Precision Brand 15275 Key Stock 1/2 X 3/16 X 12 in 6 Piece

Product Description

The PRECISION BRAND 15275 is a zinc-finished, low-carbon steel key stock used to secure rotating components such as gears, pulleys, and sprockets to shafts in mechanical drive systems. Each piece measures 0.5 inches wide, 0.1875 inches tall, and 12 inches long, allowing it to be cut to length in the field. The material meets ASTM A108 specification and carries a Rockwell B80-90 hardness rating, providing reliable shear strength for moderate-duty power transmission applications. Each package contains 6 pieces. Machinists, millwrights, and industrial maintenance technicians are the typical installers.

This key stock is suited for use in light to moderate industrial machinery, HVAC blower assemblies, pump drives, conveyor systems, and general power transmission equipment requiring a 0.5-inch wide keyway. The 12-inch length provides flexibility for multiple cuts per piece, reducing material waste on jobs requiring various shaft configurations. The zinc finish offers basic corrosion resistance for indoor or sheltered mechanical environments.

Key Features

• Low-carbon steel construction meeting ASTM A108 material specification
• Rockwell B80-90 hardness for consistent shear performance in moderate-duty drive applications
• Zinc finish provides basic corrosion protection in indoor and sheltered environments
• 12-inch length allows field cutting to fit multiple shaft configurations
• Package includes 6 pieces, reducing per-unit cost for high-volume or repeat-use applications

Compatibility

Designed for use in standard 0.5-inch wide keyways in mechanical shaft-and-hub assemblies across industrial, commercial, and HVAC power transmission applications.

Installation Notes

Installation is typically performed by machinists or maintenance technicians familiar with shaft and keyway tolerances. Shut down and lock out the equipment before removing or installing key stock in accordance with applicable LOTO procedures. Cut key stock to length with appropriate metal-cutting tools and deburr all cut edges before fitting. Verify keyway dimensions and fit before final assembly to prevent fretting or looseness during operation.