Installation Instructions
For John Sterling 1130 and 1130-ASTM Series


IMPORTANT: Screws must penetrate into wall studs for maximum security.

For swing-open mounting:
First, 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.
Next, 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.

For fixed mounting, non-opening:
Hold bars in position, mark top hole in hinge channel and drill 5/32" or 11/64" hole 3" deep. Insert screw, level bars and drill one hole through top of fixed channel. Drill remaining holes and drive screws.

Note: 3" screws in this package are "unhardened" to allow drilling out cross-slots in Phillips heads after installation to make tamper-resistant. Extra care must be taken in driving these screws to prevent driver from spinning and mutilating screw. Make sure driver tip is in good condition and press firmly while driving. Lubricate screws with soap for easier driving. To remove guard later drill deeper into screws, removing heads. After removing guard, clamp screw shanks in reversible drill and back out.

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.