McMaster-Carr logo
    Filter by
    For Maximum Thread Diameter
    Food Industry Standard
    Industrial Info Compare
    Military Specification
    For Use Outdoors
    Cure Type
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    DFARS Specialty Metals
    Locking Strength
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    73 Products

    High-Density Thread Sealant Tape

    Image of Product. Front orientation. Thread Sealants. High-Density Thread Sealant Tape.
    This tape has a higher density than standard tape for a better seal between threads. Made of PTFE, it has a slippery surface that keeps threads from binding to make parts easy to assemble.
    Max.
    Pressure, psi
    Each
    Wd.
    Lg.,
    yd.
    Density,
    g/cm³
    For
    Fluids
    For
    Gases
    Temp. Range,
    ° F
    For Max.
    Thread Dia.
    Food Industry Std.
    Specs. Met
    Certification
    Mil. Spec.
    Color
    1-11
    12-Up
    PTFE
     
    0.0032" Thick
    1/4"141.210,00010,000-450 to 5501/2"Fed. Spec. A-A-58092 Type IIC-UL Listed
    Mil. Spec.
    UL Listed
    MIL-T-27730Gray7346A110000000000
    1/4"141.210,00010,000-450 to 5501/2"FDA Compliant 21 CFR 177.1550
    Fed. Spec. A-A-58092 Type IIC-UL Listed
    Mil. Spec.
    UL Listed
    MIL-T-27730White6802K2200000000
    3/8"141.210,00010,000-450 to 5503/4"Fed. Spec. A-A-58092 Type IIC-UL Listed
    Mil. Spec.
    UL Listed
    MIL-T-27730Gray7346A1600000000
    3/8"141.210,00010,000-450 to 5503/4"FDA Compliant 21 CFR 177.1550
    Fed. Spec. A-A-58092 Type IIC-UL Listed
    Mil. Spec.
    UL Listed
    MIL-T-27730White6802K1900000000
    1/2"141.210,00010,000-450 to 5501"Fed. Spec. A-A-58092 Type IIC-UL Listed
    Mil. Spec.
    UL Listed
    MIL-T-27730Gray7346A1200000000
    1/2"141.210,00010,000-450 to 5501"FDA Compliant 21 CFR 177.1550
    Fed. Spec. A-A-58092 Type IIC-UL Listed
    Mil. Spec.
    UL Listed
    MIL-T-27730White6802K3300000000
    3/4"141.210,00010,000-450 to 5501 1/2"Fed. Spec. A-A-58092 Type IIC-UL Listed
    Mil. Spec.
    UL Listed
    MIL-T-27730Gray7346A13000000000
    3/4"141.210,00010,000-450 to 5501 1/2"FDA Compliant 21 CFR 177.1550
    Fed. Spec. A-A-58092 Type IIC-UL Listed
    Mil. Spec.
    UL Listed
    MIL-T-27730White6802K4400000000
    1"141.210,00010,000-450 to 5502"Fed. Spec. A-A-58092 Type IIC-UL Listed
    Mil. Spec.
    UL Listed
    MIL-T-27730Gray7346A140000000000
    1"141.210,00010,000-450 to 5502"FDA Compliant 21 CFR 177.1550
    Fed. Spec. A-A-58092 Type IIC-UL Listed
    Mil. Spec.
    UL Listed
    MIL-T-27730White6802K550000000000
    1 1/2"141.210,00010,000-450 to 5503"Fed. Spec. A-A-58092 Type IIC-UL Listed
    Mil. Spec.
    UL Listed
    MIL-T-27730Gray7346A150000000000
    1 1/2"141.210,00010,000-450 to 5503"FDA Compliant 21 CFR 177.1550
    Fed. Spec. A-A-58092 Type IIC-UL Listed
    Mil. Spec.
    UL Listed
    MIL-T-27730White6802K660000000000
    2"141.210,00010,000-450 to 5504"FDA Compliant 21 CFR 177.1550
    Fed. Spec. A-A-58092 Type IIC-UL Listed
    Mil. Spec.
    UL Listed
    MIL-T-27730White6802K770000000000
     
    0.0035" Thick
    1/4"141.910,00010,800-450 to 5506"FDA Compliant 21 CFR 175.105
    FDA Compliant 21 CFR 177.2600
    Fed. Spec. A-A-58092 Type IIMil. Spec.
    UL Listed
    MIL-T-27730White6802K81000000000
    3/8"141.910,00010,800-450 to 5506"FDA Compliant 21 CFR 175.105
    FDA Compliant 21 CFR 177.2600
    Fed. Spec. A-A-58092 Type IIMil. Spec.
    UL Listed
    MIL-T-27730White6802K820000000000
    1/2"141.910,00010,800-450 to 5506"FDA Compliant 21 CFR 175.105
    FDA Compliant 21 CFR 177.2600
    Fed. Spec. A-A-58092 Type IIMil. Spec.
    UL Listed
    MIL-T-27730White6802K830000000000
    3/4"141.910,00010,800-450 to 5506"FDA Compliant 21 CFR 175.105
    FDA Compliant 21 CFR 177.2600
    Fed. Spec. A-A-58092 Type IIMil. Spec.
    UL Listed
    MIL-T-27730White6802K840000000000
    1"141.910,00010,800-450 to 5506"FDA Compliant 21 CFR 175.105
    FDA Compliant 21 CFR 177.2600
    Fed. Spec. A-A-58092 Type IIMil. Spec.
    UL Listed
    MIL-T-27730White6802K850000000000
    1 1/2"141.910,00010,800-450 to 5506"FDA Compliant 21 CFR 175.105
    FDA Compliant 21 CFR 177.2600
    Fed. Spec. A-A-58092 Type IIMil. Spec.
    UL Listed
    MIL-T-27730White6802K860000000000
    2"141.910,00010,800-450 to 5506"FDA Compliant 21 CFR 175.105
    FDA Compliant 21 CFR 177.2600
    Fed. Spec. A-A-58092 Type IIMil. Spec.
    UL Listed
    MIL-T-27730White6802K870000000000
     
    Nickel-Filled PTFE
     
    0.0035" Thick
    1/4"141.410,00010,000-450 to 5501/2"C-UL Listed
    UL Listed
    Gray7346A211000000000
    3/8"141.410,00010,000-450 to 5503/4"C-UL Listed
    UL Listed
    Gray7346A2120000000000
    1/2"141.410,00010,000-450 to 5501"C-UL Listed
    UL Listed
    Gray7346A2130000000000
    3/4"141.410,00010,000-450 to 5501 1/2"C-UL Listed
    UL Listed
    Gray7346A2140000000000
    1"141.410,00010,000-450 to 5502"C-UL Listed
    UL Listed
    Gray7346A2150000000000
     
    0.0040" Thick
    1/4"141.910,50011,500-450 to 5506"FDA Compliant 21 CFR 175.105
    FDA Compliant 21 CFR 177.2600
    UL Listed
    White6802K880000000000
    3/8"141.910,50011,500-450 to 5506"FDA Compliant 21 CFR 175.105
    FDA Compliant 21 CFR 177.2600
    UL Listed
    White6802K890000000000
    1/2"141.910,50011,500-450 to 5506"FDA Compliant 21 CFR 175.105
    FDA Compliant 21 CFR 177.2600
    UL Listed
    White6802K910000000000
    3/4"141.910,50011,500-450 to 5506"FDA Compliant 21 CFR 175.105
    FDA Compliant 21 CFR 177.2600
    UL Listed
    White6802K920000000000
    1"141.910,50011,500-450 to 5506"FDA Compliant 21 CFR 175.105
    FDA Compliant 21 CFR 177.2600
    UL Listed
    White6802K930000000000
    2"141.910,50011,500-450 to 5506"FDA Compliant 21 CFR 175.105
    FDA Compliant 21 CFR 177.2600
    UL Listed
    White6802K950000000000
     

    Non-Hardening High-Temperature Thread Sealants

    Image of Product. Front orientation. Thread Sealants. Non-Hardening High-Temperature Thread Sealants, Applicator-Top Can.
    Image of Product. Front orientation. Thread Sealants. Non-Hardening High-Temperature Thread Sealants, Can.
    Image of Product. Front orientation. Thread Sealants. Non-Hardening High-Temperature Thread Sealants, Tube.

    Applicator-Top Can

    Can

    Tube

    Often used in high-vibration applications that could cause standard thread sealants to fail, these never fully harden and remain pliable enough to self-heal and stop leaks before they start. They have low locking strength, so they can be adjusted without tools.
    Container
    Max.
    Pressure, psi
    Temp.,
    ° F
    Size, fl.
    oz.
    Net Wt.,
    lb.
    Type
    For
    Fluids
    For
    Gases
    Min.
    Max.
    For Max.
    Thread Dia.
    Consistency
    Color
    Each
    Low Locking Strength
     
    Key Graphite
    0.625Applicator-Top Can15,00015,000-307504"PasteBlack4586K8000000
    1Can15,00015,000-307504"PasteBlack4586K500000
    2.75Can15,00015,000-307504"PasteBlack4586K6000000
    10Can15,00015,000-307504"PasteBlack4586K7000000
     
    Other Thread Sealants
    4.4Tube2,3002,300Not Rated1,1002"PasteBlack1965K100000
     

    Thread Sealants for Oxygen Systems

    Image of Product. Front orientation. Thread Sealants. Thread Sealants for Oxygen Systems, Jar.

    Jar

    Completely free of oil and chemically inert, these sealants are safe to use with wet and dry oxygen systems. They contain PTFE, which provides a slippery surface that keeps threads from binding. These sealants are non-hardening, remaining pliable enough to self-heal and stop leaks before they start, so they’re often used in high-vibration applications that could cause standard thread sealants to fail. Since they have low locking strength, these sealants can be adjusted without tools.
    Container
    Max.
    Pressure, psi
    Temp.,
    ° F
    Size, fl.
    oz.
    Type
    For
    Fluids
    For
    Gases
    Min.
    Max.
    Max. Temp.
    for Oxygen, ° F
    For Max.
    Thread Dia.
    Consistency
    Certification
    Mil. Spec.
    Color
    Each
    Low Locking Strength
    3.5Jar10,00010,000-4505501406"PasteMil. Spec.MIL-PRF-27617Green4538K60000000
     

    Reusable Non-Hardening Thread Sealants for Coarse Threads

    Image of Product. Front orientation. Thread Sealants. Reusable Non-Hardening Thread Sealants for Coarse Threads.
    Much thicker than sealants for fine threads, these sealants bridge the gaps between coarse threads. Threads coated with these sealants can be installed multiple times without recoating. They have low locking strength, so they prevent threads from loosening due to vibration and can be adjusted without tools. They meet NSF/ANSI 61 for use with drinking water.
    Container
    Max.
    Pressure, psi
    Temp.,
    ° F
    Size, fl.
    oz.
    Type
    For
    Fluids
    For
    Gases
    Min.
    Max.
    For Max.
    Thread Dia.
    Consistency
    Food Industry
    Std.
    Choose a
    Color
    Each
    Low Locking Strength
    2Applicator-Top Bottle10,000300-653004"Thick LiquidNSF/ANSI 61
    White
    ,
    Orange
    4592K2000000
     

    Reusable Non-Hardening Thread Sealants for Fine Threads

    Image of Product. Front orientation. Thread Sealants. Reusable Non-Hardening Thread Sealants for Fine Threads.
    Formulated to flow into small spaces, use these sealants between fine threads. Threads coated with these sealants can be installed multiple times without recoating. They have low locking strength, so they prevent threads from loosening due to vibration and can be adjusted without tools. They meet NSF/ANSI 61 for use with drinking water.
    Container
    Max.
    Pressure, psi
    Temp.,
    ° F
    Size, fl.
    oz.
    Type
    For
    Fluids
    For
    Gases
    Min.
    Max.
    For Max.
    Thread Dia.
    Consistency
    Food Industry
    Std.
    Choose a
    Color
    Each
    Low Locking Strength
    2Applicator-Top Bottle10,000300-653004"Thick LiquidNSF/ANSI 61
    White
    ,
    Orange
    4592K3000000
     

    Thread Sealant Tape

    Image of Product. Front orientation. Thread Sealants. Thread Sealant Tape.
    Made of PTFE, this tape has a slippery surface that keeps threads from binding to make parts easy to assemble.
    ePTFE with Graphite—ePTFE tape with graphite creates a better seal between threads than plain PTFE tape, which helps prevent fluid and gas leaks. The graphite attaches to the PTFE, so this tape does not emit harmful VOCs.
    Max.
    Pressure, psi
    Wd.
    Lg.,
    yd.
    Density,
    g/cm³
    For
    Fluids
    For
    Gases
    Temp. Range,
    ° F
    For Max.
    Thread Dia.
    Food Industry Std.
    Certification
    Mil. Spec.
    Color
    Each
    PTFE
     
    0.0025" Thick
    1/4"160.5510,00010,000-450 to 5501/2"FDA Compliant 21 CFR 177.1550
    UL Listed
    White4591K1100000
    3/8"160.5510,00010,000-450 to 5501"FDA Compliant 21 CFR 177.1550
    UL Listed
    White4591K180000
    1/2"160.5510,00010,000-450 to 5501"FDA Compliant 21 CFR 177.1550
    UL Listed
    White4591K120000
    3/4"160.5510,00010,000-450 to 5501 1/2"FDA Compliant 21 CFR 177.1550
    UL Listed
    White4591K130000
    1"160.5510,00010,000-450 to 5501 1/2"FDA Compliant 21 CFR 177.1550
    UL Listed
    White4591K140000
     
    0.0032" Thick
    1/4"140.710,00010,000-450 to 5501/2"FDA Compliant 21 CFR 177.1550
    Mil. Spec.
    UL Listed
    MIL-T-27730White6802K110000
    3/8"140.710,00010,000-450 to 5503/4"FDA Compliant 21 CFR 177.1550
    Mil. Spec.
    UL Listed
    MIL-T-27730White6802K180000
    1/2"140.710,00010,000-450 to 5501"FDA Compliant 21 CFR 177.1550
    Mil. Spec.
    UL Listed
    MIL-T-27730White6802K120000
    3/4"140.710,00010,000-450 to 5501 1/2"FDA Compliant 21 CFR 177.1550
    Mil. Spec.
    UL Listed
    MIL-T-27730White6802K130000
    1"140.710,00010,000-450 to 5502"FDA Compliant 21 CFR 177.1550
    Mil. Spec.
    UL Listed
    MIL-T-27730White6802K140000
    1 1/2"140.710,00010,000-450 to 5503"FDA Compliant 21 CFR 177.1550
    Mil. Spec.
    UL Listed
    MIL-T-27730White6802K1500000
    2"140.710,00010,000-450 to 5504"FDA Compliant 21 CFR 177.1550
    Mil. Spec.
    UL Listed
    MIL-T-27730White6802K1600000
     
    0.0035" Thick
    1/2"390.810,00010,000-450 to 5002"C-UL Listed
    UL Listed
    Blue4934A150000
    3/4"390.810,00010,000-450 to 5002"C-UL Listed
    UL Listed
    Blue4934A160000
    1"390.810,00010,000-450 to 5002"C-UL Listed
    UL Listed
    Blue4934A1700000
    2"390.810,00010,000-450 to 5002"C-UL Listed
    UL Listed
    Blue4934A1800000
     
    ePTFE with Graphite
     
    0.0020" Thick
    5/8"270.82,9002,900-400 to 5001 1/4"Gray6802K2500000
     

    Thread Sealant Tape for Stainless Steel Threads

    Image of Product. Front orientation. Thread Sealants. Thread Sealant Tape for Stainless Steel Threads.
    This tape is thicker to prevent seizing and galling associated with stainless steel threaded connections. It’s also good for use with other metals. This tape has a higher density than standard tape for a better seal between threads. Made of PTFE, it has a slippery surface that keeps threads from binding to make parts easy to assemble.
    Max.
    Pressure, psi
    Each
    Wd.
    Lg.,
    ft.
    Density,
    g/cm³
    For
    Fluids
    For
    Gases
    Temp. Range,
    ° F
    For Max.
    Thread Dia.
    Certification
    Mil. Spec.
    Color
    1-11
    12-Up
    PTFE
     
    0.0043" Thick
    1/4"431.0510,00010,000-450 to 5501 1/2"Mil. Spec.
    UL Listed
    MIL-T-27730Gray1726N110000000000
    3/8"431.0510,00010,000-450 to 5501 1/2"Mil. Spec.
    UL Listed
    MIL-T-27730Gray1726N1200000000
    1/2"211.0510,00010,000-450 to 5501 1/2"Mil. Spec.
    UL Listed
    MIL-T-27730Gray1726N1700000000
    1/2"501.0510,00010,000-450 to 5501 1/2"Mil. Spec.
    UL Listed
    MIL-T-27730Gray1726N130000000000
    3/4"211.0510,00010,000-450 to 5501 1/2"Mil. Spec.
    UL Listed
    MIL-T-27730Gray1726N1400000000
    1"211.0510,00010,000-450 to 5501 1/2"Mil. Spec.
    UL Listed
    MIL-T-27730Gray1726N1800000000
    1"431.0510,00010,000-450 to 5501 1/2"Mil. Spec.
    UL Listed
    MIL-T-27730Gray1726N150000000000
    1 1/2"431.0510,00010,000-450 to 5501 1/2"Mil. Spec.
    UL Listed
    MIL-T-27730Gray1726N160000000000
     

    Choose-a-Color High-Density Thread Sealant Tape

    Image of Product. Front orientation. Thread Sealants. Choose-a-Color High-Density Thread Sealant Tape.
    Use color to identify water, gas, and chemical connections. This tape has a higher density than standard tape for a better seal between threads. Made of PTFE, it has a slippery surface that keeps threads from binding to make parts easy to assemble.
    Green—Green tape is often used for oxygen.
    Orange and Yellow—Orange and yellow tape is commonly used to indicate fuel and gas.
    Red—Red tape is often used for water.
    Max.
    Pressure, psi
    Each
    Wd.
    Lg.,
    yd.
    Density,
    g/cm³
    For
    Fluids
    For
    Gases
    Temp. Range,
    ° F
    For Max.
    Thread Dia.
    Specs. Met
    Certification
    Mil. Spec.
    Choose a Color
    1-11
    12-Up
    PTFE
     
    0.0032" Thick
    1/4"141.210,00010,000-450 to 5501/2"Fed. Spec. A-A-58092 Type IIMil. Spec.
    UL Listed
    MIL-T-27730
    Green
    ,
    Orange
    ,
    Red
    ,
    Yellow
    44945K110000000000
    3/8"141.210,00010,000-450 to 5503/4"Fed. Spec. A-A-58092 Type IIMil. Spec.
    UL Listed
    MIL-T-27730
    Green
    ,
    Orange
    ,
    Red
    ,
    Yellow
    44945K1700000000
    1/2"141.210,00010,000-450 to 5501"Fed. Spec. A-A-58092 Type IIMil. Spec.
    UL Listed
    MIL-T-27730
    Green
    ,
    Orange
    ,
    Red
    ,
    Yellow
    44945K1200000000
    3/4"141.210,00010,000-450 to 5501 1/2"Fed. Spec. A-A-58092 Type IIMil. Spec.
    UL Listed
    MIL-T-27730
    Green
    ,
    Orange
    ,
    Red
    ,
    Yellow
    44945K1300000000
    1"141.210,00010,000-450 to 5502"Fed. Spec. A-A-58092 Type IIMil. Spec.
    UL Listed
    MIL-T-27730
    Green
    ,
    Orange
    ,
    Red
    ,
    Yellow
    44945K140000000000
    1 1/2"141.210,00010,000-450 to 5503"Fed. Spec. A-A-58092 Type IIMil. Spec.
    UL Listed
    MIL-T-27730
    Green
    ,
    Orange
    ,
    Red
    ,
    Yellow
    44945K150000000000
    2"141.210,00010,000-450 to 5504"Fed. Spec. A-A-58092 Type IIMil. Spec.
    UL Listed
    MIL-T-27730
    Green
    ,
    Orange
    ,
    Red
    ,
    Yellow
    44945K160000000000
     

    Thread Sealant Tape for Copper, Brass, and Bronze Threads

    Image of Product. Front orientation. Thread Sealants. Thread Sealant Tape for Copper, Brass, and Bronze Threads.
    With 10% copper flake content, this tape matches the color of copper, brass, and bronze threads for a seamless finish. It’s made of PTFE, so it has a slippery surface to keep threads from binding. This tape has a higher density than standard tape for a better seal between threads.
    Max.
    Pressure, psi
    Wd.
    Lg.,
    ft.
    Density,
    g/cm³
    For
    Fluids
    For
    Gases
    Temp. Range,
    ° F
    For Max.
    Thread Dia.
    Certification
    Mil. Spec.
    Color
    Each
    Copper-Filled PTFE
     
    0.0045" Thick
    1/2"501.610,000300-450 to 5001 1/2"Mil. Spec.MIL-T-27730Copper4840N11000000
    3/4"501.610,000300-450 to 5004"Mil. Spec.MIL-T-27730Copper4840N1200000
     
    back to top