McMaster-Carr logo
    Filter by
    System of Measurement
    Weld Nut Shape
    Width
    Thread Spacing
    Industrial Info Snippet
    Thread Type
    Thread Pitch
    Industrial Info Snippet
    Attribute Image
    Specifications Met
    Hole Diameter
    Thread Direction
    Base Diameter
    Attribute Image
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Number of Projections
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    DFARS Specialty Metals
    Industrial Info Compare
    Collar Height
    Collar Diameter
    Base Thickness
    Attribute Image
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    4 Products

    Weld Nuts

    Image of Product. Top 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
    M3 × 0.5 mm7.52.454.50.554.5DIN 92910093337A400000000
     
    18-8 Stainless Steel
    M3 × 0.5 mm7.52.54.50.554.5DIN 92910093418A20000000
     

    Round Weld Nuts

    Image of Product. Bottom orientation. Weld Nuts. Round Weld Nuts.
    Image of Product. Bottom orientation. Weld Nuts. Round Weld Nuts.
    With three projections and a short collar, weld these nuts under low-clearance areas without sacrificing strength. The projections concentrate heat away from the threads to prevent them from deforming and create consistent welds. To make welding easier, their collar pilot guides them into the hole and aligns them with the surface while also shielding 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.
    18-8 Stainless Steel—Suitable for outdoor use, these nuts resist rust from water and mild chemicals. Weld them to stainless steel surfaces.
    Base,
    mm
    Collar,
    mm
    Thread
    Size
    Dia.
    Thk.
    Dia.
    Ht.
    Pkg.
    Qty.
    Pkg.
    Steel
    M3 × 0.5 mm81.54.30.82590583A29000000
     
    18-8 Stainless Steel
    M3 × 0.5 mm7.81.54.30.82590583A1900000
     
    back to top