Mak-a-key C207-361208305 Oversized Key Stock 12in Steel

Product Description

The MAK-A-KEY C207-361208305 is an oversized key stock used to secure rotating components such as gears, pulleys, and sprockets to shafts in mechanical drive assemblies. Manufactured from C1045 steel with a zinc-plated finish, this key stock provides reliable torque transmission and added corrosion resistance in typical industrial and HVAC mechanical service environments. Each package contains five pieces, each measuring 12 inches in length with an 8.00 mm width and 12.00 mm height, making them well suited for applications requiring oversize key dimensions. This item is commonly installed by millwrights, maintenance technicians, and HVAC mechanical service professionals.

Oversized key stock is used in mechanical drive systems where standard key dimensions are insufficient for the shaft and keyway tolerances specified. Typical applications include fan assemblies, pump drives, conveyor systems, and other rotating equipment found in commercial and industrial HVAC, refrigeration, and general mechanical service. The 12-inch length allows field trimming to fit a wide range of shaft lengths. The zinc plating provides a baseline level of corrosion protection suitable for most indoor mechanical service conditions.

Key Features

• Oversized key stock dimensions: 8.00 mm wide by 12.00 mm high, suited for oversize keyway applications
• C1045 steel construction for reliable strength and machinability
• Zinc-plated finish for corrosion resistance in typical service environments
• 12 inches long - field-trimmable to required shaft length
• Sold in a package of 5 pieces, minimum order quantity of 1 package

Compatibility

Designed as an OEM-style replacement or service stock key for mechanical drive assemblies requiring oversized key stock with 8.00 mm width and 12.00 mm height dimensions in C1045 steel.

Installation Notes

Installation of key stock is typically performed by qualified mechanical or HVAC service technicians. Always de-energize and lock out the equipment before servicing any rotating drive assembly in accordance with applicable OSHA lockout/tagout procedures. Key stock should be cut to the required length using appropriate metalworking tools and deburred before installation to ensure proper fit within the keyway. Verify shaft and keyway tolerances match the key stock dimensions before installation.