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    22 Products

    Weld Nut Shape

    Weld Nut Shape

    Nut Type

    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.
    Collar
    Thread
    Size
    Wd.
    Ht.
    Dia.
    Ht.
    For Hole
    Dia.
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Steel
    7/16"-20
    		3/4"21/64"21/32"0.05"43/64"ASME B1.125000000000000000
    7/16"-20
    		3/4"21/64"21/32"0.085"43/64"ASME B1.11000000000000000
     

    Tube End Weld Nuts

    Image of Product. Bottom orientation. Weld Nuts. Tube End Weld Nuts.
    Image of Product. Bottom orientation. Weld Nuts. Tube End Weld Nuts.
    Weld these nuts into tube ends to attach threaded fittings such as rod ends. The welded connection is stronger than tapping a tube directly. These nuts are often used to link control arms and suspensions. Also known as tube adapters and weldable threaded tube ends.
    For Tube
    Wall Thk.
    Thread
    Size
    Ht.
    Threading
    Thread
    Lg.
    Each
    4130 Alloy Steel
     
    For 5/8" OD Tubes
    0.058"7/16"-20
    		1"Fully Threaded1"00000000000000
     
    For 3/4" OD Tubes
    0.058"7/16"-20
    		1"Fully Threaded1"0000000000000
    0.065"7/16"-20
    		1 3/8"Partially Threaded1 1/8"0000000000000
     
    For 7/8" OD Tubes
    0.058"7/16"-20
    		1 3/8"Partially Threaded1 1/8"0000000000000
    0.065"7/16"-20
    		1 3/8"Partially Threaded1"0000000000000
    0.083"7/16"-20
    		1 1/2"Partially Threaded1 1/8"0000000000000
     
    For 1" OD Tubes
    0.058"7/16"-20
    		1 1/2"Partially Threaded1"0000000000000
    0.065"7/16"-20
    		1 1/2"Partially Threaded1"0000000000000
    0.083"7/16"-20
    		1 1/2"Partially Threaded1"0000000000000
    0.095"7/16"-20
    		1 1/2"Partially Threaded1"0000000000000
     

    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.
    Collar
    Thread
    Size
    Wd.
    Ht.
    Dia.
    Ht.
    For Hole
    Dia.
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Steel
    7/16"-20
    		3/4"5/16"21/32"0.062"43/64"ASME B1.110000000000000000
    7/16"-20
    		3/4"5/16"21/32"0.063"43/64"ASME B1.12500000000000000
     

    Left-Hand-Thread Tube End Weld Nuts

    Image of Product. Bottom orientation. Weld Nuts. Left-Hand-Thread Tube End Weld Nuts.
    Image of Product. Bottom orientation. Weld Nuts. Left-Hand-Thread Tube End Weld Nuts.
    These weld nuts prevent fasteners from backing out of assemblies that rotate counterclockwise. Their left-hand threads pair with left-hand screws and rods to stop the fastener from loosening as the assembly turns. Weld them to the end of a tube for a stronger connection than tapping the tube directly. Also known as tube adapters and weldable threaded tube ends.
    For Tube
    Wall Thk.
    Thread
    Size
    Ht.
    Threading
    Thread
    Lg.
    Each
    4130 Alloy Steel
     
    For 5/8" OD Tubes
    0.058"7/16"-20
    		1"Fully Threaded1"00000000000000
     
    For 3/4" OD Tubes
    0.058"7/16"-20
    		1"Fully Threaded1"0000000000000
    0.065"7/16"-20
    		1 3/8"Partially Threaded1 1/8"0000000000000
     
    For 7/8" OD Tubes
    0.058"7/16"-20
    		1 3/8"Partially Threaded1 1/8"0000000000000
    0.065"7/16"-20
    		1 3/8"Partially Threaded1"0000000000000
    0.083"7/16"-20
    		1 1/2"Partially Threaded1 1/8"0000000000000
     
    For 1" OD Tubes
    0.065"7/16"-20
    		1 1/2"Partially Threaded1"0000000000000
    0.095"7/16"-20
    		1 1/2"Partially Threaded1"0000000000000
     
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