McMaster-Carr logo
    Filter by
    System of Measurement
    Backing Type
    Texture
    Sold As
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    DFARS Specialty Metals
    Military Specification
    For Use Outdoors
    Certification
    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)
    135 Products

    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.
    Ultra-Chemical-Resistant PTFE—The most chemical-resistant shim stock we offer, it stands up to the widest range of harsh acids, bases, solvents, and corrosive cleaners, even at temperatures up to 500° F. It also won't mar delicate surfaces.
    Plastic—Softer than metal, it won't mar delicate surfaces and it will never rust.
    Thk.
    Thk. Tolerance
    Color
    Specs. Met
    Form
    Each
    Ultra-Chemical-Resistant PTFE
     
    5" Wide × 20" Long
    0.002"-0.0002" to 0.0002"WhiteASTM D3308, MIL-P-22241Roll1192N50800000
    0.005"-0.0005" to 0.0005"WhiteASTM D3308, MIL-P-22241Roll1192N50900000
    0.01"-0.001" to 0.001"WhiteASTM D3308, MIL-P-22241Roll1192N51100000
    0.015"-0.0015" to 0.0015"WhiteASTM D3308, MIL-P-22241Roll1192N51200000
    0.02"-0.002" to 0.002"WhiteASTM D3308, MIL-P-22241Roll1192N51300000
     
    6" Wide × 25" Long
    0.005"-0.0005" to 0.0005"WhiteASTM D3308, MIL-P-22241Roll1192N51400000
    0.01"-0.001" to 0.001"WhiteASTM D3308, MIL-P-22241Roll1192N51500000
    0.015"-0.0015" to 0.0015"WhiteASTM D3308, MIL-P-22241Roll1192N51600000
    0.02"-0.002" to 0.002"WhiteASTM D3308, MIL-P-22241Roll1192N51700000
     
    6" Wide × 50" Long
    0.001"-0.0001" to 0.0001"WhiteASTM D3308, MIL-P-22241Roll1192N5010000
    0.002"-0.0002" to 0.0002"WhiteASTM D3308, MIL-P-22241Roll1192N50200000
    0.003"-0.0003" to 0.0003"WhiteASTM D3308, MIL-P-22241Roll1192N50300000
    0.004"-0.0004" to 0.0004"WhiteASTM D3308, MIL-P-22241Roll1192N51800000
    0.005"-0.0005" to 0.0005"WhiteASTM D3308, MIL-P-22241Roll1192N50400000
    0.008"-0.0008" to 0.0008"WhiteASTM D3308, MIL-P-22241Roll1192N51900000
    0.01"-0.001" to 0.001"WhiteASTM D3308, MIL-P-22241Roll1192N50500000
    0.015"-0.0015" to 0.0015"WhiteASTM D3308, MIL-P-22241Roll1192N50600000
    0.02"-0.002" to 0.002"WhiteASTM D3308, MIL-P-22241Roll1192N50700000
    0.025"-0.0025" to 0.0025"WhiteASTM D3308, MIL-P-22241Roll1192N52100000
    0.03"-0.003" to 0.003"WhiteASTM D3308, MIL-P-22241Roll1192N52200000
    0.04"-0.004" to 0.004"WhiteASTM D3308, MIL-P-22241Roll1192N523000000
     
    6" Wide × 100" Long
    0.001"-0.0001" to 0.0001"WhiteASTM D3308, MIL-P-22241Roll1192N52400000
    0.002"-0.0002" to 0.0002"WhiteASTM D3308, MIL-P-22241Roll1192N52500000
    0.003"-0.0003" to 0.0003"WhiteASTM D3308, MIL-P-22241Roll1192N52600000
    0.005"-0.0005" to 0.0005"WhiteASTM D3308, MIL-P-22241Roll1192N52700000
    0.01"-0.001" to 0.001"WhiteASTM D3308, MIL-P-22241Roll1192N52800000
    0.015"-0.0015" to 0.0015"WhiteASTM D3308, MIL-P-22241Roll1192N52900000
    0.02"-0.002" to 0.002"WhiteASTM D3308, MIL-P-22241Roll1192N531000000
     
    8" Wide × 12" Long
    0.001"-0.0001" to 0.0001"WhiteASTM D3308, MIL-P-22241Sheet1192N110000
    0.002"-0.0002" to 0.0002"WhiteASTM D3308, MIL-P-22241Sheet1192N120000
    0.003"-0.0003" to 0.0003"WhiteASTM D3308, MIL-P-22241Sheet1192N130000
    0.004"-0.0004" to 0.0004"WhiteASTM D3308, MIL-P-22241Sheet1192N5320000
    0.005"-0.0005" to 0.0005"WhiteASTM D3308, MIL-P-22241Sheet1192N1400000
    0.006"-0.0006" to 0.0006"WhiteASTM D3308, MIL-P-22241Sheet1192N53300000
    0.007"-0.0007" to 0.0007"WhiteASTM D3308, MIL-P-22241Sheet1192N53400000
    0.008"-0.0008" to 0.0008"WhiteASTM D3308, MIL-P-22241Sheet1192N53500000
    0.01"-0.001" to 0.001"WhiteASTM D3308, MIL-P-22241Sheet1192N1500000
    0.012"-0.0012" to 0.0012"WhiteASTM D3308, MIL-P-22241Sheet1192N53600000
    0.015"-0.0015" to 0.0015"WhiteASTM D3308, MIL-P-22241Sheet1192N1600000
    0.02"-0.002" to 0.002"WhiteASTM D3308, MIL-P-22241Sheet1192N1700000
    0.025"-0.0025" to 0.0025"WhiteASTM D3308, MIL-P-22241Sheet1192N53700000
    0.03"-0.003" to 0.003"WhiteASTM D3308, MIL-P-22241Sheet1192N1800000
    0.031"-0.0031" to 0.0031"WhiteASTM D3308, MIL-P-22241Sheet1192N53800000
    0.04"-0.004" to 0.004"WhiteASTM D3308, MIL-P-22241Sheet1192N1900000
    0.06"-0.006" to 0.006"WhiteASTM D3308, MIL-P-22241Sheet1192N200000
    0.093"-0.009" to 0.009"WhiteASTM D3308, MIL-P-22241Sheet1192N2100000
    0.125"-0.0125" to 0.0125"WhiteASTM D3308, MIL-P-22241Sheet1192N2200000
     
    12" Wide × 24" Long
    0.001"-0.0001" to 0.0001"WhiteASTM D3308, MIL-P-22241Roll1192N230000
    0.002"-0.0002" to 0.0002"WhiteASTM D3308, MIL-P-22241Roll1192N2400000
    0.003"-0.0003" to 0.0003"WhiteASTM D3308, MIL-P-22241Roll1192N2500000
    0.005"-0.0005" to 0.0005"WhiteASTM D3308, MIL-P-22241Roll1192N2600000
    0.01"-0.001" to 0.001"WhiteASTM D3308, MIL-P-22241Roll1192N2700000
    0.015"-0.0015" to 0.0015"WhiteASTM D3308, MIL-P-22241Roll1192N2800000
    0.02"-0.002" to 0.002"WhiteASTM D3308, MIL-P-22241Roll1192N2900000
    0.03"-0.003" to 0.003"WhiteASTM D3308, MIL-P-22241Roll1192N300000
    0.04"-0.004" to 0.004"WhiteASTM D3308, MIL-P-22241Roll1192N31000000
    0.06"-0.006" to 0.006"WhiteASTM D3308, MIL-P-22241Roll1192N32000000
    0.093"-0.009" to 0.009"WhiteASTM D3308, MIL-P-22241Roll1192N33000000
    0.125"-0.0125" to 0.0125"WhiteASTM D3308, MIL-P-22241Roll1192N34000000
     
    20" Wide × 50" Long
    0.001"-0.0001" to 0.0001"WhiteASTM D3308, MIL-P-22241Roll1192N3500000
    0.002"-0.0002" to 0.0002"WhiteASTM D3308, MIL-P-22241Roll1192N3600000
    0.003"-0.0003" to 0.0003"WhiteASTM D3308, MIL-P-22241Roll1192N3700000
    0.005"-0.0005" to 0.0005"WhiteASTM D3308, MIL-P-22241Roll1192N3800000
    0.01"-0.001" to 0.001"WhiteASTM D3308, MIL-P-22241Roll1192N39000000
    0.015"-0.0015" to 0.0015"WhiteASTM D3308, MIL-P-22241Roll1192N4000000
    0.02"-0.002" to 0.002"WhiteASTM D3308, MIL-P-22241Roll1192N41000000
    0.03"-0.003" to 0.003"WhiteASTM D3308, MIL-P-22241Roll1192N42000000
    0.04"-0.004" to 0.004"WhiteASTM D3308, MIL-P-22241Roll1192N43000000
    0.06"-0.006" to 0.006"WhiteASTM D3308, MIL-P-22241Roll1192N44000000
    0.093"-0.009" to 0.009"WhiteASTM D3308, MIL-P-22241Roll1192N45000000
    0.125"-0.0125" to 0.0125"WhiteASTM D3308, MIL-P-22241Roll1192N46000000
     
    Plastic
     
    5" Wide × 20" Long
    0.015"-0.0015" to 0.0015"Pink—Sheet9513K220000
    0.02"-0.002" to 0.002"Yellow—Sheet9513K230000
    0.025"-0.0025" to 0.0025"White—Sheet9513K240000
    0.03"-0.003" to 0.003"Coral—Sheet9513K250000
    0.04"-0.004" to 0.004"Clear—Sheet9513K810000
    0.05"-0.005" to 0.005"Clear—Sheet9513K820000
    0.06"-0.006" to 0.006"Clear—Sheet9513K830000
     
    10" Wide × 20" Long
    0.015"-0.0015" to 0.0015"Pink—Sheet9513K370000
    0.02"-0.002" to 0.002"Yellow—Sheet9513K380000
    0.025"-0.0025" to 0.0025"White—Sheet9513K3900000
    0.03"-0.003" to 0.003"Coral—Sheet9513K4100000
    0.04"-0.004" to 0.004"Clear—Sheet9513K8600000
    0.05"-0.005" to 0.005"Clear—Sheet9513K8700000
    0.06"-0.006" to 0.006"Clear—Sheet9513K8800000
     
    12" Wide × 24" Long
    0.015"-0.0015" to 0.0015"Pink—Sheet9513K12200000
    0.02"-0.002" to 0.002"Yellow—Sheet9513K12300000
    0.025"-0.0025" to 0.0025"White—Sheet9513K12400000
    0.03"-0.003" to 0.003"Coral—Sheet9513K12500000
    0.04"-0.004" to 0.004"Clear—Sheet9513K12600000
    0.05"-0.005" to 0.005"Clear—Sheet9513K12700000
    0.06"-0.006" to 0.006"Clear—Sheet9513K12800000
     
    20" Wide × 20" Long
    0.015"-0.0015" to 0.0015"Pink—Sheet9513K5600000
    0.02"-0.002" to 0.002"Yellow—Sheet9513K5700000
    0.025"-0.0025" to 0.0025"White—Sheet9513K5800000
    0.03"-0.003" to 0.003"Coral—Sheet9513K5900000
    0.04"-0.004" to 0.004"Clear—Sheet9513K9100000
    0.05"-0.005" to 0.005"Clear—Sheet9513K9200000
    0.06"-0.006" to 0.006"Clear—Sheet9513K9300000
     
    20" Wide × 50" Long
    0.015"-0.0015" to 0.0015"Pink—Sheet9513K15300000
    0.015"-0.0015" to 0.0015"Pink—Roll9513K7200000
    0.02"-0.002" to 0.002"Yellow—Sheet9513K15400000
    0.02"-0.002" to 0.002"Yellow—Roll9513K7300000
    0.025"-0.0025" to 0.0025"White—Sheet9513K15500000
    0.025"-0.0025" to 0.0025"White—Roll9513K7400000
    0.03"-0.003" to 0.003"Coral—Sheet9513K15600000
    0.03"-0.003" to 0.003"Coral—Roll9513K7500000
    0.04"-0.004" to 0.004"Clear—Sheet9513K15700000
    0.05"-0.005" to 0.005"Clear—Sheet9513K15800000
    0.06"-0.006" to 0.006"Clear—Sheet9513K15900000
     

    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.
    Polyimide—Originally designed for military aircraft, it’s used in everything from aerospace to electronics where weight, electrical insulation, and precision are vital.
    Certificate
    Thk.
    Thk. Tolerance
    No. of
    Layers
    Layer
    Thk.
    Specs. Met
    Form
    Type
    Form
    Each
    Polyimide
     
    12" Wide × 12" Long
    0.008"-0.0005" to 0.001"20.002"ASTM D5213, SAE AMS-DTL-22499SheetMaterial Certificate
    		Paper
    		3126N110000000
    0.01"-0.001" to 0.0015"50.002"ASTM D5213, SAE AMS-DTL-22499SheetMaterial Certificate
    		Paper
    		3126N1200000
    0.016"-0.001" to 0.0015"80.002"ASTM D5213, SAE AMS-DTL-22499SheetMaterial Certificate
    		Paper
    		3126N13000000
    0.02"-0.001" to 0.002"100.002"ASTM D5213, SAE AMS-DTL-22499SheetMaterial Certificate
    		Paper
    		3126N14000000
    0.032"-0.002" to 0.003"160.002"ASTM D5213, SAE AMS-DTL-22499SheetMaterial Certificate
    		Paper
    		3126N15000000
    0.048"-0.002" to 0.005"230.002"ASTM D5213, SAE AMS-DTL-22499SheetMaterial Certificate
    		Paper
    		3126N16000000
    0.062"-0.002" to 0.006"300.002"ASTM D5213, SAE AMS-DTL-22499SheetMaterial Certificate
    		Paper
    		3126N17000000
    0.094"-0.003" to 0.009"460.002"ASTM D5213, SAE AMS-DTL-22499SheetMaterial Certificate
    		Paper
    		3126N18000000
    0.124"-0.003" to 0.012"610.002"ASTM D5213, SAE AMS-DTL-22499SheetMaterial Certificate
    		Paper
    		3126N19000000
     

    Flexible Aramid Honeycomb Cores

    Image of Product. Front orientation. Aramid. Flexible Aramid Honeycomb Cores.
    As a strong, lightweight, and buoyant alternative to solid panels, these aramid honeycomb cores are used to make interior wall panels and floor boards in marine, structural, and industrial applications. Compared to aluminum honeycomb cores, they're lightweight and more flexible, so you'll often find them lining boats and high-speed cars. However, they’re not as strong as aluminum cores. Aramid cores also resist flames, self-extinguish without melting or dripping, and are thermal and electrical insulators. Aramid is commonly known as Nomex.
    Thk.
    Thk. Tolerance
    Honeycomb
    Cell Size
    Compressive
    Strength, psi
    Color
    Temp. Range,
    ° F
    Yield
    Strength
    For Use
    Outdoors
    12" ×
    12"
    24" ×
    24"
    0.085"-0.006" to 0.006"0.125"300Orange-100 to 350Not RatedNo7733N111000000000000
    0.21"-0.006" to 0.006"0.125"300Orange-100 to 350Not RatedNo7733N120000000000
    0.335"-0.006" to 0.006"0.125"300Orange-100 to 350Not RatedNo7733N1300000000000
    0.46"-0.006" to 0.006"0.125"300Orange-100 to 350Not RatedNo7733N1400000000000
     

    Breakaway Rectangular Shims

    Image of Product. Front orientation. Shims. Sold Individually, Rectangle, Breakaway.
    Make size adjustments easy with these scored shims—just break off pieces for a custom fit around fasteners or corners. Designed to fill wide gaps, they’re best for aligning cabinets, doors, and windows. All are made of plastic to resist moisture and prevent rot.
    Pkg.
    Thk.
    Thk. Tolerance
    Score
    Interval
    Color
    Material
    Specs.
    Met
    Pkg.
    Qty.
    1-4
    5-Up
    5" Lg. × 5" Wd.
    0.375"-0.03" to 0.03"1" × 1"BlackABS
    		ASTM D785595015K46000000000000
     
    6" Lg. × 6" Wd.
    0.0625"-0.032" to 0.032"2" × 6"BlackPolystyreneASTM D638895015K500000000
    0.125"-0.01" to 0.01"2" × 6"BlackABS
    		ASTM D638895015K6000000000
    0.25"-0.012" to 0.012"2" × 6"BlackABS
    		ASTM D638895015K70000000000
     
    10" Lg. × 10" Wd.
    0.5"-0.03" to 0.03"1" × 1"BlackABS
    		ASTM D785195015K450000000000
     

    Rectangular Shims

    Image of Product. Front orientation. Shims. Rectangle, Sold Individually.
    Sized to fill wide gaps, use these shims straight out of the box or cut to your exact needs with a utility knife to align cabinets, doors, and windows. Each shim is color coded by thickness to quickly spot and grab the right size, saving time and reducing sizing errors. All are made of plastic to resist moisture and prevent rot. Their textured surface keeps them from sliding apart when stacked.
    Thk.
    Thk. Tolerance
    Color
    Material
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    6" Lg. × 4" Wd.
    0.0625"-0.03" to 0.03"YellowPolystyreneASTM D7851095015K41000000
    0.125"-0.03" to 0.03"RedABS
    		ASTM D785595015K420000
    0.25"-0.03" to 0.03"BlackABS
    		ASTM D785595015K4300000
    0.4375"0" to 0.03"BrownABS
    		ASTM D785195015K480000
     

    Composite Fiber Aramid Honeycomb Panels

    Image of Product. Front orientation. Aramid. Fiberglass Face.

    Fiberglass Face

    With an aramid honeycomb core sandwiched between carbon fiber or fiberglass for rigidity, these panels are strong, but lightweight, and won’t conduct heat. Often used as wall panels in structural and insulating applications, they’re a lightweight alternative to solid composite and aluminum honeycomb panels.
    Fiberglass Face—Fiberglass-faced panels are often used around electrical components because they are good electrical insulators. They resist cracks from bumps and hits better than carbon-fiber-faced panels, but are not as strong or lightweight.
    12" × 12"
    Thk.
    Thk. Tolerance
    Honeycomb
    Cell Size
    Face
    Color
    Temp. Range,
    ° F
    Yield
    Strength
    For Use
    Outdoors
    Each
    Fiberglass Face
    1/8"-0.03" to 0.03"0.125"Black-100 to 250Not RatedNo6175N1160000000
    1/4"-0.03" to 0.03"0.125"Black-100 to 250Not RatedNo6175N111000000
    1/2"-0.06" to 0.06"0.125"Black-100 to 250Not RatedNo6175N122000000
     
    back to top