McMaster-Carr logo
    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)
    31 Products

    Threadlockers

    Image of Product. Front orientation. Threadlockers. Threadlockers, Bottle.
    Image of Product. Front orientation. Threadlockers. Threadlockers, Single-Use Capsule.

    Bottle

    Single-Use

    Capsule

    The most commonly used threadlockers, these liquids prevent loosening due to vibration, bending, or improper torque. You only need a few drops to evenly coat threads. As you twist parts together, exposure to air is blocked and the threadlocker begins to harden.
    Primer (sold separately) cleans the surface and decreases the time to reach full strength. It is recommended when working with aluminum, stainless steel, and titanium; black-oxide finishes; and cadmium and zinc coatings.
    Low Locking Strength—Often used in setups that require frequent disassembly, these threadlockers are easily released with the turn of a screwdriver or L-key. They give fasteners additional hold to keep them secure against light shock and vibration.
    Medium Locking Strength—Strong enough for most applications, these threadlockers hold firmly until you break their bond with a combination or ratchet wrench.
    High Locking Strength—Keep fasteners firmly in place in motors, pumps, and other applications subjected to heavy shock and vibration. Breaking the bond of these threadlockers requires a propane torch, heat gun, or induction heater. As a result, they shouldn't be used in setups that you disassemble often.
    Thin Liquid—Seep into tight spaces better than thick liquids, so they're best for fine threads.
    Container
    Each
    Package
    Mfr. Model
    No.
    Size, fl.
    oz.
    Type
    Begins to
    Harden, min.
    Color
    Breakaway Torque,
    in·lbf
    Temp. Range,
    ° F
    Consistency
    Viscosity,
    cP
    Reaches Full
    Strength, hr.
    Each
    Pkg.
    Qty.
    Pkg.
    Low Locking Strength
     
    3M Scotch-Weld
    TL221.69Bottle20Purple95-65 to 300Thin Liquid1,2002492934A8100000001092934A8110000000
     
    Medium Locking Strength
     
    3M Scotch-Weld
    TL420.03Single-Use Capsule20Blue140-65 to 300Thin Liquid1,2002492934A110000010092934A111000000
    TL420.34Bottle20Blue140-65 to 300Thin Liquid1,2002492934A420000001092934A421000000
    TL421.69Bottle20Blue140-65 to 300Thin Liquid1,2002492934A820000001092934A821000000
    TL428.45Bottle20Blue140-65 to 300Thin Liquid1,2002492934A120000000————0
     
    High Locking Strength
     
    3M Scotch-Weld
    TL710.34Bottle20Red225-65 to 300Thin Liquid5002492934A440000001092934A441000000
    TL711.69Bottle20Red225-65 to 300Thin Liquid5002492934A160000001092934A161000000
    TL718.45Bottle20Red225-65 to 300Thin Liquid5002492934A170000000————0
     

    Instant-Bond Adhesives

    Image of Product. Front orientation. Instant-Bond Adhesives.
    Create strong, permanent bonds in 75 seconds or less. Also known as super glue, these adhesives are ideal for fast assembly and repair.
    Apply an accelerator first to reach a full-strength bond even faster.
    Thin Liquid—Seep into narrow gaps and joints that thick-liquid adhesives can't reach. Use when bonding close-fitting parts.
    Thick Liquid—Fill larger gaps than thin-liquid adhesives, so they're better for bonding slightly misaligned or uneven surfaces.
    Gel—Flow more slowly than liquid and stick in place without dripping, even on vertical surfaces. Use when making a mess isn't an option.
    Container
    Mfr. Model
    No.
    Size, fl.
    oz.
    Type
    Begins to
    Harden, sec.
    Reaches Full
    Strength, hr.
    Consistency
    Viscosity,
    cP
    Max. Gap
    Size Filled
    Temp. Range,
    ° F
    Specs. Met
    For Joining
    Each
    3M Scotch-Weld
    CA51Bottle1524Thick Liquid2,0000.008"-65 to 180Fed. Spec. A-A-3097Composite, Metal, Plastic, Rubber75445A73000000
    CA50 Gel0.7Tube6024Gel35,0000.02"-65 to 180—Composite, Metal, Plastic, Rubber75445A6600000
    CA1001Bottle2024Thick Liquid3,5000.02"-65 to 210Fed. Spec. A-A-3097Composite, Plastic, Rubber75445A6500000
    PR1000.7Bottle1024Thin Liquid900.006"-65 to 180Fed. Spec. A-A-3097Metal, Plastic, Rubber75445A4400000
    PR15000.7Bottle2024Thick Liquid1,4500.008"-65 to 180Fed. Spec. A-A-3097Metal, Plastic, Rubber75445A2200000
     

    Optically Clear Instant-Bond Adhesives

    Image of Product. Front orientation. Instant-Bond Adhesives. Optically Clear Instant-Bond Adhesives.
    Form invisible bonds on lenses, displays, and other transparent plastic surfaces. These clear adhesives won't turn cloudy after hardening.
    Apply an accelerator first to reach a full-strength bond faster.
    Thin Liquid—Seep into narrow gaps and joints that thick-liquid adhesives can't reach. Use when bonding close-fitting parts.
    Material Certificate Icon
    Certificates with a traceable lot number and product shelf life are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Container
    Mfr. Model
    No.
    Size, fl.
    oz.
    Type
    Begins to
    Harden, sec.
    Reaches Full
    Strength, hr.
    Consistency
    Viscosity,
    cP
    Max. Gap
    Size Filled
    Temp. Range,
    ° F
    Specs. Met
    For Joining
    Each
    3M Scotch-Weld
    LO10000.7Bottle2024Thin Liquid1,0500.008"-65 to 160Fed. Spec. A-A-3097Plastic, Rubber75445A51000000
     

    Instant-Bond Adhesives for Hard-to-Bond Materials

    Image of Product. Front orientation. Instant-Bond Adhesives. Instant-Bond Adhesives for Hard-to-Bond Materials.
    Join plastics that standard instant-bond adhesives can't grip. These adhesives stick to smooth materials, such as polyethylene and polypropylene. Clean and prepare the surface with primer so the adhesive can spread, dry, and gain strength.
    Add an accelerator after the primer and before the adhesive to reach a full-strength bond faster.
    Gel—Flow more slowly than liquid and stick in place without dripping, even on vertical surfaces. Use when making a mess isn't an option.
    Material Certificate Icon
    Certificates with a traceable lot number and product shelf life are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Container
    Mfr. Model
    No.
    Size, fl.
    oz.
    Type
    Begins to
    Harden, sec.
    Reaches Full
    Strength, hr.
    Consistency
    Viscosity,
    cP
    Max. Gap
    Size Filled
    Temp. Range,
    ° F
    For Joining
    Each
    3M Scotch-Weld
    PR Gel0.7Tube2024Gel125,0000.02"-65 to 180Metal, Plastic, Rubber75445A48000000
    SI Gel0.7Tube2024Gel125,0000.02"-65 to 180Fabric, Plastic, Rubber, Wood75445A2600000
     

    Quick-Set Wicking Instant-Bond Adhesives

    Image of Product. Front orientation. Instant-Bond Adhesives. Quick-Set Wicking Instant-Bond Adhesives.
    Bond parts that are already installed in half the time of our other wicking instant-bond adhesives. Our thinnest adhesives use capillary action to pull themselves deep into close-fitting seams—like water up the roots of a tree.
    Apply an accelerator first to reach a full-strength bond faster.
    Thin Liquid—Seep into narrow gaps and joints that thick-liquid adhesives can't reach. Use when bonding close-fitting parts.
    Container
    Mfr. Model
    No.
    Size, fl.
    oz.
    Type
    Begins to
    Harden, sec.
    Reaches Full
    Strength, hr.
    Consistency
    Viscosity,
    cP
    Max. Gap
    Size Filled
    Temp. Range,
    ° F
    Specs. Met
    For Joining
    Each
    3M Scotch-Weld
    CA401Bottle324Thin Liquid200.004"-65 to 180Fed. Spec. A-A-3097Composite, Metal, Plastic, Rubber75445A67000000
    SF200.7Bottle424Thin Liquid200.004"-65 to 180Fed. Spec. A-A-3097Fabric, Plastic, Rubber, Wood75445A2300000
     

    Quick-Set Instant-Bond Adhesives

    Image of Product. Front orientation. Instant-Bond Adhesives. Quick-Set Instant-Bond Adhesives.
    Minimize downtime during joint assembly and repair. These adhesives form bonds in five seconds or less—up to 15 times faster than standard instant-bond adhesives.
    Apply an accelerator first to reach a full-strength bond even faster.
    Thin Liquid—Seep into narrow gaps and joints that thick-liquid adhesives can't reach. Use when bonding close-fitting parts.
    Container
    Mfr. Model
    No.
    Size, fl.
    oz.
    Type
    Begins to
    Harden, sec.
    Reaches Full
    Strength, hr.
    Consistency
    Viscosity,
    cP
    Max. Gap
    Size Filled
    Temp. Range,
    ° F
    Specs. Met
    For Joining
    Each
    3M Scotch-Weld
    CA41Bottle524Thin Liquid1500.006"-65 to 180—Composite, Metal, Plastic, Rubber75445A72000000
    CA81Bottle524Thin Liquid1000.006"-65 to 180Fed. Spec. A-A-3097Composite, Plastic, Rubber75445A6900000
    CA40H1Bottle524Thin Liquid5000.006"-65 to 180Fed. Spec. A-A-3097Composite, Metal, Plastic, Rubber75445A6800000
    CA40H16Bottle524Thin Liquid5000.006"-65 to 180Fed. Spec. A-A-3097Composite, Metal, Plastic, Rubber75445A82000000
    PR6001.69Bottle424Thin Liquid6000.006"-65 to 180Fed. Spec. A-A-3097Metal, Plastic, Rubber75445A2100000
    SF1000.1Tube424Thin Liquid800.006"-65 to 180Fed. Spec. A-A-3097Fabric, Plastic, Rubber, Wood75445A240000
    SF1000.7Bottle424Thin Liquid800.006"-65 to 180Fed. Spec. A-A-3097Fabric, Plastic, Rubber, Wood75445A2500000
     
    back to top