Protect your shutters with our innovative Double Security Bar!

Home > Shutter security bar

Available in black, white and white zinc-plated

Permanent fixing: no more risk of losing the bars

Our security bars are securely attached to the shutter, eliminating the risk of losing them.

Free axle for increased safety

Inside the horizontal tube, our safety bar contains a steel pin that rotates freely when a hacksaw is used.

Click on images to enlarge

Why is our double safety bar superior to conventional models?


Conventional security bars, consisting of a single square steel bar and 4 folded supports (2 simple and 2 anti-lift), have their limits. That’s why our PRECIBLOCK® double bar is a far more effective choice:


Reinforced protection against cutting
: our double bar is designed with a robust steel tube and a Ø 10 mm free axle. Even a hacksaw cut won’t overcome this reinforced safety.

No storage required: Permanently attached to the shutter, our double bar is always ready to secure your openings. You won’t have to worry about misplacing it.

Integrated stop: A stop prevents the bars from coming out of the guides when they are folded vertically up or down. This guarantees trouble-free operation and optimum safety.

Complete kit: each set includes 2 bars with free axle, top and bottom runners, and high-quality screws and bolts. Assembly is quick (less than 15 minutes), thanks to the supplied instructions.

Protect your shutters with our double security bar! 🛡️🏠

A complete kit, ready to install.

Click on the map to enlarge

Detailed list of kit contents :

  • 2 bars with integrated free axle
  • 2 slide assemblies TOP and BOTTOM
    • A complete screw kit:
      – 4 rounded-head screws (type “TRCC tête ronde collet carré | indévissable de l’extérieur) Ø8 x 50 supplied with their nuts and washers,
      – 8 zinc-plated wood screws 4.5 x 20 mm to complete the assembly.


Download the installation instructions for
Double safety bar PRECIBLOCK


Safety and Quality with PRECIBLOCK on Resiparc.com

PRECIBLOCK, the shutter security system developed by Nicolas Favre, is now available on resiparc.com. This patented system, renowned for its simplicity and effectiveness, is a valuable addition to our product range. Buy with confidence, knowing you’re investing in quality and safety

Manufacturer’s Direct Online Shop

Quality products made in Haute-Savoie