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    24 Products

    T-Slot Nuts

    Slide into T-slot tracks on machine tool tables to secure clamps and workpieces. These nuts are often paired with setup studs for adjustable fixtures.
    Metric
    Image of Product. Front orientation. Contains Annotated. T-Slot Nuts.
    7075 Aluminum—Won’t scratch or wear down aluminum T-slot tracks. These nuts have a steel insert for strength, extending their life.
    Black-Oxide Steel—Create a finished look with a dark, matte coating. These nuts offer minimal corrosion resistance, so they're best for dry environments.
    18-8 Stainless Steel—Stainless steel nuts have excellent corrosion resistance. They are a good choice for use with stainless steel parts or in EDM applications.
    Fully Threaded—Fully threaded nuts allow a stud to extend beyond the bottom of the nut.
    Partially Threaded—Partially threaded nuts keep studs from traveling past the bottom of the nut and damaging your table.
    DIN 508—Nuts meet DIN dimensional and material requirements. Slide them into DIN 650 T-slots.
    Base,
    mm
    Fully Threaded
    Partially
    Threaded
    For Slot
    Wd., mm
    Thread
    Size
    Lg.
    Wd.
    Ht.
    Overall
    Ht., mm
    Specs.
    Met
    Each
    Each
    Black-Oxide Steel
    18M16 × 2 mm28281020DIN 50890510A11500000———0
    18M16 × 2 mm32291119—90510A219000090974A12100000
    20M16 × 2 mm38321425—90510A221000090974A1220000
    22M16 × 2 mm35351428—90510A32200000———0
    24M16 × 2 mm40401632—90510A32400000———0
    28M16 × 2 mm44441836—90510A32600000———0
     
    18-8 Stainless Steel
    18M16 × 2 mm28281020DIN 50890510A24800000———0
     
    7075 Aluminum with Steel Insert
    22M16 × 2 mm35351428DIN 50891136A19100000———0
     

    Strong-Hold T-Slot Nuts

    Image of Attribute. Front orientation. Contains Annotated. T-Slot Nuts. Strong-Hold T-Slot Nuts.
    After sliding the nut into a T-slot track, tighten the set screw to keep it in place. Use these nuts to secure clamps and workpieces in a machine table.
    Metric
    Black-Oxide Steel—Create a finished look with a dark, matte coating. These nuts offer minimal corrosion resistance, so they're best for dry environments.
    Fully Threaded—Fully threaded nuts allow a stud to extend beyond the bottom of the nut.
    Base,
    mm
    Drive
    Fully Threaded
    For Slot
    Wd., mm
    Thread
    Size
    Lg.
    Wd.
    Ht.
    Overall
    Ht., mm
    Size,
    mm
    Style
    Includes
    Each
    Black-Oxide Steel
    20M16 × 2 mm39.231.812.631.86Hex
    		Set Screw84865A805000000
    22M16 × 2 mm44.334.912.541.36Hex
    		Set Screw84865A81400000
     

    Lathe Chuck Jaw Nuts

    Secure jaws to a CNC lathe chuck with industry standard 1.5 mm × 60° serrations or wider 3 mm × 60° serrations.
    Jaw Nuts with Metric Threads
    Image of Product. Front orientation. Contains Annotated. Lathe Chuck Jaw Nuts.
    M16 Threads—Jaw nuts with M6, M8, M10, M12, M16, and M20 threads fit most chucks made by Kitagawa, LMC, Samchully, Seoam, Auto Strong, and other brands.
    Base
    For Lathe
    Chuck Dia.
    For Slot
    Wd.
    Thread
    Size
    Ht.
    Lg.
    Wd.
    Overall
    Ht.
    For Serration
    Size
    Mounting Hole
    Ctr.-to-Ctr.
    Material
    Each
    12"0.827"M16 × 2 mm29/64"2 9/16"1 5/32"1 3/32"1.5 mm × 60°1.181"Steel3228N14000000

    Drop-In T-Slot Nuts

    Image of Product. Front orientation. Contains Annotated. T-Slot Nuts. Drop-In T-Slot Nuts.
    Mount clamps and other fixtures to machine tool tables anywhere along the length of your T-slot track. These nuts install from the top and secure with a quarter turn, so you don’t have to slide them down the track’s length. They’re often paired with setup studs for adjustable fixtures. Also known as quarter-turn T-slot nuts.
    Metric
    Black-Oxide Steel—Create a finished look with a dark, matte coating. These nuts offer minimal corrosion resistance, so they're best for dry environments.
    Fully Threaded—Fully threaded nuts allow a stud to extend beyond the bottom of the nut.
    Base,
    mm
    Fully Threaded
    For Slot
    Wd., mm
    Thread
    Size
    Lg.
    Wd.
    Ht.
    Overall
    Ht., mm
    Each
    Black-Oxide Steel
    18M16 × 2 mm2817.6102090799A216000000
    20M16 × 2 mm3919.7122490799A61400000
     

    Weld Nuts

    Image of Product. Bottom orientation. Weld Nuts. Weld Nuts.
    Image of Product. Bottom orientation. Weld Nuts. Weld Nuts.
    Add permanent threads to thin metal with our go-to weld nuts. Unlike press-fit and rivet nuts, these nuts fuse to the base metal, so they won’t twist and pull out. Three evenly spaced projections concentrate heat away from the threads to prevent them from deforming and create consistent welds. All have a collar pilot that guides the nut into the hole, holds it in place while welding, and protects the threads from weld spatter. You can also install them on thick pieces of metal.
    Steel—Best for dry environments since moisture will cause them to rust. Made of uncoated steel, these nuts require minimal prep. Weld them to uncoated steel surfaces.
    18-8 Stainless Steel—Suitable for outdoor use, these nuts resist rust from water and mild chemicals. Weld them to stainless steel surfaces.
    Collar,
    mm
    Thread
    Size
    Wd.,
    mm
    Ht.,
    mm
    Dia.
    Ht.
    For Hole
    Dia., mm
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Steel
    M16 × 2 mm2411.218.81.818.8DIN 9291093337A900000000
     
    18-8 Stainless Steel
    M16 × 2 mm2411.218.81.818.8DIN 929193418A90000000
     

    T-Slot Fastener and Setup Stud Kits

    Image of Product. Front orientation. Fixture Kits. T-Slot Fastener and Setup Stud Kits.
    Image of Attribute. Front orientation. Contains Annotated. T-Slot Fastener and Setup Stud Kits.
    For mounting items to your machine table, these kits contain the full system of necessary components. Choose the kit with slot width matching that of your table.
    Each kit includes T-slot nuts, setup studs, flange nuts, coupling nuts, and a T-slot cleaning tool.
    T-Slot Nut
    Setup Stud
    For Slot
    Wd., mm
    No. of
    Pieces
    Includes
    Threading
    Base Ht.,
    mm
    Base Wd.,
    mm
    Overall
    Ht., mm
    Threading
    Min. Tensile
    Strength, psi
    Material
    Each
    M16 × 2 mm
    18374 T-Slot Nuts
    4 Setup Studs each in 80 mm, 110 mm, 150 mm, 175 mm, 200 mm, and 250 mm Lengths
    4 Flange Nuts
    4 Coupling Nuts
    1 T-Slot Cleaner    		Partially Threaded112919Threaded on Both Ends125,000Black-Oxide Steel3396A460000000
    20374 T-Slot Nuts
    4 Setup Studs each in 80 mm, 110 mm, 150 mm, 175 mm, 200 mm, and 250 mm Lengths
    4 Flange Nuts
    4 Coupling Nuts
    1 T-Slot Cleaner    		Partially Threaded143225Threaded on Both Ends125,000Black-Oxide Steel3396A39000000
     

    Setup Clamp and T-Slot Fastener Kits

    Image of Product. Metal Wall-Mount Rack. Front orientation. Fixture Kits. Setup Clamp and T-Slot Fastener Kits, Metal Wall-Mount Rack.

    Metal Wall-Mount Rack

    Get everything needed for basic workholding on a machine table. Select a kit that matches your table's slot width. Each kit includes studs, setup clamps, step blocks, T-slot nuts, flange nuts, coupling nuts, and a T-slot cleaning tool.
    Step
    Block, mm
    For Slot
    Wd., mm
    No. of
    Pieces
    Includes
    Ht.
    Range
    Wd.
    T-Slot Nut
    Base Wd., mm
    Material
    Container Type
    Each
    M16 × 2 mm
    18534 Coupling Nuts
    3 Step Block Pairs
    6 Flange Nuts
    6 Step Setup Clamps (2 each in 64 mm, 102 mm, and 152 mm lengths)
    6 T-Slot Nuts
    24 Studs (4 each in 80 mm, 110 mm, 150 mm, 175 mm, 200 mm, and 250 mm lengths)
    T-Slot Cleaner    		19 to 1522529SteelMetal Wall-Mount Rack8957A820000000
     

    Extra-Long T-Slot Nuts

    Image of ProductInUse. T-Slot Nut and Extra-Long T-Slot Nut Shown Installed Within Cross-Slot. Front orientation. CrossSection view. Contains Annotated, Border. T-Slot Nuts. Extra-Long T-Slot Nuts.

    T-Slot Nut and Extra-Long

    T-Slot Nut Shown Installed

    Within Cross-Slot

    Image of Product. Front orientation. Contains Annotated. T-Slot Nuts. Extra-Long T-Slot Nuts.
    With an extra-long base, these nuts carry heavier loads and grip T-slot tracks more securely than standard nuts. Use them to anchor clamps and workpieces to machine tool tables. They’re often paired with setup studs for adjustable fixtures.
    Metric
    Fully Threaded—Fully threaded nuts allow a stud to extend beyond the bottom of the nut.
    DIN 508—Nuts meet DIN dimensional and material requirements. Slide them into DIN 650 T-slots.
    Base,
    mm
    Fully Threaded
    For Slot
    Wd., mm
    Thread
    Size
    Lg.
    Wd.
    Ht.
    Overall
    Ht., mm
    Specs.
    Met
    Each
    Steel
    18M16 × 2 mm56281020DIN 50890894A191000000
     

    Spring-Loaded T-Slot Nuts

    Image of Product. Bottom orientation. Contains Annotated. T-Slot Nuts. Spring-Loaded T-Slot Nuts.
    Prevent clamps and other fixtures from accidentally shifting along your machine tool table. These nuts have a spring-loaded ball to hold them firmly inside T-slot tracks but still slide if you need to reposition them. They’re often paired with setup studs for adjustable fixtures.
    Metric
    Black-Oxide Steel—Create a finished look with a dark, matte coating. These nuts offer minimal corrosion resistance, so they're best for dry environments.
    Fully Threaded—Fully threaded nuts allow a stud to extend beyond the bottom of the nut.
    DIN 508—Nuts meet DIN dimensional and material requirements. Slide them into DIN 650 T-slots.
    Base,
    mm
    Fully Threaded
    For Slot
    Wd., mm
    Thread
    Size
    Lg.
    Wd.
    Ht.
    Overall
    Ht., mm
    Specs.
    Met
    Each
    Black-Oxide Steel
    18M16 × 2 mm28281020DIN 50897734A114000000
     

    Square Weld Nuts

    Image of Product. Bottom orientation. Weld Nuts. Square Weld Nuts.
    Image of Product. Bottom orientation. Weld Nuts. Square Weld Nuts.
    With four symmetrical projections, these nuts create the strongest hold in our offering. Unlike rectangular weld nuts, each projection is equidistant from the threads, so welds wrap evenly for extra strength and twist resistance. Projections concentrate heat away from the threads to prevent them from deforming and create consistent welds. All nuts have a collar pilot that guides them into the hole, holds them in place while welding, and protects the threads from weld spatter.
    Steel—Best for dry environments since moisture will cause them to rust. Made of uncoated steel, these nuts require minimal prep. Weld them to uncoated steel surfaces.
    Thread
    Size
    Wd.,
    mm
    Ht.,
    mm
    For Hole
    Dia., mm
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Steel
    M16 × 2 mm241318.8DIN 928593975A122000000
     

    Weld Locknuts

    Image of Product. Bottom orientation. Weld Nuts. Weld Locknuts.
    Image of Product. Bottom orientation. Weld Nuts. Weld Locknuts.
    Prevent screws from backing out under heavy vibration. These nuts have distorted threads that grip screws tightly. Three evenly spaced projections concentrate heat away from the threads to prevent them from deforming and create consistent welds. These nuts also have a collar pilot that guides the nut into the hole, holds it in place while welding, and protects the threads from weld spatter.
    Use Grade 2 or Class 6 screws to avoid stripping threads during installation. Distorted threads require high torque for fastening and unfastening, so you may need an impact wrench to remove screws.
    Steel—Best for dry environments since moisture will cause them to rust. Made of uncoated steel, these nuts require minimal prep. Weld them to uncoated steel surfaces.
    Collar,
    mm
    Thread
    Size
    Wd.,
    mm
    Ht.,
    mm
    Dia.
    Ht.
    For Hole
    Dia., mm
    Pkg.
    Qty.
    Pkg.
    Steel
    M16 × 2 mm261320.61.320.6590744A13000000
     
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