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    3 Products

    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
    Image of Product. Front orientation. Machine Key Stock. Machine Key Stock.
    1008-1045 carbon steel key stock is an economical choice with good strength.
    Undersized Tolerance—Slightly smaller than the size listed in the table, undersized stock is the choice when you need a slightly looser fit or when you have an inconsistent keyway. Use it when parts need to be taken apart frequently, such as for maintenance or prototyping.
    DIN 6880—Key stock that meets DIN 6880 conforms to DIN standards for undersized keys.
    Tolerance,
    mm
    Ht. × Wd.
    Tolerance
    Rating
    Ht.
    Wd.
    Min.
    Hardness
    Specs.
    Met
    Each
    305 mm Long
    20 mm × 36 mmUndersized-0.130 to 0.000-0.062 to 0.000Rockwell B87DIN 6880000000000000000
     
    1,000 mm Long
    20 mm × 36 mmUndersized-0.130 to 0.000-0.062 to 0.000Rockwell B87DIN 6880000000000000000
     
    Zinc-Plated 1008-1045 Carbon Steel
    Image of Product. Front orientation. Machine Key Stock. Machine Key Stock.
    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,
    mm
    Ht. × Wd.
    Tolerance
    Rating
    Ht.
    Wd.
    Min.
    Hardness
    Each
    305 mm Long
    20 mm × 36 mmOversized0.000 to 0.0760.000 to 0.076Rockwell B87000000000000000
     
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