Automatic Flush Bolt OLDA 34 HZA Right 190x18x18mm per piece

Usage

The Olda 34HZ 18mm automatic flush bolt is designed for secure locking of the passive leaf in double wooden doors, typically used in both residential and commercial settings requiring reliable door closure.

Advantages

• Automatic single-action mechanism ensures the bolt engages and disengages with door movement, reducing manual steps.
• Robust steel construction with electro zinc plating provides corrosion resistance and durability over time.
• Compact dimensions (190 x 18 x 18 mm) enable installation even on narrow door profiles without sacrificing stability.
• Spring-loaded bolt (12 mm diameter, 15 mm throw) offers consistent performance for top or bottom mounting on passive leaves.
• Easily integrates into fire-rated doors when correct accessories are used; minor drawback: accessories must be ordered separately if not included in a kit.

Specifications

• Constructed from steel with an electro zinc plated finish to enhance longevity and resistance to environmental factors.
• No specific certifications listed; suitable for use on wood, steel, or aluminum doors including fire-resistant designs when installed as specified by manufacturer guidelines.
  
• Bolt diameter: 12 mm; projection: 15 mm; product width: 18 mm; height: 190 mm. Forend thickness: 3 mm. Backset (including forend): 11 mm.
  



- Designed to be fully recessed into the edge of the passive door leaf.
- Rounded forends at each end distribute fixing stress efficiently for improved anchoring strength. - Four screws required for mounting (recommended screws size: countersunk, electro-zinc plated).

How it works

This automatic flush bolt is fitted into the edge of a passive door leaf. When the active door closes or opens against it, a concave trigger slides along the striker plate to deploy or retract the spring-loaded locking pin automatically—providing secure locking without manual intervention by users.