WINKHAUS STV-F 1660/35 92/8 R4 Multipoint Mortise Lock Class 4 Burglary Protection

Product Overview

WINKHAUS STV-F 1660/35 92/8 R4 is a multipoint mortise lock used in external and internal entry doors where enhanced burglary resistance is required, such as residential and commercial buildings. The lock conforms to burglary protection class 4 for high security applications, though it does not offer drill resistance, and is compatible with doors meeting class 3 burglary resistance. Durable construction and tested performance provide reliability in environments exposed to humidity and temperature fluctuations.

The most significant feature of this unit is its tested operational longevity, evidenced by 200,000 cycles under a 25N latch load, which reduces maintenance frequency and replacement risk for property managers and institutional buyers. This makes the lock particularly well-suited for bulk procurement in high-traffic residential complexes and commercial entryways where security and long-term function are critical project requirements.

Key Features

• Multipoint locking ? improves security by engaging multiple points along the door frame


• Class 4 burglary protection ? heightened security for entry doors, without drill resistance


• Compatible with class 3 burglary-resistant doors ? integrates with standard commercial/residential security doors


• Corrosion resistance ? suitable for humid and outdoor environments


• Temperature resistance ? maintains function under varied climate conditions


• High durability ? tested for 200,000 cycles with 25N latch load for extended service life

Technical Specifications

• Lock Model: WINKHAUS STV-F 1660/35 92/8 R4


• Burglary Protection: Class 4 (no drill resistance)


• Door Compatibility: Class 3 burglary resistance


• Durability Test: 200,000 cycles (25N latch load)

Applications

Used in entry doors for residential apartment complexes, commercial buildings, and institutional facilities requiring multipoint locking and high burglary resistance. Suitable for both external and internal main doors exposed to humidity or temperature swings. Ideal for bulk installation in new builds or security upgrade projects.

Packaging & Shipping

Standard export packaging. Unit includes lock body and installation accessories.