Installation Instructions
For John Sterling 1170 Series
Heavy Duty Fall Prevention and Home Security Guards


For swing-open mounting:

1. Mount locking channel on right hand side of window: Drill 5/32" or 11/64" hole 3" deep for top screw only. Hang channel loosely on top screw, drill remaining holes and mount.

2. Hang right side of bars in locking channel. Hold hinge channel against left side of window, make sure guard is level, mark and drill top hole. Insert screw, drill remaining holes and drive screws.

Note: Install only in solid, non-rotting window tracks. Expand guard to fit tightly into outside window track. Make sure guard is in level position NO MORE THAN 4-1/2 inches from sill to upper half of bottom bar.

Installation Tips
Surface Mount or Recess Mount?



Screws must project into wall studs for maximum security.
In most cases, surface mounted Burglar Bars are easier to install because the screws are easier to drive. Surface mounting also makes screws more difficult to work on from outside the house by a potential intruder who might break the window and attempt to remove the screws.
How to make screws tamper resistant:

Optional: After installation drill out Phillips cross slots in each screw to make tamper resistant. To remove bars later, drill deeper into screws, removing heads. After removing bars, clamp screw shanks in reversible drill and back out.




Easy way to mount on concrete walls:





For easier mounting on concrete or concrete block walls, 2" X 4" lumber can be bonded to wall alongside windows with high grade construction adhesive. Bars then can easily mount on 2" X 4"s.
Safety Notes
  • Before installing, verify building and fire codes are not being violated. Contact local building code or fire department for specific codes.
  • Screws should be anchored firmly into a solid stud or frame material to achieve maximum safety.
  • Parents, child-care custodians and older children must understand the proper operation of this guard in case of emergency.
  • Window guards are designed to be a deterrent against accidental window falls. This product is not intended as a substitute for proper adult supervision.