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    4 Products

    Undersized Machine Key Assortments

    Image of Product. Front orientation. Machine Keys. Undersized Machine Key Assortments.
    Since they fit more loosely than standard keys, these undersized keys are best for uneven keyways or when you need to disassemble parts frequently, such as during maintenance or prototyping. Made of steel, all keys offer good strength.
    Rounded Key
    Image of Attribute. Front orientation. Rounded Key. Undersized Machine Key Assortments.

    Rounded keys fill oval keyways completely, reducing stress on the key and shaft. In closed keyways, these keys won’t slide along the shaft. Their rounded ends also make it easy to slide gears, hubs, and other components into place.
    Zinc-Plated Steel—Zinc-plated keys resist corrosion in wet environments.
    No. of
    Pieces
    Rounded Keys Included
    Key Size
    Tolerance
    Container
    Type
    Each
    1008-1045 Carbon Steel
    251/8" × 1/8" × 3/4" Lg. (2 Pieces)
    1/8" × 1/8" × 1" Lg. (3 Pieces)
    3/16" × 3/16" × 3/4" Lg. (3 Pieces)
    3/16" × 3/16" × 1" Lg. (3 Pieces)
    3/16" × 3/16" × 1 1/2" Lg. (2 Pieces)
    1/4" × 1/4" × 3/4" Lg. (2 Pieces)
    1/4" × 1/4" × 1" Lg. (3 Pieces)
    1/4" × 1/4" × 1 1/4" Lg. (2 Pieces)
    1/4" × 1/4" × 1 1/2" Lg. (1 Piece)
    5/16" × 5/16" × 1" Lg. (1 Piece)
    5/16" × 5/16" × 1 1/2" Lg. (1 Piece)
    3/8" × 3/8" × 1" Lg. (1 Piece)
    3/8" × 3/8" × 1 1/2" Lg. (1 Piece)    		-0.002" to 0"—4424N11000000
    583/16" × 3/16" × 3/4" Lg. (9 Pieces)
    3/16" × 3/16" × 1" Lg. (9 Pieces)
    1/4" × 1/4" × 3/4" Lg. (8 Pieces)
    1/4" × 1/4" × 1" Lg. (7 Pieces)
    1/4" × 1/4" × 1 1/4" Lg. (7 Pieces)
    1/4" × 1/4" × 1 1/2" Lg. (6 Pieces)
    5/16" × 5/16" × 1" Lg. (3 Pieces)
    5/16" × 5/16" × 1 1/2" Lg. (3 Pieces)
    3/8" × 3/8" × 1" Lg. (3 Pieces)
    3/8" × 3/8" × 1 1/2" Lg. (3 Pieces)    		-0.002" to 0"Plastic Box4424N1200000
     
    Zinc-Plated Steel
    254 mm × 4 mm × 80 mm Lg. (2 Pieces)
    5 mm × 5 mm × 80 mm Lg. (3 Pieces)
    6 mm × 6 mm × 80 mm Lg. (2 Pieces)
    7 mm × 7 mm × 80 mm Lg. (2 Pieces)
    8 mm × 7 mm × 80 mm Lg. (2 Pieces)
    8 mm × 8 mm × 80 mm Lg. (3 Pieces)
    10 mm × 8 mm × 80 mm Lg. (2 Pieces)
    10 mm × 10 mm × 80 mm Lg. (2 Pieces)
    12 mm × 8 mm × 80 mm Lg. (2 Pieces)
    12 mm × 12 mm × 80 mm Lg. (2 Pieces)
    16 mm × 10 mm × 80 mm Lg. (1 Piece)
    18 mm × 11 mm × 80 mm Lg. (1 Piece)
    20 mm × 12 mm × 80 mm Lg. (1 Piece)    		-0.03 mm to 0 mmPlastic Box98800A130000000
    584 mm × 4 mm × 40 mm Lg. (8 Pieces)
    5 mm × 5 mm × 40 mm Lg. (8 Pieces)
    6 mm × 6 mm × 40 mm Lg. (10 Pieces)
    8 mm × 7 mm × 40 mm Lg. (4 Pieces)
    8 mm × 8 mm × 40 mm Lg. (10 Pieces)
    10 mm × 8 mm × 40 mm Lg. (4 Pieces)
    10 mm × 10 mm × 40 mm Lg. (4 Pieces)
    12 mm × 12 mm × 40 mm Lg. (4 Pieces)
    14 mm × 9 mm × 40 mm Lg. (4 Pieces)
    16 mm × 10 mm × 40 mm Lg. (2 Pieces)    		-0.03 mm to 0 mmPlastic Box98800A14000000
     
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