Mak-a-key C207-360404305 Oversized Key Stock 12in Steel 5pc

Product Description

The MAK-A-KEY C207-360404305 is an oversized key stock designed for use in power transmission and mechanical drive applications. Manufactured from C1045 steel with a zinc-plated finish, this key stock delivers reliable corrosion resistance and the mechanical strength required for keyed shaft and hub assemblies. Each piece measures 12 inches in length with a 4.00 mm height and 4.00 mm width cross-section. This package contains 5 pieces, making it a practical choice for shops and field technicians who need spare stock on hand for repairs or new installations.

Oversized key stock like the C207-360404305 is used across HVAC, industrial, and mechanical maintenance applications wherever a keyed connection joins a shaft to a pulley, sprocket, gear, or coupling. It is appropriate for both residential and light commercial equipment repairs as well as general industrial drive system work. Machinists, millwrights, HVAC technicians, and maintenance professionals typically cut, file, or mill this stock to fit specific keyway dimensions as required by the application.

Key Features

• C1045 steel construction provides high tensile strength suitable for drive shaft and hub assemblies
• Zinc-plated finish offers corrosion resistance for extended service life
• 12-inch length allows cutting to custom sizes for a wide range of keyway applications
• 4.00 mm x 4.00 mm cross-section fits oversized keyway specifications
• Package includes 5 pieces for stock or multi-repair use

Compatibility

Designed as an oversized key stock replacement or new-installation component for keyed shaft and hub assemblies requiring a 4.00 mm x 4.00 mm cross-section and up to 12 inches of usable length.

Installation Notes

Key stock installation is typically performed by machinists, millwrights, or qualified mechanical technicians. Always de-energize and lock out the drive system before removing or installing key stock. Key stock should be cut to the required length and deburred before fitting into the keyway. Refer to the equipment manufacturer's specifications for proper key fit and tolerances.