Prime-line Products S 4634 Mailbox Lock Spring Clip Design

Product Description

The PRIME-LINE PRODUCTS S 4634 is a spring clip design mailbox lock built for straightforward replacement of worn or failed cylinder locks on standard mailbox units. The 5-pin tumbler cylinder provides reliable key control, and the key removes only in the locked position — a standard security feature that prevents accidental unlocking. Each unit ships with 2 keys, a jam nut, and 5 cams, giving the installer the hardware needed to complete the job without sourcing separate components. The key blank is Ilco model 1003M for future key duplication. This lock is suited for locksmiths, property maintenance technicians, and postal facility service personnel.

This lock is designed for use on cluster mailbox units, apartment mail stations, and freestanding residential mailboxes that accept a standard threaded cylinder format. The spring clip retention design simplifies installation in panel-style mailbox doors without requiring specialized tooling. It is appropriate for both residential multi-unit properties and light commercial mail facility applications where a direct cylinder swap is needed.

Key Features

• Spring clip design for secure, tool-friendly cylinder retention in mailbox door panels
• 5-pin tumbler cylinder for dependable key control and pick resistance
• Key removes only in the locked position, preventing unintended unlocking
• Includes 2 keys, jam nut, and 5 cams — complete hardware kit in one package
• Compatible key blank is Ilco 1003M for easy duplication at most locksmith shops
• Replaces Bommer, Florence, Cutler, American Device, and Miami Carey mailbox locks

Compatibility

Designed as a direct replacement for mailbox locks from Bommer, Florence, Cutler, American Device, and Miami Carey. Fits standard threaded cylinder mailbox applications accepting a spring clip retention style lock.

Installation Notes

Installation is typically performed by a locksmith or property maintenance technician. Before beginning, ensure the mailbox unit is not actively in use and that access to the rear of the door panel is available for clip seating. Use the included jam nut and appropriate cam for the door thickness and latch configuration. Do not force the cylinder into the bore; confirm the correct cam orientation before tightening to avoid damaging the clip or door panel.

Technical Specifications

• Lock Type: Spring Clip Design Mailbox Lock
• Tumbler Pins: 5-Pin
• Keys Included: 2
• Hardware Included: Jam nut and 5 cams
• Key Blank: Ilco 1003M
• Weight: 0.24 pounds
• Unit of Measure: Each

Standard Information

• Brand: PRIME-LINE PRODUCTS
• Manufacturer Part Number: S 4634