McMaster-Carr logo
    Filter by
    Thread Size
    Industrial Info Compare
    Nut Type
    Industrial Info Compare
    Flange Thickness
    Attribute Image
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    DFARS Specialty Metals
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    4 Products

    Thread-Repairing Flange Nuts

    Image of Product. Bottom orientation. Flange Nuts. Thread-Repairing Flange Nuts.
    Clean and reshape damaged threads while fastening parts together. Similar to a die, these nuts cut through rust, residue, and weld spatter as they screw on and off to ensure strong connections and prevent sticking during assembly. They have a flange that distributes pressure evenly across the mounting surface without the need for a separate washer. Also known as collar nuts.
    High-Strength Steel
    Rated Grade 8, Grade G, or Class 10, these are about 25% stronger than medium-strength steel nuts. They are commonly used to fasten components in valves, pumps, and motors. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.
    Zinc-Flake-Coated Steel—The most durable zinc coating, zinc flake is a multilayer finish that resists wear for long-term rust protection. Similar to zinc yellow-chromate, it won't hold up to harsh chemicals like stainless steel can.
    Flange,
    mm
    Thread Size
    Wd.,
    mm
    Ht.,
    mm
    Dia.
    Thk.
    Fastener Strength
    Grade/Class
    Each
    Zinc-Flake-Coated Steel
    M6 × 1 mm10614.21.1Class 10
    		90456A11000000
    M8 × 1.25 mm13817.91.2Class 10
    		90456A1200000
    M10 × 1.5 mm161021.81.5Class 10
    		90456A1300000
    M12 × 1.75 mm1812261.8Class 10
    		90456A1400000
     
    back to top