A109, Fed. Spec. QQ-S-6981611885N25800000411885N27400000911885N28800000411885N30300000111885N31700000
    0.01"-0.0005" to 0.0005"Rockwell B90Material CertificateASTM A109, Fed. Spec. QQ-S-6981611885N25900000411885N27500000911885N28900000411885N30400000111885N31800000
    0.015"-0.00075" to 0.00075"Rockwell B90Material CertificateASTM A109, Fed. Spec. QQ-S-6981611885N26100000411885N27600000911885N29100000411885N30500000111885N31900000
    0.02"-0.001" to 0.001"Rockwell B90Material CertificateASTM A109, Fed. Spec. QQ-S-6981611885N26200000411885N27700000911885N29200000411885N30600000111885N32100000
    0.025"-0.00125" to 0.00125"Rockwell B90Material CertificateASTM A109, Fed. Spec. QQ-S-6981611885N26300000411885N27800000911885N29300000411885N30700000111885N32200000
    0.031"-0.00155" to 0.00155"Rockwell B90Material CertificateASTM A109, Fed. Spec. QQ-S-6981611885N26400000411885N27900000911885N29400000411885N30800000111885N32300000
     
    Brass
    0.001"-0.00005" to 0.00005"Rockwell B60Material CertificateASTM B36, Fed. Spec. QQ-B-6131611885N32400000411885N33400000————0————0————0
    0.002"-0.0001" to 0.0001"Rockwell B60Material CertificateASTM B36, Fed. Spec. QQ-B-6131611885N32500000411885N33500000911885N344000000411885N352000000111885N359000000
    0.003"-0.00015" to 0.00015"Rockwell B60Material CertificateASTM B36, Fed. Spec. QQ-B-6131611885N32600000411885N33600000911885N345000000411885N353000000111885N361000000
    0.004"-0.0002" to 0.0002"Rockwell B60Material CertificateASTM B36, Fed. Spec. QQ-B-6131611885N32700000411885N33700000————0————0————0
    0.005"-0.00025" to 0.00025"Rockwell B60Material CertificateASTM B36, Fed. Spec. QQ-B-6131611885N32800000411885N33800000911885N346000000411885N354000000111885N362000000
    0.01"-0.0005" to 0.0005"Rockwell B60Material CertificateASTM B36, Fed. Spec. QQ-B-6131611885N32900000411885N33900000911885N347000000411885N355000000111885N363000000
    0.02"-0.001" to 0.001"Rockwell B60Material CertificateASTM B36, Fed. Spec. QQ-B-6131611885N33100000411885N34100000911885N348000000411885N356000000111885N364000000
    0.025"-0.00125" to 0.00125"Rockwell B60Material CertificateASTM B36, Fed. Spec. QQ-B-6131611885N33200000411885N34200000911885N349000000411885N357000000111885N365000000
    0.031"-0.00155" to 0.00155"Rockwell B60Material CertificateASTM B36, Fed. Spec. QQ-B-6131611885N33300000411885N34300000911885N351000000411885N358000000111885N366000000
     

    Peel-Away Multilayer Made-to-Order Shims

    Image of Product. Front orientation. Shims. Multilayer, Sold Individually, Made-to-Order, Peel Away.
    If you need a unique peel-away shim shape or size, we’ll precision cut it for you. Use these shims to fine-tune thickness without worrying about stacking multiple shims. They're made of metal layers bonded with adhesive—peel off the layers with a utility knife until you reach your desired thickness. To make peeling easier, warm the shims to soften the adhesive. With thickness tolerances as fine as a strand of hair, all of these shims precisely align, space, and level components on shafts, arbors, and machinery.
    Send your dimensioned DWG, DXF, IGES, or STEP file to sales@mcmaster.com. Please leave at least 1/8" wall between shim edge and holes. Minimum hole size is 1/4". Shims should be no smaller than 1" × 1" square or 1" OD. Maximum shim dimension is the largest overall length, width, or diameter of your custom shim.
    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.
    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.
    Material Certificate—Shims include a report with a traceable lot number.
    2" × 2" Maximum
    Shim Size
    5" × 5" Maximum
    Shim Size
    7" × 7" Maximum
    Shim Size
    11" × 11" Maximum
    Shim Size
    23" × 23" Maximum
    Shim Size
    Thk.
    Thk. Tolerance
    No. of
    Layers
    Layer
    Thk.
    Min.
    Hardness
    Certificate Type
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Pkg.
    Qty.
    Pkg.
    Pkg.
    Qty.
    Pkg.
    Pkg.
    Qty.
    Pkg.
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    0.008"-0.0004" to 0.0004"40.002"Rockwell B80Material CertificateASTM A2401611885N3670000000411885N3740000000911885N3810000000411885N3870000000111885N3940000000
    0.016"-0.0008" to 0.0008"80.002"Rockwell B80Material CertificateASTM A2401611885N368000000411885N375000000911885N382000000411885N388000000111885N395000000
    0.032"-0.0016" to 0.0016"160.002"Rockwell B80Material CertificateASTM A2401611885N369000000411885N376000000911885N383000000411885N389000000111885N396000000
    0.048"-0.0024" to 0.0024"240.002"Rockwell B80Material CertificateASTM A2401611885N371000000411885N377000000911885N384000000411885N391000000111885N397000000
    0.062"-0.0031" to 0.0031"320.002"Rockwell B80Material CertificateASTM A2401611885N372000000411885N378000000911885N385000000411885N392000000111885N398000000
    0.124"-0.0062" to 0.0062"620.002"Rockwell B80Material CertificateASTM A2401611885N373000000411885N379000000911885N38600000000411885N39300000000111885N39900000000
     
    Carbon Steel
    0.008"-0.0004" to 0.0004"40.002"Rockwell B54Material CertificateFed. Spec. QQ-S-6981611885N40100000411885N40700000911885N414000000411885N421000000111885N427000000
    0.016"-0.0008" to 0.0008"80.002"Rockwell B54Material CertificateFed. Spec. QQ-S-6981611885N40200000411885N40800000911885N415000000411885N422000000111885N428000000
    0.032"-0.0016" to 0.0016"160.002"Rockwell B54Material CertificateFed. Spec. QQ-S-6981611885N403000000411885N409000000911885N416000000411885N423000000111885N429000000
    0.048"-0.0024" to 0.0024"240.002"Rockwell B54Material CertificateFed. Spec. QQ-S-6981611885N404000000411885N411000000911885N417000000411885N424000000111885N431000000
    0.062"-0.0031" to 0.0031"320.002"Rockwell B54Material CertificateFed. Spec. QQ-S-6981611885N405000000411885N412000000911885N418000000411885N425000000111885N432000000
    0.124"-0.0062" to 0.0062"620.002"Rockwell B54Material CertificateFed. Spec. QQ-S-6981611885N406000000411885N413000000911885N419000000411885N426000000111885N433000000
     
    Aluminum
    0.008"-0.0004" to 0.0004"40.002"Not RatedMaterial CertificateASTM B209, SAE AMS-DTL-224991611885N43400000411885N44100000911885N447000000411885N454000000111885N461000000
    0.016"-0.0008" to 0.0008"80.002"Not RatedMaterial CertificateASTM B209, SAE AMS-DTL-224991611885N43500000411885N44200000911885N448000000411885N455000000111885N462000000
    0.032"-0.0016" to 0.0016"160.002"Not RatedMaterial CertificateASTM B209, SAE AMS-DTL-224991611885N43600000411885N44300000911885N449000000411885N456000000111885N463000000
    0.048"-0.0024" to 0.0024"240.002"Not RatedMaterial CertificateASTM B209, SAE AMS-DTL-224991611885N43700000411885N44400000911885N451000000411885N457000000111885N464000000
    0.062"-0.0031" to 0.0031"320.002"Not RatedMaterial CertificateASTM B209, SAE AMS-DTL-224991611885N43800000411885N44500000911885N452000000411885N458000000111885N465000000
    0.124"-0.0062" to 0.0062"620.002"Not RatedMaterial CertificateASTM B209, SAE AMS-DTL-224991611885N439000000411885N446000000911885N453000000411885N459000000111885N466000000
     
    Brass
    0.008"-0.0004" to 0.0004"40.002"Not RatedMaterial CertificateASTM B361611885N467000000411885N474000000911885N481000000411885N487000000111885N494000000
    0.016"-0.0008" to 0.0008"80.002"Not RatedMaterial CertificateASTM B361611885N468000000411885N475000000911885N482000000411885N488000000111885N495000000
    0.032"-0.0016" to 0.0016"160.002"Not RatedMaterial CertificateASTM B361611885N469000000411885N476000000911885N483000000411885N489000000111885N496000000
    0.048"-0.0024" to 0.0024"240.002"Not RatedMaterial CertificateASTM B361611885N471000000411885N477000000911885N484000000411885N491000000111885N497000000
    0.062"-0.0031" to 0.0031"320.002"Not RatedMaterial CertificateASTM B361611885N472000000411885N478000000911885N485000000411885N492000000111885N498000000
    0.124"-0.0062" to 0.0062"620.002"Not RatedMaterial CertificateASTM B361611885N473000000411885N479000000911885N48600000000411885N49300000000111885N49900000000
     
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