Value Collection 33965 Undersized Key Stock 7/16x7/16x12 Steel

Product Description

The VALUE COLLECTION 33965 is an undersized key stock bar used to secure rotating components such as gears, pulleys, and sprockets to shafts in mechanical drive systems. Cut from cold drawn steel with a plain finish, this key stock measures 7/16 inches high by 7/16 inches wide by 12 inches long. The undersized designation means the cross-section is machined slightly below nominal, allowing a controlled slip fit into standard keyways during assembly. Machinists, millwrights, and maintenance technicians working on industrial drive trains, pumps, and conveyor systems rely on key stock of this profile for accurate power transmission and repeatable positioning.

This key stock is suited for light to medium-duty mechanical assemblies in both industrial and commercial maintenance settings. It is commonly cut to length on-site using a hacksaw, cold saw, or mill and fitted into standard 7/16-inch keyways on shafts and hubs. Typical applications include pump and motor coupling assemblies, fan shaft retention, and general-purpose machine repair where a replaceable key is required. The 12-inch bar length provides enough stock for multiple short keys from a single piece.

Key Features

• Undersized cross-section for a controlled slip fit in standard 7/16-inch keyways
• Cold drawn steel construction provides consistent dimensional tolerances and good surface hardness
• Plain finish — no coating to interfere with close-tolerance fits
• 12-inch bar length yields multiple cut-to-length keys per piece
• Square 7/16 inches x 7/16 inches profile suits common shaft and hub keyway combinations

Compatibility

Designed as a standard undersized key stock replacement for mechanical drive assemblies using 7/16-inch square keyways on shafts and hubs.

Installation Notes

Installation is typically performed by a machinist or millwright. De-energize and lock out the drive system before removing or fitting any shaft keys. Key stock should be cut to length with a cold saw or mill; avoid grinding cuts that can harden the ends and complicate fitting. Verify keyway dimensions and shaft tolerances before installation to ensure proper seating and engagement.