McMaster 98800A130 Zinc-Plated Steel Undersized Machine Key Assortment Rounded, with 25 Pieces

Original price was: $224.65.Current price is: $56.16.

SKU: SK0025029-US20260630-101428 Category: Tag:

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.

Number of Pieces

25

Rounded Keys Included

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)

Material

Zinc-Plated Steel

Tolerance Rating

Undersized

Key Type

Rounded

System of Measurement

Metric

Key Tolerance

-0.03mm to 0mm

Container Type

Plastic Box

Container Features

Compartmented, Lid Chart

RoHS

RoHS 3 (2015/863/EU) Compliant

REACH

REACH (EC 1907/2006) (06/27/2024, 241 SVHC) Compliant

DFARS

Specialty Metals COTS-Exempt

Country of Origin

United States

USMCA Qualifying

No

Schedule B

731824.0000

ECCN

EAR99

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