STI STI-9729 Wire Guard Damage Stopper
Overview
The STI-9729 is a protective wire guard designed to shield lock and strike hardware from accidental or intentional damage during installation and in-service operation. Built from hard-drawn steel wire (9-gauge, 0.148-inch diameter) with polyester powder coating in sky white, this accessory installs directly over door hardware to prevent impact damage in high-traffic corridors, construction zones, and facilities where physical stress on door assemblies is common. The guard reduces maintenance calls caused by bent hardware or cosmetic damage that compromises lock function.
Compatibility
The STI-9729 integrates with standard mortise locks, cylindrical locks, and strike assemblies used in commercial access control installations. No specific electronic control system is required — the guard works as a mechanical shield for any traditional or electronic locking hardware mounted on single and double doors. It is suitable for retrofit applications on existing door hardware and new installations across commercial, institutional, and industrial facilities. The 9.36-inch width (238 mm) and variable height dimensions accommodate most standard door prep configurations; confirm specific mounting footprint against your lock body dimensions before ordering.
Installation Notes
Installation requires drilling four 1/4-inch-diameter holes 1.5 inches deep into the door frame or strike plate location. The kit includes four mounting brackets, four machine screws, and four anchors — standard fastening for wood or metal door frames. Center the guard over the hardware, mark the four hole locations with pencil, drill, insert anchors, position the guard, and tighten screws. No special tools beyond a 1/4-inch drill bit are needed. Total assembly time is typically under 15 minutes per door.
What's in the Box
- 1x STI-9729 wire guard assembly
- 4x mounting brackets
- 4x machine screws
- 4x anchors
