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    75 Products
    About Hex Nuts
    industrial info icon

    Choose a hex nut with the right profile, material, and strength for your application.

    Hex Nuts

    Image of Product. Front orientation. Hex Nuts. Hex Nuts.
    The most commonly used hex nuts, these are suitable for fastening most machinery and equipment.
    Plastic
    High-Strength High-Temperature PEEK—A close alternative to metal nuts, these offer the best strength of all our plastic nuts to stand up to high-stress applications. They also won't degrade when exposed to high heat, so they are a good choice for joining components on circuit boards and other electrical applications. They aren't very impact resistant, however, and may crack or dent if subjected to hard bumps and vibrations.
    Temp.,
    ° F
    Thread Size
    Wd.
    Ht.
    Min.
    Max.
    Choose a
    Color
    Pkg.
    Qty.
    Pkg.
    High-Strength High-Temperature PEEK
    4-40
    		1/4"3/32"-50550
    Black
    ,
    Brown
    		100000000000000
    6-32
    		5/16"7/64"-50550
    Black
    ,
    Brown
    		10000000000000
    8-32
    		11/32"1/8"-50550
    Black
    ,
    Brown
    		10000000000000
    10-32
    		3/8"1/8"-50550
    Black
    ,
    Brown
    		10000000000000
    1/4"-20
    		7/16"3/16"-50550
    Black
    ,
    Brown
    		10000000000000
    1/4"-28
    		7/16"3/16"-50550Black10000000000000
    5/16"-18
    		9/16"7/32"-50550
    Black
    ,
    Brown
    		10000000000000
    5/16"-24
    		9/16"7/32"-50550Black10000000000000
    3/8"-16
    		5/8"1/4"-50550
    Black
    ,
    Brown
    		10000000000000
    3/8"-24
    		5/8"1/4"-50550Black10000000000000
    1/2"-13
    		45/64"1/4"-50550Black10000000000000
    1/2"-20
    		45/64"1/4"-50550Black10000000000000
    M3 × 0.5 mm4.8 mm1.4 mm-50550
    Black
    ,
    Brown
    		10000000000000
    M4 × 0.7 mm6.8 mm2 mm-50550
    Black
    ,
    Brown
    		10000000000000
    M5 × 0.8 mm7.8 mm2.5 mm-50550Black10000000000000
    M6 × 1 mm9.9 mm3.2 mm-50550Black10000000000000
    M8 × 1.25 mm12.85 mm4 mm-50550Black10000000000000
    M10 × 1.5 mm15.85 mm6.3 mm-50550Black10000000000000
    M12 × 1.75 mm17.9 mm6.3 mm-50550Black10000000000000
     

    Precision Acme Lead Screws and Nuts

    Image of ProductInUse. Front orientation. Contains Inset. Precision Lead Screws and Nuts. Precision Acme Lead Screws and Nuts.
    Pair with a motor in automated motion and positioning applications. A tight thread fit allows these lead screws and nuts to make accurate, repeatable starts and stops. Also known as single-start and self-locking lead screws and nuts, they have a single thread that runs the length of the screw. The nut travels only when the screw turns, so your system won’t unexpectedly move when the lead screw is at rest. To ensure compatibility, please select components that have the same thread direction, thread size, and number of thread starts.
    Round Nuts—Right-Hand Thread
    Image of Product. Front orientation. Precision Lead Screws and Nuts. Precision Acme Lead Screws and Nuts, Round Nuts—Right-Hand Thread.
    PEEK—PEEK plastic nuts handle twice as much heat as PET and acetal plastic nuts. They have good chemical resistance and excellent corrosion resistance.
    Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.
    Thread
    Size
    Lg.
    Dia.
    Thread
    Type
    Speed
    Ratio
    No. of Thread
    Starts
    Travel Distance
    per Turn
    Thread Fit
    Hardness
    Tensile Strength,
    psi
    Dynamic Thrust
    Load Cap., lb.
    Temp.,
    ° F
    Each
    PEEK
    1/2"-10
    		1"1.5"Acme
    		1:110.1"Acme Class 2C
    		Not Rated16,0005,650-40 to 5250000000000000000
     
    Externally Threaded Nuts—Right-Hand Thread
    Image of Product. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Precision Acme Lead Screws and Nuts, Externally Threaded Nuts—Right-Hand Thread.
    Combine externally threaded nuts with a flange to create a custom flange nut.
    PEEK—PEEK plastic nuts handle twice as much heat as PET and acetal plastic nuts. They have good chemical resistance and excellent corrosion resistance.
    Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.
    External
    Thread
    Thread
    Size
    Lg.
    Dia.
    Thread
    Type
    Speed
    Ratio
    No. of Thread
    Starts
    Travel Distance
    per Turn
    Size
    Lg.
    Thread Fit
    Hardness
    Tensile Strength,
    psi
    Dynamic Thrust
    Load Cap., lb.
    Temp.,
    ° F
    Each
    PEEK
    1/4"-20
    		5/8"0.688"Acme
    		1:110.05"9/16"-18
    		3/8"Acme Class 2C
    		Not Rated16,000150-40 to 5250000000000000000
    1/2"-10
    		3/4"1.125"Acme
    		1:110.1"15/16"-16
    		1/2"Acme Class 2C
    		Not Rated16,000620-40 to 525000000000000000
    3/4"-5
    		1 1/4"1.125"Acme
    		1:110.2"1"-18
    		1/2"Acme Class 2C
    		Not Rated16,0001,400-40 to 525000000000000000
    3/4"-6
    		1 1/4"1.125"Acme
    		1:110.166"1"-18
    		1/2"Acme Class 2C
    		Not Rated16,0001,400-40 to 525000000000000000
    3/4"-10
    		1 1/4"1.125"Acme
    		1:110.1"1"-18
    		1/2"Acme Class 2C
    		Not Rated16,0001,400-40 to 525000000000000000
    1"-4
    		1 1/2"1.5"Acme
    		1:110.25"1 3/8"-16
    		1/2"Acme Class 2C
    		Not Rated16,0002,500-40 to 525000000000000000
    1"-5
    		1 1/2"1.5"Acme
    		1:110.2"1 3/8"-16
    		1/2"Acme Class 2C
    		Not Rated16,0002,500-40 to 525000000000000000
    1"-10
    		1 1/2"1.5"Acme
    		1:110.1"1 3/8"-16
    		1/2"Acme Class 2C
    		Not Rated16,0002,500-40 to 525000000000000000
    1 1/4"-5
    		1 3/4"2.125"Acme
    		1:110.2"1 31/32"-1813/16"Acme Class 2C
    		Not Rated16,0003,900-40 to 525000000000000000
     
    Flanges
    Image of Product. Front orientation. Precision Lead Screw Nut Flanges.
    Image of Attribute. Front orientation. Contains Annotated.
    Thread onto an externally threaded acme nut to create a custom flange nut.
    1117 Carbon Steel—Carbon steel flanges have good machinability. However, they will rust when exposed to moisture.
    Black-Oxide 1117 Carbon Steel—Black-oxide carbon steel flanges have mild corrosion resistance in dry environments and a dark surface color.
    1215 Carbon Steel—Carbon steel flanges have good machinability. However, they will rust when exposed to moisture.
    303 Stainless Steel—303 stainless steel flanges have good corrosion resistance.
    Flange Thread
    Size
    Flange
    Dia.
    Flange
    Thk.
    Bolt Circle
    Dia.
    Flange
    Hardness
    Each
    1117 Carbon Steel
    1 3/8"-16
    		2 49/64"33/64"2 17/64"Brinell 156000000000000000
    1 31/32"-184 13/64"53/64"3 7/16"Brinell 15600000000000000
     
    Black-Oxide 1117 Carbon Steel
    9/16"-18
    		1 39/64"13/32"1 1/8"Brinell 1350000000000000
    15/16"-16
    		2 39/64"17/32"2 3/32"Brinell 1350000000000000
    1 3/8"-16
    		2 49/64"33/64"2 17/64"Brinell 1350000000000000
    1 31/32"-184 13/64"53/64"3 7/16"Brinell 1350000000000000
     
    1215 Carbon Steel
    9/16"-18
    		1 39/64"13/32"1 1/8"Not Rated00000000000000
    15/16"-16
    		2 5/8"17/32"2 3/32"Not Rated00000000000000
    1"-18
    		2 5/8"17/32"2 3/32"Not Rated00000000000000
     
    303 Stainless Steel
    9/16"-18
    		1 39/64"13/32"1 1/8"Brinell 140000000000000
    15/16"-16
    		2 5/8"17/32"2 3/32"Brinell 140000000000000
    1"-18
    		2 5/8"17/32"2 3/32"Brinell 140000000000000
    1 3/8"-16
    		2 49/64"33/64"2 17/64"Brinell 140000000000000
    1 31/32"-184 13/64"53/64"3 7/16"Brinell 1400000000000000
     

    Metric Fast-Travel Ultra-Precision Lead Screws and Nuts

    Image of ProductInUse. Front orientation. Contains Inset. Precision Lead Screws and Nuts. Metric Fast-Travel Ultra-Precision Lead Screws and Nuts.
    Image of Product. Style C. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Metric Fast-Travel Ultra-Precision Lead Screws and Nuts, Externally Threaded Nuts—Right-Hand Thread, Style C.
    Image of Product. Style D. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Metric Fast-Travel Ultra-Precision Lead Screws and Nuts, Flange Nuts—Right-Hand Thread, Style D.

    Style C

    Style D

    Multiple thread channels (also known as thread starts) create faster linear travel than lead screws with a single thread start. Operating with less backlash (play) than Metric Precision Acme Lead Screws and Nuts, these lead screws and nuts provide increased nut life and more reliable movement in automated systems. To ensure compatibility, select components that have the same thread size and number of thread starts.
    Externally Threaded Nuts—Right-Hand Thread
    Image of Product. Style C. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Metric Fast-Travel Ultra-Precision Lead Screws and Nuts, Externally Threaded Nuts—Right-Hand Thread, Style C.

    Style C

    Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.
    External
    Thread
    Style
    Thread
    Size
    Lg.
    Wd.
    Ht.
    Thread Type
    Speed
    Ratio
    No. of Thread
    Starts
    Travel Distance
    per Turn, mm
    Size
    Lg.
    Hardness
    Tensile
    Strength
    Dynamic Thrust
    Load Cap., lb.
    Each
    PEEK
    CM2 × 0.4 mm5/16"0.22"0.197"Metric Rounded Trapezoidal
    		2:120.75M5 × 0.8 mm9/64"Durometer 83DNot Rated200000000000000
    CM2 × 0.4 mm5/16"0.22"0.197"Metric Rounded Trapezoidal
    		4:141.5M5 × 0.8 mm9/64"Durometer 83DNot Rated20000000000000
    CM2 × 0.4 mm5/16"0.22"0.197"Metric Rounded Trapezoidal
    		8:183M5 × 0.8 mm9/64"Durometer 83DNot Rated20000000000000
    CM3 × 0.5 mm13/32"0.311"0.276"Metric Rounded Trapezoidal
    		2:121M7 × 0.75 mm5/32"Durometer 83DNot Rated40000000000000
    CM3 × 0.5 mm13/32"0.311"0.276"Metric Rounded Trapezoidal
    		6:163M7 × 0.75 mm5/32"Durometer 83DNot Rated40000000000000
    CM4 × 1 mm1/2"0.402"0.354"Metric Rounded Trapezoidal
    		4:144M9 × 1 mm13/64"Durometer 83DNot Rated40000000000000
    CM4 × 1 mm1/2"0.402"0.354"Metric Rounded Trapezoidal
    		8:188M9 × 1 mm13/64"Durometer 83DNot Rated100000000000000
     
    Flange Nuts—Right-Hand Thread
    Image of Product. Style D. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Metric Fast-Travel Ultra-Precision Lead Screws and Nuts, Flange Nuts—Right-Hand Thread, Style D.
    Image of Attribute. Front orientation. Contains Annotated. Metric Fast-Travel Ultra-Precision Lead Screws and Nuts, Flange Nut, Nuts, Style D.

    Style D

    Style D

    Wear-Compensating Internal O-Ring—Flange nuts with a wear-compensating internal O-ring resist backlash to keep the nuts in place and maintain a tight fit even when their threads begin to wear. They’re often used in 3D printing and robotic applications.
    Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.
    Flange
    Style
    Thread
    Size
    Lg.
    Dia.
    Wd.
    Ht.
    Thk.
    Thread Type
    Speed
    Ratio
    Bolt Circle
    Dia.
    No. of Thread
    Starts
    Travel Distance
    per Turn, mm
    Hardness
    Tensile
    Strength
    Dynamic Thrust
    Load Cap., lb.
    No. of Mounting
    Holes
    Each
    PEEK
    DM2 × 0.4 mm9/32"0.209"15/32"15/64"5/64"Metric Rounded Trapezoidal
    		2:111/32"20.75Durometer 83DNot Rated2200000000000000
    DM2 × 0.4 mm9/32"0.209"15/32"15/64"5/64"Metric Rounded Trapezoidal
    		4:111/32"41.5Durometer 83DNot Rated220000000000000
    DM2 × 0.4 mm9/32"0.209"15/32"15/64"5/64"Metric Rounded Trapezoidal
    		8:111/32"83Durometer 83DNot Rated220000000000000
    DM3 × 0.5 mm21/64"0.295"39/64"5/16"3/32"Metric Rounded Trapezoidal
    		2:115/32"21Durometer 83DNot Rated420000000000000
    DM3 × 0.5 mm21/64"0.295"39/64"5/16"3/32"Metric Rounded Trapezoidal
    		6:115/32"63Durometer 83DNot Rated420000000000000
    DM3 × 0.5 mm21/64"0.295"39/64"5/16"3/32"Metric Rounded Trapezoidal
    		12:115/32"126Durometer 83DNot Rated420000000000000
    DM4 × 1 mm13/32"0.354"3/4"13/32"1/8"Metric Rounded Trapezoidal
    		4:119/32"44Durometer 83DNot Rated1020000000000000
    DM4 × 1 mm13/32"0.354"3/4"13/32"1/8"Metric Rounded Trapezoidal
    		8:119/32"88Durometer 83DNot Rated1020000000000000
     
    PEEK with Wear-Compensating Internal O-Ring
    DM2 × 0.4 mm5/16"0.228"15/32"15/64"5/64"Metric Rounded Trapezoidal
    		2:111/32"20.75Durometer 83DNot Rated120000000000000
    DM2 × 0.4 mm5/16"0.228"15/32"15/64"5/64"Metric Rounded Trapezoidal
    		4:111/32"41.5Durometer 83DNot Rated120000000000000
    DM2 × 0.4 mm5/16"0.228"15/32"15/64"5/64"Metric Rounded Trapezoidal
    		8:111/32"83Durometer 83DNot Rated120000000000000
    DM3 × 0.5 mm25/64"0.315"39/64"5/16"3/32"Metric Rounded Trapezoidal
    		2:115/32"21Durometer 83DNot Rated220000000000000
    DM3 × 0.5 mm25/64"0.315"39/64"5/16"3/32"Metric Rounded Trapezoidal
    		6:115/32"63Durometer 83DNot Rated220000000000000
    DM3 × 0.5 mm25/64"0.315"39/64"5/16"3/32"Metric Rounded Trapezoidal
    		12:115/32"126Durometer 83DNot Rated220000000000000
    DM4 × 1 mm31/64"0.406"3/4"13/32"1/8"Metric Rounded Trapezoidal
    		4:119/32"44Durometer 83DNot Rated420000000000000
    DM4 × 1 mm31/64"0.406"3/4"13/32"1/8"Metric Rounded Trapezoidal
    		8:119/32"88Durometer 83DNot Rated420000000000000
     

    Metric Ultra-Precision Lead Screws and Nuts

    Image of ProductInUse. Front orientation. Contains Inset. Precision Lead Screws and Nuts. Metric Ultra-Precision Lead Screws and Nuts.
    Image of Product. Style B. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Metric Ultra-Precision Lead Screws and Nuts, Externally Threaded Nuts—Right-Hand Thread, Style B.
    Image of Product. Style C. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Metric Ultra-Precision Lead Screws and Nuts, Flange Nuts—Right-Hand Thread, Style C.

    Style B

    Style C

    Operating with less backlash (play) than Metric Precision Acme Lead Screws and Nuts, these provide increased nut life and more reliable movement in automated systems. Also known as single-start and self-locking lead screws and nuts, they have a single thread that runs the length of the screw. The nut travels only when the screw turns, so your system won't unexpectedly move when the lead screw is at rest. To ensure compatibility, select components that have the same thread size, thread type, thread size, thread pitch, and number of thread starts.
    Externally Threaded Nuts—Right-Hand Thread
    Image of Product. Style B. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Metric Ultra-Precision Lead Screws and Nuts, Externally Threaded Nuts—Right-Hand Thread, Style B.

    Style B

    Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.
    External
    Thread
    Style
    Thread
    Size
    Lg.
    Wd.
    Ht.
    Thread Type
    Speed
    Ratio
    No. of Thread
    Starts
    Travel Distance
    per Turn, mm
    Size
    Lg.
    Hardness
    Tensile
    Strength
    Dynamic Thrust
    Load Cap., lb.
    Each
    PEEK
    BM2 × 0.4 mm5/16"0.22"0.197"Metric Rounded Trapezoidal
    		1:110.375M5 × 0.8 mm9/64"Durometer 83DNot Rated2000000000000000
    BM3 × 0.5 mm13/32"0.311"0.276"Metric Rounded Trapezoidal
    		1:110.5M7 × 0.75 mm5/32"Durometer 83DNot Rated500000000000000
    BM4 × 1 mm1/2"0.402"0.354"Metric Rounded Trapezoidal
    		1:111M9 × 1 mm13/64"Durometer 83DNot Rated1000000000000000
     
    Flange Nuts—Right-Hand Thread
    Image of Product. Style C. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Metric Ultra-Precision Lead Screws and Nuts, Flange Nuts—Right-Hand Thread, Style C.
    Image of Attribute. Front orientation. Contains Annotated. Metric Ultra-Precision Lead Screws and Nuts, Flange Nut, Nuts, Style C.

    Style C

    Style C

    Wear-Compensating Internal O-Ring—Flange nuts with wear-compensating internal O-ring maintain a tight fit even when their threads begin to wear. They resist backlash to maintain accuracy over time, which is important in positioning applications such as 3D printing and robotics.
    Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.
    Flange
    Style
    Thread
    Size
    Lg.
    Dia.
    Wd.
    Ht.
    Thk.
    Thread Type
    Speed
    Ratio
    Bolt Circle
    Dia.
    No. of Thread
    Starts
    Travel Distance
    per Turn, mm
    Hardness
    Tensile
    Strength
    Dynamic Thrust
    Load Cap., lb.
    No. of Mounting
    Holes
    Each
    PEEK
    CM2 × 0.4 mm9/32"0.209"15/32"15/64"5/64"Metric Rounded Trapezoidal
    		1:111/32"10.375Durometer 83DNot Rated22000000000000000
    CM3 × 0.5 mm21/64"0.295"39/64"5/16"3/32"Metric Rounded Trapezoidal
    		1:115/32"10.5Durometer 83DNot Rated5200000000000000
    CM4 × 1 mm13/32"0.354"3/4"13/32"1/8"Metric Rounded Trapezoidal
    		1:119/32"11Durometer 83DNot Rated10200000000000000
     
    PEEK with Wear-Compensating Internal O-Ring
    CM2 × 0.4 mm5/16"0.228"15/32"15/64"5/64"Metric Rounded Trapezoidal
    		1:111/32"10.375Durometer 83DNot Rated12000000000000000
    CM3 × 0.5 mm25/64"0.315"39/64"5/16"3/32"Metric Rounded Trapezoidal
    		1:115/32"10.5Durometer 83DNot Rated22000000000000000
    CM4 × 1 mm31/64"0.406"3/4"13/32"1/8"Metric Rounded Trapezoidal
    		1:119/32"11Durometer 83DNot Rated52000000000000000
     
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