551 Fastener

Automatic Composite Lock with Internal Safety Mechanism (Model 551)

Application: For hinged rebated and overlapping doors with offsets from 27 to 162 mm.
Door leaf thickness: From 60 to 140 mm (±3 mm).
Model: 551 – standard version with a lock.
Material: Zinc-passivated steel and composite.

Features:

• Adjustable strike in 3 dimensions.
• Invisible, tamperproof screws.
• Compatible with both left- and right-handed doors.
• Quiet and smooth operation, easy to open.
• Hygienic design – no visible screws.
• Reduced installation time due to through-fixing screws (no inserts required).

New inside release button:

• Requires 50% less force to open.
• Ergonomic grip.

Options:

• Internal emergency release 2114HP.
• Antimicrobial coating.

Specifications:

• Weight: 1284 g.
• Number of screws: 4 pcs.
• Screw dimensions: 6 mm.

Below is a link to a file illustrating the required number of washers for specific door leaf thicknesses, including the gasket.

Click here