McMaster-Carr logo
    Filter by
    Nut Type
    Material
    System of Measurement
    Thread Direction
    Thread Spacing
    Industrial Info Snippet
    Thread Type
    Height After Installation
    Diameter
    Attribute Image
    Locking Type
    Performance
    USMCA Qualifying
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    8 Products

    Breakaway Tamper-Resistant Nuts
    3D CAD models available

    Image of ProductInUse. Front orientation. Contains Annotated. Tamper-Resistant Nuts. Breakaway.
    Image of Product. Front orientation. Tamper-Resistant Nuts. Breakaway, Aluminum.

    Aluminum

    The most tamper-resistant nuts we offer, these have a hex head that breaks away upon tightening, leaving a non-removable cone. They can be installed using a standard wrench. Use them to reduce the risk of unwanted removal for objects in public spaces such as signs, lighting fixtures, and displays.
    Aluminum—Aluminum nuts are lightweight, corrosion resistant in wet environments, and nonmagnetic.
    Thread
    Size
    Wd.
    Ht.
    Ht. After
    Installation
    Breaking
    Torque,
    in·lbf
    Pkg.
    Qty.
    Pkg.
    Aluminum
    10-24
    7/16"3/8"3/16"401000000000000000
    1/4"-20
    9/16"31/64"7/32"70100000000000000
    5/16"-18
    5/8"1/2"7/32"1501000000000000000
    3/8"-16
    3/4"19/32"1/4"1951000000000000000
     

    Serrated-Edge-Drive Tamper-Resistant Nuts
    3D CAD models available

    Image of Product. Front orientation. Tamper-Resistant Nuts. Serrated-Edge-Drive Tamper-Resistant Nuts.
    These nuts have serrations that dig into the material surface to resist loosening and are narrow to fit in tight spaces. They must be installed with a nutdriver (sold separately). Use them to reduce the risk of unwanted removal for objects in public spaces such as signs, lighting fixtures, and displays.
    Aluminum—Aluminum nuts are lightweight, corrosion resistant in wet environments, and nonmagnetic.
    Nutdrivers
    Thread
    Size
    Dia.
    Ht.
    Pkg.
    Qty.
    Pkg.
    Each
    Aluminum
    10-24
    1/2"3/16"25000000000000000000000000000000
    1/4"-20
    1/2"3/16"10000000000000000000000000000
    5/16"-18
    1/2"3/16"10000000000000000000000000000
     
    back to top