Prime-line MP9452 Door Lock Reinforcer Stainless Steel

Product Description

The PRIME-LINE MP9452 is a non-recessed door lock reinforcer plate designed to strengthen the latch zone of an entry door against forced entry. Made from stainless steel, the plate measures 4-15/16 inches wide by 9 inches tall and fits doors that are 1-3/8 inches thick. It accommodates key-in knob locksets with a 2-1/8 inch bore size and a 2-3/8 inch backset. The plate arrives pre-punched for mounting, with all necessary hardware included. Licensed contractors, locksmiths, and security-focused installers use this reinforcer on both residential and light commercial applications.

The MP9452 is suited for entry doors in residential settings where mortise or drive-in latches are present. It works on both metal and wood door construction, making it a practical option for door replacement or repair scenarios where the latch area has been weakened or damaged. The plate's natural stainless steel finish suits standard residential door hardware without requiring additional finishing work.

Key Features

• Non-recessed design reinforces the latch zone without requiring door modifications beyond pre-existing hardware cutouts
• Compatible with both metal and wood door construction
• Pre-punched plate with all mounting hardware included for straightforward installation
• Fits doors with 2-1/8 inch bore size and 2-3/8 inch backset
• Stainless steel construction for corrosion resistance
• Designed for 1-3/8 inch thick doors with mortise or drive-in latches

Compatibility

Designed for 1-3/8 inch thick entry doors fitted with key-in knob locksets, mortise latches, or drive-in latches with a 2-1/8 inch bore and a 2-3/8 inch backset, on both metal and wood door types.

Installation Notes

Installation is typically performed by a locksmith, general contractor, or experienced handyman. Power down any electronic door hardware before beginning work, and verify the door thickness and backset measurements match the plate specifications before mounting. Use the pre-punched holes as guides and secure with the included hardware. Refer to local building codes for any security reinforcement requirements in commercial or multi-unit residential applications.