Siba 10189/4MF Mortise Lock with 5 Keys

The Siba 10189/4MF Mortise Lock is a high-quality security solution designed for reliable door locking in residential and commercial environments. Engineered with precision, this lock features a robust steel construction that ensures long-term durability and resistance to daily wear. The mechanism is designed for smooth operation, providing a secure and consistent locking experience for standard interior and exterior doors.

Advantages

This mortise lock offers exceptional reliability due to its solid steel build, which provides a sturdy barrier against unauthorized access. The inclusion of five keys in the package adds significant convenience, allowing for multiple users or providing reliable backups without the immediate need for additional key cutting. Its standard design ensures compatibility with a wide range of door types, making it a versatile choice for various security upgrades or new installations.

Suitable for

• Residential entrance and interior doors
• Commercial office doors
• Replacement of standard mortise locking mechanisms
• Applications requiring multiple key access

When it may not be suitable

This lock may not be suitable for doors with non-standard thickness or specialized fire-rated requirements that demand specific certification. It is also not intended for high-security vault applications or doors requiring advanced electronic access control systems.

Key specifications

• Material: Steel
• Backset: 50 mm
• Included: 5 keys
• Warranty: 24 months

How to use

Installation should be performed by a qualified professional to ensure the lock is correctly aligned within the door mortise. Once installed, the lock is operated by inserting the key into the cylinder and turning it to engage or retract the bolt. Ensure the door is fully closed before attempting to lock the mechanism to prevent damage to the bolt or strike plate.

What to consider before purchase

• Verify the backset measurement of 50 mm matches your existing door preparation.
• Check the door material and thickness to ensure compatibility with a mortise lock.
• Ensure the door frame is equipped with a compatible strike plate.

Usage recommendations

Regularly inspect the lock mechanism for debris and apply a light, non-greasy lubricant if the operation becomes stiff over time. Avoid using excessive force when turning the key to prevent internal damage.