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    31 Products

    Rounded Machine Keys

    Image of Product. Front orientation. Machine Keys. Rounded Machine Keys.
    When installed, these keys fill oval keyways completely, reducing stress on the key and shaft. Using them in a closed keyway keeps them from sliding along the shaft axis. The rounded ends make it easy to slide gears, hubs, and other components into place. These are also known as feather keys. 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—Steel keys are strong and easy to machine. Since steel is the most common material, these keys work in many applications. Steel keys rust when exposed to moisture, so they should only be used in dry environments.
    Undersized Tolerance—Slightly smaller than the size listed in the table, undersized keys are the choice when you need a slightly looser fit or when you have an inconsistent keyway. Use them when parts need to be taken apart frequently, such as for maintenance or prototyping. Undersized metric keys meet DIN 6885 dimensional standards.
    Tolerance,
    mm
    Lg.,
    mm
    Tolerance
    Rating
    Ht.
    Wd.
    Min.
    Hardness
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    1008-1045 Carbon Steel
     
    11 mm × 18 mm
    50Undersized-0.110 to 0.000-0.043 to 0.000Not RatedDIN 6885196717A73400000
    56Undersized-0.110 to 0.000-0.043 to 0.000Not RatedDIN 6885196717A7390000
    63Undersized-0.110 to 0.000-0.043 to 0.000Not RatedDIN 6885196717A7460000
    70Undersized-0.110 to 0.000-0.043 to 0.000Not RatedDIN 6885196717A7560000
    80Undersized-0.110 to 0.000-0.043 to 0.000Not RatedDIN 6885196717A7580000
    90Undersized-0.110 to 0.000-0.043 to 0.000Not RatedDIN 6885196717A76100000
    100Undersized-0.110 to 0.000-0.043 to 0.000Not RatedDIN 6885196717A77000000
    110Undersized-0.110 to 0.000-0.043 to 0.000Not RatedDIN 6885196717A78000000
     

    Machine Keys

    Image of Product. Front orientation. Machine Keys. Machine Keys.
    Straight keys, with a square or rectangular cross section, are the most common type of key. Install them in keyways to transmit torque from shafts to gears and other components. 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—Steel keys are strong and easy to machine. Since steel is the most common material, these keys work in many applications. Steel keys rust when exposed to moisture, so they should only be used in dry environments.
    Undersized Tolerance—Slightly smaller than the size listed in the table, undersized keys are the choice when you need a slightly looser fit or when you have an inconsistent keyway. Use them when parts need to be taken apart frequently, such as for maintenance or prototyping.
    Tolerance,
    mm
    Lg.,
    mm
    Tolerance
    Rating
    Ht.
    Wd.
    Min.
    Hardness
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    1008-1045 Carbon Steel
     
    11 mm × 18 mm
    50Undersized-0.110 to 0.000-0.043 to 0.000Not RatedDIN 6885198870A85100000
    70Undersized-0.110 to 0.000-0.043 to 0.000Not RatedDIN 6885198870A8540000
    80Undersized-0.110 to 0.000-0.043 to 0.000Not RatedDIN 6885198870A8550000
    100Undersized-0.110 to 0.000-0.043 to 0.000Not RatedDIN 6885198870A8570000
    110Undersized-0.110 to 0.000-0.043 to 0.000Not RatedDIN 6885198870A8580000
     

    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.
    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.
    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
    7 mm × 18 mmUndersized-0.090 to 0.000-0.043 to 0.000Rockwell B87DIN 688092288A525000000
    11 mm × 18 mmOversized0.000 to 0.0760.000 to 0.076Rockwell B87—92288A41200000
    11 mm × 18 mmUndersized-0.110 to 0.000-0.043 to 0.000Rockwell B87DIN 688092288A52900000
    18 mm × 18 mmOversized0.000 to 0.0760.000 to 0.076Rockwell B87—92288A43100000
    18 mm × 18 mmUndersized-0.043 to 0.000-0.043 to 0.000Rockwell B87DIN 688092288A53700000
     
    1,000 mm Long
    11 mm × 18 mmUndersized-0.110 to 0.000-0.043 to 0.000Rockwell B87DIN 688092288A57600000
    18 mm × 18 mmUndersized-0.043 to 0.000-0.043 to 0.000Rockwell B87DIN 688092288A58400000
     
    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.
    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
    7 mm × 18 mmOversized0.000 to 0.0760.000 to 0.076Rockwell B87—92288A180000000
    11 mm × 18 mmOversized0.000 to 0.0760.000 to 0.076Rockwell B87—92288A32000000
    18 mm × 18 mmOversized0.000 to 0.0760.000 to 0.076Rockwell B87—92288A42500000
    18 mm × 18 mmUndersized-0.043 to 0.000-0.043 to 0.000Not RatedDIN 688092288A23800000
     
    Zinc-Yellow-Chromate-Plated 1045 Carbon Steel
    Image of Product. Front orientation. Machine Key Stock. Machine Key Stock.
    Zinc-yellow-chromate-plated 1045 carbon steel key stock is an economical choice with good strength and resists corrosion in wet environments.
    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
    11 mm × 18 mmUndersized-0.090 to 0.000-0.043 to 0.000Rockwell B87DIN 688092288A722000000
     
    4140 Alloy Steel
    Image of Product. Front orientation. Machine Key Stock. Machine Key Stock.
    4140 alloy steel key stock is an economical choice with good strength. 4140 alloy steel key stock has greater strength and toughness after hardening than carbon steel, making it useful for high-stress applications.
    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
    11 mm × 18 mmUndersized-0.110 to 0.000-0.043 to 0.000Rockwell B90DIN 688092288A664000000
     
    18-8 Stainless Steel
    Image of Product. Front orientation. Machine Key Stock. Machine Key Stock.
    18-8 stainless steel key stock offers a balance of strength and corrosion resistance. It may be mildly magnetic. 18-8 stainless steel key stock is more corrosion resistant than steel key stock.
    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.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Tolerance,
    mm
    Ht. × Wd.
    Tolerance
    Rating
    Ht.
    Wd.
    Min.
    Hardness
    Specs.
    Met
    Each
    305 mm Long
    18 mm × 18 mmOversized0.000 to 0.0760.000 to 0.076Rockwell B82DIN 17898810A220000000
     
    316 Stainless Steel
    Image of Product. Front orientation. Machine Key Stock. Machine Key Stock.
    316 stainless steel key stock has the best corrosion resistance of our stainless steel key stock and may be mildly magnetic. 316 stainless steel key stock is more corrosion resistant than steel key stock.
    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
    1,000 mm Long
    11 mm × 18 mmUndersized-0.110 to 0.000-0.043 to 0.000Rockwell B85DIN 688092288A6500000000
     
    316/316L Stainless Steel
    Image of Product. Front orientation. Machine Key Stock. Machine Key Stock.
    316/316L stainless steel key stock has the best corrosion resistance of our stainless steel key stock and may be mildly magnetic. 316/316L stainless steel key stock is more corrosion resistant than steel key stock.
    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
    11 mm × 18 mmUndersized-0.090 to 0.000-0.043 to 0.000Rockwell B86DIN 688090457A177000000
     

    Fixture Keys

    Image of ProductInUse. Front orientation. Contains Annotated. Fixture Keys. Fixture Keys.
    Image of Product. Front orientation. Contains Annotated. Fixture Keys. Fixture Keys, Rectangle.

    Rectangle

    Sized to fit with precision in machine table T-slots, use these keys to locate fixtures and vises on your machine table. They mount to the underside of your fixture or vise with a socket head cap screw.
    For Machine Table
    T-Slot Wd., mm
    Lg.,
    mm
    Wd.,
    mm
    Ht.,
    mm
    Wd. Tolerance,
    mm
    For Mounting
    Screw Size
    Mounting Fasteners
    Included
    Each
    Rectangle
     
    Steel
    18221810-0.011 to 0M6
    		No8961A75000000
     

    Tapered Gib Keys

    Image of Attribute. Front orientation. Contains Annotated. Tapered Gib Keys.
    These keys have a tapered body that wedges in to the keyway for a more secure fit than standard machine keys. The gib head makes these keys easy to remove when parts need to be taken apart frequently, such as for maintenance or prototyping. Keys are tapered along their length. Use them to connect gears and other components with tapered keyways to shafts. Keys are made of steel.
    Metric—The height of metric keys decreases by 1 mm for every 100 mm of length. They meet DIN 6887, an international standard for machine keys.
    Tolerance,
    mm
    Head,
    mm
    Lg.,
    mm
    Ht.
    Wd.
    Ht.
    Lg.
    End Ht.,
    mm
    Rate of
    Taper
    Specs.
    Met
    System of
    Measurement
    Each
    1018-1045 Carbon Steel
     
    11 mm × 18 mm
    900.000 to 0.200-0.043 to 0.000181810.2101:100DIN 6887Metric98471A263000000
     
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