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 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 keys resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
Rounded Key Assortments
Rounded Key
| Number of Pieces | Rounded Keys Included | Key Tolerance | Container Type | Each | |
1008-1045 Carbon Steel | |||||
|---|---|---|---|---|---|
| 25 | 1/8" × 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" | __ | 0000000 | 000000 |
| 58 | 3/16" × 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 Box | 0000000 | 00000 |
Zinc-Plated Steel | |||||
| 25 | 4 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) | -0.03mm to 0mm | Plastic Box | 000000000 | 000000 |
| 58 | 4 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) | -0.03mm to 0mm | Plastic Box | 000000000 | 00000 |