Key stock, also known as keyway stock or key bar, is a small metal component used in machinery and mechanical systems to transmit torque between rotating shafts and components, ensuring a secure connection and preventing slippage. Key stock is often used to connect components like gears, pulleys, sprockets and couplings to shafts, providing a positive driving force without relying solely on friction.

Key stock features a standardized shape, usually rectangular or square in cross-section, and is precisely sized to fit into matching keyways or keyslots that are milled or machined into both the shaft and the component. The keyway provides a recessed groove into which the key stock fits, creating a tight and secure coupling that prevents relative movement between the components.

 

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Diameter

Length

Material

Carbon Steel

Finish

Zinc Plated

Type of Packages

BLK-Blk

Item #

Item Name

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N/A 1/4 X 1 3/4 SQUARE KEY STOCK ZINC N/A 1 $0.58 Add To Cart
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N/A 1/8 X 12 SQUARE KEY STOCK ZINC N/A 10 $29.64 Add To Cart
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N/A 5/32 X 12 SQUARE KEY STOCK ZINC N/A 10 $29.64 Add To Cart
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N/A 3/16 X 12 SQUARE KEY STOCK ZINC N/A 10 $37.72 Add To Cart
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N/A 1/4 X 12 SQUARE KEY STOCK ZINC N/A 10 $51.21 Add To Cart
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N/A 7/16 X 12 SQUARE KEY STOCK ZINC N/A 5 $60.64 Add To Cart
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N/A 1/2 X 12 SQUARE KEY STOCK ZINC N/A 5 $71.43 Add To Cart
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N/A 5/16 X 12 SQUARE KEY STOCK ZINC N/A 10 $72.08 Add To Cart
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N/A 3/8 X 12 SQUARE KEY STOCK ZINC N/A 10 $93.66 Add To Cart
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N/A 5/8 X 12 SQUARE KEY STOCK ZINC N/A 5 $104.11 Add To Cart
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N/A 9/16 X 12 SQUARE KEY STOCK ZINC N/A 5 $119.25 Add To Cart
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N/A 3/4 X 12 SQUARE KEY STOCK ZINC N/A 5 $141.49 Add To Cart
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N/A 7/8 X 12 SQUARE KEY STOCK ZINC N/A 5 $185.96 Add To Cart
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N/A 1 X 12 SQUARE KEY STOCK ZINC N/A 5 $248.30 Add To Cart
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