Precision Brand 57506 Stainless Steel Key Stock 7/16x7/16x12 in

Product Description

The PRECISION BRAND 57506 is a solid stainless steel key stock bar used to secure rotating components — such as pulleys, gears, and sprockets — to shafts in mechanical drive systems. Cut to a 12-inch length with a square 7/16 x 7/16-inch cross section, this piece can be trimmed to fit specific keyway depths during installation. The plain finish stainless steel construction provides corrosion resistance suitable for wet, washdown, or outdoor environments. Mechanics, millwrights, and industrial maintenance technicians keep key stock on hand as a standard drive-train consumable.

This key stock is suited for light to medium-duty power transmission applications across industrial, commercial, and agricultural equipment. It is commonly used in pump shafts, conveyor drives, fan assemblies, and general mechanical power transmission setups where a keyed shaft-to-hub connection is required. The 12-inch bar length gives the installer flexibility to cut multiple keys from a single piece, reducing waste on jobsites where multiple shaft sizes are in service.

Key Features

• Square 7/16 x 7/16-inch cross section fits standard keyway slots of that dimension
• 12-inch length allows field-cutting to required key lengths
• Stainless steel construction resists corrosion in wet and washdown environments
• Plain finish requires no additional surface preparation before installation
• Sold as a single piece, allowing quantity purchasing to match actual job needs

Compatibility

Designed as an OEM-style replacement or service-stock key stock for any shaft and hub keyway application calling for a 7/16 x 7/16-inch square key in stainless steel.

Installation Notes

Key stock installation is typically performed by a millwright or licensed mechanical technician. Shut down and lock out the drive system per OSHA lockout/tagout procedures before removing or installing any shaft key. Measure the keyway depth on both the shaft and hub before cutting the key to length, and deburr all cut edges to ensure proper seating. Do not force an oversized key into a keyway, as this can damage the hub bore or shaft.