McMaster-Carr logo
    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

    Machine Key Stock

    Image of Product. Front orientation. Machine Key Stock. Machine Key Stock.
    Cut this square or rectangular key stock to length to create a straight machine key. Straight keys are the most common type of key. Machine keys are often the same material as the shaft and other components with which they are used. To use a key as a sacrificial part, choose a softer key that will shear off when parts are exposed to excessive force, preventing damage to expensive equipment.
    1008-1045 Carbon Steel
    1008-1045 carbon steel key stock is an economical choice with good strength.
    Oversized Tolerance—Slightly larger than the size listed in the table, oversized stock fits tightly in a keyway. Press it into place for use in high-torque applications or to replace a key in a worn keyway.
    Tolerance
    Ht. × Wd.
    Tolerance
    Rating
    Ht.
    Wd.
    Min.
    Hardness
    Each
    12" Long
    9/32" × 9/32"Oversized0.000" to 0.002"0.000" to 0.002"Rockwell B5098830A22500000
     
    36" Long
    9/32" × 9/32"Oversized0.000" to 0.002"0.000" to 0.002"Rockwell B5098830A8540000
     
    Zinc-Plated 1008-1045 Carbon Steel
    Zinc-plated 1008-1045 carbon steel key stock is an economical choice with good strength and resists corrosion in wet environments.
    Oversized Tolerance—Slightly larger than the size listed in the table, oversized stock fits tightly in a keyway. Press it into place for use in high-torque applications or to replace a key in a worn keyway.
    Tolerance
    Ht. × Wd.
    Tolerance
    Rating
    Ht.
    Wd.
    Min.
    Hardness
    Each
    12" Long
    9/32" × 9/32"Oversized0.000" to 0.003"0.000" to 0.003"Rockwell B5098491A14300000
     
    back to top