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    101 Products

    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.
    Corrosion-Resistant Stainless Steel
    18-8 Stainless Steel—The choice for wet and outdoor environments, these nuts resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Thread
    Size
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    1/4"-32
    		7/16"7/32"100000000000000
    5/16"-32
    		1/2"17/64"10000000000000
    3/8"-32
    		9/16"21/64"10000000000000
    7/16"-28
    		11/16"3/8"10000000000000
    1/2"-28
    		3/4"7/16"100000000000000
    5/8"-24
    		15/16"35/64"100000000000000
    11/16"-24
    		1"27/64"100000000000000
    3/4"-20
    		1 1/8"41/64"100000000000000
    7/8"-20
    		1 5/16"3/4"100000000000000
     
    Lightweight Aluminum
    6061 Aluminum—One-third the weight of steel, these nuts are commonly used in robotics, automation, and other applications that have weight limitations. They're an alternative to stainless steel for rust resistance but are not as strong.
    Thread
    Size
    Wd.
    Ht.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    6061 Aluminum
    1/4"-32
    		7/16"7/32"ASME B18.2.25000000000000000
    5/16"-32
    		1/2"17/64"ASME B18.2.2500000000000000
    3/8"-32
    		9/16"21/64"ASME B18.2.2500000000000000
    7/16"-28
    		11/16"3/8"ASME B18.2.210000000000000
    1/2"-28
    		3/4"7/16"ASME B18.2.210000000000000
    5/8"-24
    		15/16"35/64"ASME B18.2.210000000000000
    3/4"-20
    		1 1/8"41/64"ASME B18.2.210000000000000
     
    Plastic
    Nylon 6/6— The most common plastic nuts, these are good for general purpose fastening. They are slippery and abrasion resistant, so they thread on smoothly and stand up to daily wear and tear. Nylon will swell and weaken when exposed to moisture, so these nuts are best for dry environments.
    Temp.,
    ° F
    Thread
    Size
    Wd.
    Ht.
    Min.
    Max.
    Choose a Color
    Pkg.
    Qty.
    Pkg.
    Nylon 6/6
    3/8"-32
    		9/16"11/32"-40185
    Black
    ,
    Off-White
    		50000000000000000
     

    Stainless Steel Hex Panel Nuts

    Image of Product. Front orientation. Panel Nuts. Stainless Steel Hex Panel Nuts.
    All of these stainless steel panel nuts have some chemical resistance. They can be fastened with a wrench for more torque while tightening than knurled panel nuts. Also known as dress nuts, they are extremely thin for use in tight spaces such as electrical panels.
    UNEF ThreadAbout UNEF Thread
    18-8 Stainless Steel—18-8 stainless steel nuts have good chemical resistance. They may be mildly magnetic.
    Black-Oxide 18-8 Stainless Steel—Black-oxide 18-8 stainless steel nuts have a dark surface color.
    316 Stainless Steel—316 stainless steel nuts have excellent chemical resistance and can be used in saltwater environments.
    Thread
    Size
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    1/4"-32
    		5/16"5/64"1000000000000000
    1/4"-32
    		3/8"3/32"100000000000000
    5/16"-32
    		3/8"3/32"10000000000000
    5/16"-32
    		7/16"7/64"1000000000000000
    5/16"-32
    		1/2"17/64"10000000000000
    3/8"-32
    		1/2"3/32"10000000000000
    3/8"-32
    		9/16"21/64"10000000000000
    3/8"-32
    		5/8"3/32"10000000000000
    7/16"-28
    		5/8"3/32"10000000000000
    7/16"-28
    		11/16"3/8"10000000000000
    15/32"-32
    		9/16"5/64"10000000000000
    15/32"-32
    		9/16"3/32"10000000000000
    15/32"-32
    		5/8"3/32"10000000000000
    15/32"-32
    		5/8"9/16"10000000000000
    1/2"-28
    		5/8"3/32"100000000000000
    1/2"-28
    		5/8"1/8"10000000000000
    11/16"-24
    		1"27/64"100000000000000
    3/4"-20
    		1"27/64"100000000000000
     
    Black-Oxide 18-8 Stainless Steel
    5/16"-32
    		7/16"7/64"500000000000000
    3/8"-32
    		1/2"3/32"10000000000000
    7/16"-28
    		5/8"3/32"10000000000000
    15/32"-32
    		5/8"9/16"10000000000000
    1/2"-28
    		5/8"3/32"100000000000000
    5/8"-24
    		15/16"3/8"100000000000000
    11/16"-24
    		1"27/64"100000000000000
    3/4"-20
    		1"27/64"100000000000000
     
    316 Stainless Steel
    1/4"-32
    		5/16"5/64"10000000000000
    5/16"-32
    		3/8"3/32"10000000000000
    3/8"-32
    		1/2"3/32"100000000000000
    7/16"-28
    		5/8"3/32"10000000000000
    15/32"-32
    		5/8"9/16"10000000000000
    1/2"-28
    		5/8"1/8"100000000000000
    5/8"-24
    		15/16"3/8"100000000000000
    11/16"-24
    		1"27/64"100000000000000
    3/4"-20
    		1"27/64"100000000000000
    7/8"-20
    		1 5/16"31/64"100000000000000
     

    Brass Hex Panel Nuts

    Image of Product. Front orientation. Panel Nuts. Brass Hex Panel Nuts.
    These panel nuts are corrosion resistant in wet environments, electrically conductive, and nonmagnetic. They can be fastened with a wrench for more torque while tightening than knurled panel nuts. Also known as dress nuts, they're extremely thin for use in tight spaces such as electrical panels.
    UNEF ThreadAbout UNEF Thread
    Nickel-Plated Brass—Nickel-plated brass panel nuts have excellent resistance to chemicals and salt water.
    Thread
    Size
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    Brass
    1/4"-32
    		5/16"5/64"1000000000000000
    1/4"-32
    		3/8"3/32"100000000000000
    5/16"-32
    		7/16"7/64"100000000000000
    3/8"-32
    		5/8"3/32"10000000000000
    7/16"-28
    		5/8"3/32"10000000000000
    15/32"-32
    		5/8"3/32"10000000000000
     
    Nickel-Plated Brass
    1/4"-32
    		5/16"5/64"100000000000000
    1/4"-32
    		3/8"3/32"100000000000000
    5/16"-32
    		7/16"7/64"100000000000000
    3/8"-32
    		1/2"3/32"100000000000000
    7/16"-28
    		5/8"3/32"10000000000000
    15/32"-32
    		9/16"5/64"100000000000000
    15/32"-32
    		9/16"3/32"100000000000000
    1/2"-28
    		5/8"1/8"100000000000000
     

    Steel Hex Panel Nuts

    Image of Product. Front orientation. Panel Nuts. Steel Hex Panel Nuts.
    Fasten these panel nuts with a wrench for more torque while tightening than knurled panel nuts. Also known as dress nuts, they're extremely thin for use in tight spaces such as electrical panels.
    UNEF ThreadAbout UNEF Thread
    Zinc-Plated Steel—Zinc-plated steel nuts resist corrosion in wet environments.
    Black-Oxide Steel—Black-oxide steel nuts have a dark surface color.
    Thread
    Size
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    1/4"-32
    		5/16"5/64"1000000000000000
    1/4"-32
    		3/8"3/32"100000000000000
    5/16"-32
    		7/16"7/64"100000000000000
    3/8"-32
    		5/8"3/32"10000000000000
    7/16"-28
    		5/8"3/32"10000000000000
    15/32"-32
    		9/16"5/64"10000000000000
    15/32"-32
    		5/8"3/32"10000000000000
    15/32"-32
    		5/8"9/16"10000000000000
    1/2"-28
    		5/8"3/32"10000000000000
     
    Black-Oxide Steel
    3/8"-32
    		1/2"3/32"10000000000000
    7/16"-28
    		5/8"3/32"10000000000000
    1/2"-28
    		5/8"3/32"10000000000000
    1/2"-28
    		5/8"1/8"10000000000000
    1/2"-28
    		3/4"3/8"100000000000000
    5/8"-24
    		15/16"3/8"100000000000000
    11/16"-24
    		1"27/64"100000000000000
    3/4"-20
    		1"27/64"100000000000000
    7/8"-20
    		1 5/16"31/64"100000000000000
     

    Thin-Profile Hex Nuts

    Image of Product. Front orientation. Hex Nuts. Thin-Profile Hex Nuts.
    About half the height of standard-profile nuts, these fit in spaces with low clearance. You can also use them as jam nuts by threading them against another hex nut to hold it in place.
    Corrosion-Resistant Stainless Steel
    18-8 Stainless Steel—The choice for wet and outdoor environments, these nuts resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Thread
    Size
    Wd.
    Ht.
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    1/2"-28
    		3/4"5/16"1000000000000000
    5/8"-24
    		15/16"3/8"100000000000000
    3/4"-20
    		1 1/8"27/64"100000000000000
    7/8"-20
    		1 5/16"31/64"100000000000000
     

    Round Coupling Nuts

    Image of Product. Front orientation. Coupling Nuts. Round Coupling Nuts.
    Less bulky than hex coupling nuts, these have a smooth, round body that fits in tight spots. Their finished appearance makes them a common choice for decorative applications. Tighten by hand, or use soft-jaw pliers to avoid marring the outside surface. Also known as extension nuts, they are commonly used to connect lengths of threaded rod and join threaded parts.
    Steel
    Black-Oxide Steel—A dark, matte coating creates a finished look. Nuts offer minimal corrosion resistance, so they're best for dry environments.
    Each
    Thread
    Size
    Lg.
    OD
    Threading
    Specs.
    Met
    1-9
    10-Up
    Black-Oxide Steel
    1/2"-28
    		1 1/4"37/64"Fully ThreadedASTM A108000000000000000000000
     
    Corrosion-Resistant Stainless Steel
    18-8 Stainless Steel—The choice for wet and outdoor environments, these nuts resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Each
    Thread
    Size
    Lg.
    OD
    Threading
    Specs.
    Met
    1-9
    10-Up
    18-8 Stainless Steel
    3/8"-32
    		1"31/64"Fully ThreadedASTM A582000000000000000000000
     

    Steel Round Knurled-Head-Grip Panel Nuts

    Image of Product. Front orientation. Panel Nuts. Steel Round Knurled-Head-Grip Panel Nuts.
    These panel nuts are knurled to provide a secure grip for tightening and loosening by hand. Also known as dress nuts, they're extremely thin for use in tight spaces such as electrical panels. They're zinc plated to resist corrosion in wet environments.
    UNEF ThreadAbout UNEF Thread
    Thread
    Size
    Dia.
    Ht.
    Each
    Zinc-Plated Steel
    3/8"-32
    		5/8"3/32"00000000000000
    15/32"-32
    		5/8"3/32"0000000000000
     

    Left-Hand-Thread Thin-Profile Hex Nuts

    These nuts tighten when turned to the left. Use them with left-hand rods and screws to prevent counterclockwise-moving parts from loosening. About half the height of standard-profile nuts, these fit in spaces with low clearance. You can also use them as jam nuts by threading them against another hex nut to hold it in place.
    Low-Strength Steel
    Image of Product. Front orientation. Contains Annotated, MultipleImages. Hex Nuts. Left-Hand-Thread Thin-Profile Hex Nuts.
    Rated Grade 2, Class 6, or lower, these nuts are about half as strong as medium-strength nuts. They are suitable for light duty fastening applications, such as securing access panels. Use them with screws that have a similar strength rating to avoid stripping threads during installation.
    Black-Oxide Steel—Typically chosen for their appearance, these nuts have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
    Thread
    Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Black-Oxide Steel
    7/8"-20
    		1 5/16"31/64"SAE Grade 2
    		ASTM A1081000000000000000
     
    Corrosion-Resistant Stainless Steel
    Image of Product. Front orientation. Contains Annotated, MultipleImages. Hex Nuts. Left-Hand-Thread Thin-Profile Hex Nuts.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these nuts resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Thread
    Size
    Wd.
    Ht.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    7/8"-20
    		1 5/16"31/64"ASME B18.2.21000000000000000
     

    Ball Screws and Nuts

    Image of ProductInUse. Front orientation. Contains Inset. Ball Screws and Nuts. Ball Screws and Nuts .
    Image of Product. A. Front orientation. Contains Annotated. Ball Screws and Nuts. Ball Screws and Nuts , Ball Nuts, Externally Threaded Nut, Style A.
    Image of Product. Front orientation. Contains Annotated. Ball Screws and Nuts. Ball Screws and Nuts , Ball Nuts, Externally Threaded Nut, Style B.

    A

    Ball Nuts,

    Externally Threaded

    Nut, Style B

    Internal ball bearings provide smooth low-friction travel in applications that require high speeds, accurate positioning, and repeatable movement. Also known as single-start ball screws and nuts, they have a single thread that runs the length of the screw. They operate with more torque than fast-travel ball screws and nuts. To ensure compatibility, select components that have the same thread direction and size. Ball nuts are furnished with a tube to keep ball bearings in place. Do not remove the tube until you are ready to install the nuts onto the screws.
    Externally Threaded Ball Nuts—Right-Hand Threaded
    Image of Product. A. Front orientation. Contains Annotated. Ball Screws and Nuts. Ball Screws and Nuts , Ball Nuts, Externally Threaded Nut, Style A.
    Image of Product. Front orientation. Contains Annotated. Ball Screws and Nuts. Ball Screws and Nuts , Ball Nuts, Externally Threaded Nut, Style B.

    A

    Style B

    Black-Oxide Alloy Steel—Black-oxide alloy steel ball nuts have mild corrosion resistance.
    Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a ball nut moves with one revolution of the ball screw.
    Way Wipers—Secure a way wiper on the end of a ball nut to sweep chips and other contaminants out of the way as it moves across the ball screw.
    Ball Screw Nuts
    Way Wipers
    Style
    Thread
    Size
    Lg.
    Wd.
    Ht.
    Dia.
    No. of Thread
    Starts
    Travel Distance
    per Turn
    External Thread
    Size
    Hardness
    Dynamic Thrust
    Load Cap., lb.
    Max.
    Backlash
    Temp. Range,
    ° F
    Each
    Each
    Black-Oxide Alloy Steel
    A3/4"-5
    		2 7/8"——1 1/4"10.2"1 1/8"-18
    		Rockwell C561,9000.015"-65 to 3000000000000000000000000000000
    B1"-4
    		2 11/32"1 1/2"1 1/2"—10.25"1 9/16"-18Rockwell C561,6250.015"-65 to 30000000000000000———0
     
    Externally Threaded Ball Nuts—Left-Hand Threaded
    Image of Product. A. Front orientation. Contains Annotated. Ball Screws and Nuts. Ball Screws and Nuts , Externally Threaded Nut, Ball Nuts, Style A.

    A

    Black-Oxide Alloy Steel—Black-oxide alloy steel ball nuts have mild corrosion resistance.
    Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a ball nut moves with one revolution of the ball screw.
    Style
    Thread
    Size
    Lg.
    Wd.
    Ht.
    No. of Thread
    Starts
    Travel Distance
    per Turn
    External Thread
    Size
    Hardness
    Dynamic Thrust
    Load Cap., lb.
    Max.
    Backlash
    Temp. Range,
    ° F
    Each
    Black-Oxide Alloy Steel
    A1"-4
    		2 11/32"1 1/2"1 1/2"10.25"1 9/16"-18Rockwell C561,6200.015"-65 to 300000000000000000
     

    Fast-Travel Ball Screws and Nuts

    Image of ProductInUse. Front orientation. Contains Inset. Ball Screws and Nuts. Fast-Travel Ball Screws and Nuts.
    Image of Product. Front orientation. Contains Annotated. Ball Screws and Nuts. Fast-Travel Ball Screws and Nuts, Ball Nuts, Externally Threaded Nut, Style C.
    Image of Product. Front orientation. Contains Annotated. Ball Screws and Nuts. Fast-Travel Ball Screws and Nuts, Ball Nuts, Externally Threaded Nut, Style D.

    Ball Nuts,

    Externally

    Threaded Nut,

    Style C

    Ball Nuts,

    Externally

    Threaded Nut,

    Style D

    Multiple thread channels (also known as thread starts) create faster linear travel than ball screws with a single thread start. Internal ball bearings provide smooth low-friction travel in applications that require high speeds, accurate positioning, and repeatable movement. To ensure compatibility, select components that have the same thread size and number of thread starts. Ball nuts are furnished with a tube to keep ball bearings in place. Do not remove the tube until you are ready to install the nuts onto the screws.
    Externally Threaded Ball Nuts—Right-Hand Threaded
    Image of Product. Front orientation. Contains Annotated. Ball Screws and Nuts. Fast-Travel Ball Screws and Nuts, Ball Nuts, Externally Threaded Nut, Style C.
    Image of Product. Front orientation. Contains Annotated. Ball Screws and Nuts. Fast-Travel Ball Screws and Nuts, Ball Nuts, Externally Threaded Nut, Style D.

    Style C

    Style D

    Black-Oxide Alloy Steel—Black-oxide alloy steel ball nuts have mild corrosion resistance.
    Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a ball nut moves with one revolution of the ball screw.
    Style
    Thread
    Size
    Lg.
    Wd.
    Ht.
    Dia.
    No. of Thread
    Starts
    Travel Distance
    per Turn
    External Thread
    Size
    Hardness
    Dynamic Thrust
    Load Cap., lb.
    Max.
    Backlash
    Temp. Range,
    ° F
    Each
    Black-Oxide Alloy Steel
    C1"-4
    		3 1/8"——1 11/16"20.5"1 9/16"-18Rockwell C564,2500.015"-65 to 300000000000000000
    D1"-4
    		3"1 1/2"1 1/2"—41"1 9/16"-18Rockwell C562,3000.015"-65 to 30000000000000000
     
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