McMaster-Carr logo
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    12 Products

    Top-Lock Distorted-Thread Locknuts

    Image of Product. Front orientation. Locknuts. Top-Lock Distorted-Thread Locknuts.
    Irregularly shaped threads at the top of these locknuts grip the screw for a stronger hold than nylon-insert locknuts. Although the threads prevent the nut from backing out due to vibration, they also increase the effort to install and remove. To get these nuts off, you may need special tools, such as an impact wrench or propane torch. Nuts are not reusable.
    Corrosion-Resistant Stainless Steel
    18-8 Stainless Steel—The choice for wet and outdoor environments, these locknuts resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Thread Size
    Wd.,
    mm
    Ht.,
    mm
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    M4 × 0.7 mm73.2DIN 980, ISO 70422590045A111000000
    M5 × 0.8 mm84DIN 980, ISO 70422590045A11200000
    M6 × 1 mm106DIN 980, ISO 70421090045A1130000
    M7 × 1 mm115.5DIN 980, ISO 7042590045A11400000
    M8 × 1 mm136.4DIN 980, ISO 7042590045A11600000
    M8 × 1.25 mm136.4DIN 980, ISO 70421090045A11500000
    M10 × 1.25 mm1710DIN 980, ISO 7042190045A1190000
    M10 × 1.5 mm178DIN 980, ISO 7042590045A11700000
    M12 × 1.75 mm1912DIN 980, ISO 7042190045A1210000
    M14 × 2 mm2214DIN 980, ISO 7042190045A1240000
    M16 × 1.5 mm2416DIN 980, ISO 7042190045A12700000
    M16 × 2 mm2416DIN 980, ISO 7042190045A12600000
     
    back to top