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    78 Products

    Tri-Groove-Drive Tamper-Resistant Nuts

    Image of Product. Front orientation. Tamper-Resistant Nuts. Tri-Groove-Drive Tamper-Resistant Nuts.
    Tri-groove-drive nuts are narrower than sloped and drilled-spanner-drive nuts to fit in tight spaces. Install with a tri-groove socket and either a socket driver or an open-end wrench (all sold separately). Use them to reduce the risk of unwanted removal for objects in public spaces such as signs, lighting fixtures, and displays.
    Zinc—Zinc nuts are lightweight and corrosion resistant in wet environments.
    Zinc-Plated Steel—Zinc-plated steel nuts are coated to protect the steel from corrosion in wet environments.
    316 Stainless Steel—316 stainless steel nuts won’t corrode from water, chemicals, or salt spray.
    Nuts
    Tri-Groove
    Sockets
    Socket Drivers
    Open-End
    Wrenches
    Thread Size
    Dia.
    Ht.
    Pkg.
    Qty.
    Pkg.
    Each
    Each
    Each
    Zinc
    M6 × 1 mm0.66"0.265"100000000000000000000000000000000000000000———0
    M8 × 1.25 mm0.83"0.345"100000000000000000000000000000000000000———0
     
    Zinc-Plated Steel
    10-24
    0.64"0.265"2500000000000000000000000000000000000000———0
    10-32
    0.64"0.265"2500000000000000000000000000000000000000———0
    1/4"-20
    0.64"0.265"2500000000000000000000000000000000000000———0
    5/16"-18
    0.83"0.345"2500000000000000000000000000000000000000———0
    3/8"-16
    0.83"0.345"2500000000000000000000000000000000000000———0
     
    316 Stainless Steel
    10-24
    0.65"0.265"1000000000000000000000000000000000000000———0
    10-32
    0.65"0.265"1000000000000000000000000000000000000000———0
    1/4"-20
    0.66"0.265"1000000000000000000000000000000000000000———0
    1/4"-28
    0.65"0.265"1000000000000000000000000000000000000000———0
    5/16"-18
    0.83"0.345"1000000000000000000000000000000000000000———0
    5/16"-24
    0.83"0.35"500000000000000000000000000000000000000———0
    3/8"-16
    0.83"0.345"1000000000000000000000000000000000000000———0
    3/8"-24
    0.83"0.35"500000000000000000000000000000000000000———0
    7/16"-14
    0.83"0.34"10000000000000000000000000000000000000———0
    1/2"-13
    0.93"0.345"100000000000000000000000000000000000000———0
    1/2"-20
    0.93"0.345"100000000000000000000000000000000000000———0
    5/8"-11
    1.51"0.505"1000000000000000000000000000———00000000000000
    5/8"-18
    1.51"0.505"1000000000000000000000000000———0000000000000
    3/4"-10
    1.51"0.505"1000000000000000000000000000———0000000000000
    3/4"-16
    1.51"0.505"1000000000000000000000000000———0000000000000
    M5 × 0.8 mm0.66"0.265"500000000000000000000000000000000000000———0
    M6 × 1 mm0.66"0.265"500000000000000000000000000000000000000———0
    M8 × 1 mm0.82"0.35"10000000000000000000000000000000000000———0
    M8 × 1.25 mm0.82"0.35"500000000000000000000000000000000000000———0
    M10 × 1.25 mm0.82"0.35"10000000000000000000000000000000000000———0
    M10 × 1.5 mm0.82"0.35"10000000000000000000000000000000000000———0
    M12 × 1.5 mm0.94"0.35"100000000000000000000000000000000000000———0
    M12 × 1.75 mm0.94"0.35"100000000000000000000000000000000000000———0
    M16 × 2 mm1.51"0.505"1000000000000000000000000000———0000000000000
     

    Breakaway Tamper-Resistant Nuts

    Image of ProductInUse. Front orientation. Contains Annotated. Tamper-Resistant Nuts. Breakaway.
    Image of Product. Front orientation. Tamper-Resistant Nuts. Breakaway, Aluminum.
    Image of Product. Front orientation. Tamper-Resistant Nuts. Breakaway, Zinc.
    Image of Product. Front orientation. Tamper-Resistant Nuts. Breakaway, Zinc-Plated Alloy Steel.
    Image of Product. Front orientation. Tamper-Resistant Nuts. Breakaway, 18-8 Stainless Steel.

    Aluminum

    Zinc

    Zinc-Plated Alloy

    Steel

    18-8 Stainless

    Steel

    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.
    Zinc and Zinc-Plated Alloy Steel—Zinc and zinc-plated alloy steel nuts are corrosion resistant in wet environments.
    18-8 Stainless Steel—18-8 stainless steel nuts have good chemical resistance and may be mildly magnetic.
    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
     
    Zinc
    10-24
    7/16"25/64"3/16"401000000000000000
    1/4"-20
    9/16"15/32"7/32"601000000000000000
    5/16"-18
    5/8"1/2"7/32"1101000000000000000
    3/8"-16
    3/4"37/64"1/4"1501000000000000000
    1/2"-13
    1"3/4"11/32"360500000000000000
    5/8"-11
    1 1/8"51/64"3/8"360500000000000000
    M6 × 1 mm14 mm12 mm6 mm601000000000000000
    M8 × 1.25 mm16 mm13 mm6 mm1101000000000000000
    M10 × 1.5 mm19 mm15 mm6 mm150500000000000000
    M12 × 1.75 mm25 mm19 mm9 mm360500000000000000
     
    Zinc-Plated Alloy Steel
    3/4"-10
    1 1/4"1"13/32"1,500100000000000000000
     
    18-8 Stainless Steel
    1/4"-20
    9/16"15/32"7/32"95500000000000000
    5/16"-18
    5/8"1/2"7/32"130500000000000000
    3/8"-16
    3/4"37/64"1/4"245500000000000000
    1/2"-13
    1"3/4"11/32"405100000000000000000
    5/8"-11
    1 1/8"51/64"3/8"51050000000000000000
    M6 × 1 mm10 mm10 mm5 mm851000000000000000
    M8 × 1.25 mm13 mm12 mm7 mm1851000000000000000
    M10 × 1.5 mm17 mm15 mm9 mm350500000000000000
    M12 × 1.75 mm19 mm16 mm9 mm395500000000000000
     

    Drilled-Spanner-Drive Tamper-Resistant Nuts

    Image of Product. Front orientation. Tamper-Resistant Nuts. Drilled-Spanner-Drive Tamper-Resistant Nuts.
    A wide base and large bearing surface make these nuts good for securing large objects. They must be installed and removed 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.
    Zinc—Made from zinc, they're corrosion resistant in wet environments.
    Nuts
    Spanner
    Nutdrivers
    Thread Size
    Dia.
    Ht.
    Pkg.
    Qty.
    Pkg.
    Each
    Zinc
    1/4"-20
    1"1/4"10000000000000000000000000000000
    5/16"-18
    1"1/4"100000000000000000000000000000
    3/8"-16
    1"1/4"100000000000000000000000000000
    M6 × 1 mm1"1/4"100000000000000000000000000000
    M8 × 1.25 mm1"1/4"100000000000000000000000000000
    M10 × 1.5 mm1"1/4"100000000000000000000000000000
     

    Sloped Tamper-Resistant Nuts

    Image of ProductInUse. Front orientation. Tamper-Resistant Nuts. Sloped Surface.
    Image of Product. Front orientation. Tamper-Resistant Nuts. Sloped Surface.
    Sloped sides make these nuts difficult to grasp with standard hand tools to reduce the risk of unwanted removal. To install, thread a second sloped nut onto the bolt upside down and insert a wrench between the two nuts to fasten. They're often used to secure signs, lighting fixtures, and displays in public spaces.
    Zinc-Yellow-Chromate-Plated Steel—A zinc yellow-chromate plating provides corrosion resistance in wet environments.
    Thread Size
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    Zinc-Yellow-Chromate-Plated Steel
    1/4"-20
    1 3/64"15/64"500000000000000
    5/16"-18
    1 3/64"15/64"50000000000000
    3/8"-16
    1 3/64"15/64"50000000000000
    M6 × 1 mm1 3/64"15/64"50000000000000
    M8 × 1.25 mm1 3/64"15/64"50000000000000
    M10 × 1.5 mm1 3/64"15/64"50000000000000
     

    Serrated-Edge-Drive Tamper-Resistant Nuts

    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.
    Nuts
    Serrated-Edge
    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
     
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