Prime Line Products S 4140C 5 Cam Mailbox Lock 6 Pack

Product Description

The PRIME LINE PRODUCTS S 4140C is a 5-cam, 5-pin tumbler mailbox lock assortment designed for residential and commercial mailbox service and replacement work. Each cylinder features a die-cast body with a nickel-plated face, brass pins, and a spring steel locking clip for durable, corrosion-resistant operation. The cylinder measures 9/32 inches in length with a 1-3/32 inch bolt throw. All cylinders rotate 90 degrees counter-clockwise to open, and each lock ships with 2 keys. The assortment format lets technicians and locksmiths stock one SKU that covers five common mailbox lock configurations, reducing the need to carry multiple individual replacements.

This assortment is suited for property managers, locksmiths, and maintenance professionals who service multiple mailbox brands across residential complexes, apartment buildings, or commercial mail centers. The multi-cam design covers five distinct lock profiles in a single package of 6 units, making it practical for technicians who regularly service mixed-brand mailbox banks. Each cam variant is pre-configured for its specific locked position, so the correct orientation is matched to the target lock brand before installation.

Key Features

• 5-cam assortment covers five mailbox lock types in one package of 6 units
• Die-cast cylinder with nickel-plated face for corrosion resistance
• Brass pins and spring steel locking clip for reliable engagement
• All cylinders rotate 90 degrees counter-clockwise to open
• Cylinder length 9/32 inches, bolt throw 1-3/32 inches
• Includes 2 keys per lock

Compatibility

Replaces the following mailbox lock types: American Lock (lock length 7/16 inches, cam length 1-7/16 inches, left position for locked); Florence Lock (lock length 11/32 inches, cam length 15/16 inches, up position for locked); Miami-Carey Lock (lock length 5/16 inches, cam length 13/16 inches, up position for locked); Bommer Lock (lock length 7/8 inches, cam length 1-7/32 inches, down position for locked); Auth Lock (lock length 9/32 inches, cam length 1-3/32 inches, left position for locked).

Installation Notes

Installation is typically performed by a locksmith or qualified maintenance technician. Power or postal access to the mailbox bank should be secured and tenant notification provided before service begins. Confirm the correct cam profile and locked-position orientation for the target lock brand before inserting the cylinder. No special tools beyond standard locksmith or hand tools are typically required for cylinder swap-out.