McMaster-Carr logo
    Filter by
    System of Measurement
    Nut Type
    Industrial Info Compare
    Thread Pitch
    Industrial Info Snippet
    Attribute Image
    Face Style
    Spanner Wrench Style
    Locking Type
    Thread Type
    DFARS Specialty Metals
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Thread Spacing
    Industrial Info Snippet
    For Lock Washer Specifications Met
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Material
    Insert Maximum Temperature
    Specifications Met
    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)
    3 Products

    Bearing Locknuts

    Image of System. Front orientation. Contains Annotated. Bearing Nuts. Bearing Locknuts.
    Image of Product. Carbon Steel. Front orientation. Bearing Nuts. Bearing Locknuts, Chamfered Face, Carbon Steel.

    Carbon Steel

    With a nylon insert that grips your threaded shaft or spindle without damaging its threads, these locknuts—also called shaft nuts—hold bearings, bushings, gears, and pulleys prone to vibration tightly in place. They come as one piece, so you can easily clamp them onto your shaft or spindle. But, since they aren’t made entirely of metal, they don’t stand up to heat as well as all-metal locknuts. Slots in their sides mean you can tighten and loosen them with a spanner wrench or spanner socket. Their face is also chamfered to help keep the size and weight of your assembly at a minimum. All meet international standards for bearing locknut dimensions.
    Zinc-Plated Carbon Steel—Zinc-plated carbon steel locknuts resist rusting from some moisture, but you shouldn’t use them with salt water or chemicals. They are strong and resist wear, though they don’t stand up to corrosion as well as 303 stainless steel locknuts.
    Thread Spacing—When choosing your thread spacing, consider the precision of your application. The finer the threads, the more control you have when making adjustments.
    Thread
    Zinc-Plated
    Carbon Steel
    Size
    Spacing
    OD,
    mm
    Wd.,
    mm
    Insert Max.
    Temp., ° F
    Each
    Chamfered Face
    M90 × 2 mmExtra Fine
    		12017.52103552N550000000
     

    Bearing Nuts

    Image of Product. Front orientation. Bearing Nuts. Bearing Nuts, Carbon Steel, Chamfered Face.

    Carbon Steel

    Chamfered Face

    Often paired with spring lock washers to strengthen their hold, these bearing nuts—also known as shaft nuts—keep vibration from shifting bearings, bushings, pulleys, and gears on your threaded shaft or spindle. They have slotted sides, so you can tighten and loosen them with a spanner wrench or spanner socket.
    Carbon Steel—Carbon steel bearing nuts are strong and resist wear.
    Chamfered Face—Chamfered-face bearing nuts weigh less and produce less heat than stepped-face nuts.
    ISO 2982— Some chamfered-face bearing nuts meet ISO 2982 (formerly DIN 981), an international standard for bearing locknut dimensions. Their sizes correspond to SKF KM series. Use them with DIN 5406 spring lock washers.
    Thread Spacing—When choosing your thread spacing, consider the precision of your application. The finer the threads, the more control you have when making adjustments.
    Nuts
    Bearing
    Lock Washers
    Thread
    Size
    Spacing
    OD,
    mm
    Wd.,
    mm
    Specs. Met
    For Lock Washer
    Specs. Met
    Each
    Each
    Carbon Steel
     
    Chamfered Face
    M90 × 2 mmExtra Fine
    		12016DIN 981, ISO 2982DIN 54063554N3100000090391A131000000
     
    back to top